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Set Q# Question a b c
B 16Sequence of numbers where succeeding
term is greater than the preceding termdissonant isometric convergent
A 16What's next in the sequence: 2, 3, 4, 5,
9,`7…..33
B 31
The distance of one locus of an ellipse to
the first vertex is 4 and that of the 2nd
vertex is 16. Compute the circumference
of the ellipse
31.41 50.65 56.9
A 32
A square section ABCD has one of its side
equal to X. Point E inside the square
forming an equilateral triangle BEC having
one side equal to the side of the square.
Find the angle AED
60° 65° 70°
B 32A parabola has an equation of x
2 = 20y.
Find the latus rectum of the parabola.
B 33Given vertices traingle A(1,3) B(7,0) C(4,6).
Find the centroid(6,9/2) (9/2,6) (3,4)
34
The radius of the sphere sector is 12cm
with central angle of 60°. Compute for the
volume of the segment of the zone.
93.35 117.23 121.39
36
From point O on the ground of a square
courtyard of area 16000ft2 the angles of
elevation of three flagstaff at equal height
at three consecutive order 45°, 60°, 60°
183.11 162.46 215.45
B 37
A sphere having a diameter of 30 cm. The
altitude of the first segment is 6cm. What
is the ratio of area zone of the second to
that of the first?
2:01 3:02 4:03
A 41
An icecream cone is filled with icecream
and another form in hemisphere on top of
the cone. The diameter of the cone is
equal to the surface lateral, the radius is
25mm. Find the height of the cone.
33.4 43.3 24.4
B 42
The upper and lower bases of frustum of a
regular pyramid at 3m x 4m and 6m x 8m
respectively, if the volume is 140 cu.m.
What is the distance between base?
5 7 9
B 43
A truncated prism has square horizontal
base. The vertical edges at each corner are
4, 5, 6 & 7. The volume of the prism is
8800 cu m. Compute the length at one
side of the prism
20 m 37.5 m 40 m
A 43
A reinforced bridge constructed to pass in
the middle of a circular lake. Point A
outside the lake a distance of 1km from
the bridge embankment and collinear of
both embankment a detour is constructed
tangent to periphery of the lake passing to
point B which is 3km from point C, all
other location is perpendicular to the lake.
Determine the length of the bridge.
3 3.5 4
B 44
A regular hexagonal pyramid with lateral
length of 8cm and whose side if the base is
equal to 6cm. Find the volume of the
pyramid.
177.33 155.67 168.31
A 44
Given the area in the first quadrant
bounded by x2 = 8y, the line x = 4 and the x-
axis, what is the volume generated by
revolting this area about the y-axis
50.26 52.26 53.26
A 45
Find the area of the portion of the curve
x^2=y for y=1 to y=2 when it is revolved
about the y-axis.
19.84 17.86 16.75
A 46Find the area bounded by the curve
y^2=9x and its latus rectum.10.5 13.5 11.5
B 47
Find the surface area of the portion of the
curve x62 = y from y=1 to y=2 revolved
about the y-axis
19.84 17.86 16.75
B 48
Given the area of the first quadrant
bounded by the curve x^2=8, the line x+4
and the x-axis. Find the volume generated
by rotating the area about the y-axis.
A 49
Two equilateral triangle overlap each
other, forming a 5 pointed star (pentagon).
What is the area of
B 50
Regular polygon inscribed in a circle with a
radius of 12 and has 20 diagonals. How
many sides of polygon?
71Calculate the limit ((4(tanx)^3)/(2sinx-x))
as x approaches 0.
726 batteries, 2 detect, 2 batteries without
replacing
B 74A can solve 4/5, B 2/3, C 3/7. If all try,
what is the probability?0.64 0.52 0.96
A 84 Quartile deviation measure of of division central tendency certainty
A 86
In a 8:00am GMT, what is the time in the
Philippines which is located 120⁰ east
longitude?
3:00 AM 4:00 AM 3:00 PM
A 87Find the area of the spherical triangle with
radius of 5m and angles of 40, 65, and 11012.34 14.39 16.45
B 88
Determine the determinant of
| 1 -2 3 1 |
| 0 2 -9 -2 |
A = | 0 0 -3 -1 |
| 0 0 0 -1 |
6 -6 12
A 88 The coversine of A is 0.134, what is A? 60 45 30
B 89
19 kilos of gold losses 1 kilo, 10 kilos of
silver losses 1 kilo, weighed in water. Find
the weight of the gold in the bar of gold
and silver weight is 106 kilos in air and 99
kilos in water.
B 96
The lateral area of thye right circular cone
is 40pi sq. M. The base radius is 4m. Find
the slant height.
A 99
Two worker A and B, A is 2 times faster
than B. How many days they are working
together, how long does it take to worker
B alone?
B 100
A circle with the center at (0,0), radius 5
units. What is the equation of the tangent
line?
A
The rate of population growth of a certain
city is proportional to the number of
inhabitant. If the city population now is 40
million and expected to double in 25 years.
In how many years will the population be 3
times the present.
60 years 50 years 30 years
15 transistors, 3 defective, choose 2
random without replacement, prob. At
least 1 good
9 books not 3 all together
icosahedron 6cm edges volume?
Which follows logically in this series of no.
2, 3, 4, 5, 9, 17, ..33 34 36
Find the diff equation of y'=1+y2
y=tan-1
(x) + c y=tan(x) + c y=tan(x+c)
x^3 = y, y=8, y-axis revolved about the y-
axis. Find the centroid
Integral of e^x-1 / e^x+1 dx
At what time after 12 noon will the hour
hand and minute hand form 120 deg for
the first time?
integral of cos3a^8 from 0 to pi/6
Ferris wheel of 15 m in diameter moving in
1 rev per 2 mins. Center is 9m from the
ground. How fast is it moving if it is 12.5 m
above the ground?
x^2-6x+k=0.If one root exceeded the other
by two, what is the value of k? 5 -6 8
A 100 mg radium became 96 g in 200
years, how much radium will be present
after 300 years
94.06 g 92.05 g 93.10 g
Newton's Law of Cooling28 degrees
celcius
A rubber ball is dropped from a height 6 m.
On each rebound, it rises 2/3 of the height
from which it is fell. Find the distance
travelled by the ball before it comes to a
rest. 18 20 24
An alloy of silver and gold weighs 15 oz. in
air and 14 oz. in water. Assuming that
silver loses 1/10 of its weight in water and
gold losses 1/18 of its weight, how many
oz. at each metal are in the alloy?
a. silver = 4.5 oz;
gold = 10.5 oz
silver = 3.75 oz;
gold = 11.25 oz
c. silver = 5 oz;
gold = 10 oz
y^2 = C(x^3) (4,-2)
Determine the determinant of
| 2 -3 4 -2 |
| 3 4 2 5 |
A = | -5 -2 3 -4 |
| -3 2 0 -5 |
d Anwer
divergent divergent
33
62.83
75° 65°
(4,3)
99.17
114.31
4:01
44.2
12
56.57 m
4.5
189.55
51.26
18.84
12.5
18.85
0.81
dispersion
4:00 PM
15.27
-12
21
40 years
38
y=tan(x)
-8
94.06 g 95 g
26
d. silver = 2.75
oz; gold = 12.25
oz
(DI TALAGA
ETO UNG
GIVEN SA PRE
BOARD! pero
ganito ung
problem
binago lang
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ID No. Set Q# Question a b
B 41 Force acting along a circumferencelongitudinal
stressyield stress
A 41
A light of about 0.0015W of 555 nm
wavelength, that corresponds to yellow-
green light which is sensitive to human
eyes.
1 candela 1 lumen
B 421 Curie is equivalent to how many
Becquerel?3.7x10^10 1.69x10^20
B 43
It is formally defined as the radiation
intensity required to produce a charge of
0.000258 Coulombs per kilogram of air.
Rad Rem
B 44
A stone tied to a string is whirled in a
horizontal circle. The velocity is then
doubled without changing the length of
the string. Afterwards, what is the
magnitude of the acceleration?
the same doubled
A 45Alpha particle is the same as the nucleus of
what atom?Hydrogen Helium
A 46
It is a kind of radioactive decay in which
the nuetron number increases by 1, atomic
number decreases by 1 and mass number
remains unchanged.
alpha decaybeta-minus
decay
26879 B 47
A double convex lens with faces of radii 22
cm and 24 cm. When an object is placed
30 cm from the lens, a real image is
formed 45 cm from the lens. Determnie
the refractive index of the lens material.
1.21 1.64
B 48
A light of about 0.0015W of 555 nm
wavelength, that corresponds to yellow-
green light which is sensitive to human
eyes.
1 candela 1 lumen
25583 A 49
What is the radiant energy received at
second over each square meter at the
right angle of sun's rays at the top of the
atmosphere?
1400 J 6000 J
25584 A 50
_______ is a thermodynamic potential
that measures the "useful" or process-
initiating work obtainable from an
isothermal, isobaric thermodynamic
system.
Gibbs free
energy
Du-pont
Potential
71
It refers to the energy change
accompanying a mole of electron being
added to a mole of electron being added
to a mole of gaseous atoms or ions.
electronic
affinitybingling energy
25586 B 72
States that the partial pressure of a solvent
over a solution is given by the vapor
pressure of the pure solvent times the
mole fraction of the solvent in the solution
Dalton's
principle of
partial pressure
de'Broglies
hypothesis
A 72
It is the process of
attracting potential employees
to the company so that the
selection process can be
carried out.
Advertising
A 73x(t) = (4m/s)t + (7m/s2)t2 + (5m/s3)t3 -
(0.35m/s4)t4
74It is the crystal formation categorize as
open form… single faceDome Pinacord
75
A carnot heat engine reserves 500kJ of
heat per cycle from high temperature
600°C and rejects heat at low
temperature at 40°C. What is the thermal
efficiency
93.33% 6.67%
B 77 A farsighted vision can be corrected by concave convex
78 Ocean floors, moving of continents
B 78A predefined unifying theory that relates..
Growth of continentsWilliam cycle
Williamsmith
cycle
A 80 character of covalent metal/non-metal metal/metal
A 82
A steel bar 50mm in diameter and 2m long
is surrounded by a shell of cast iron 5mm
thick. Compute the load that will compress
the combined bar a total of 0.88mm in
length of 2m. For steel E = 200GPa, for cast
iron E = 100GPa
291kN 240kN
83
A concentration of a 2.45 M aqueous
solution of methanol (CH3OH) is 0.976
g/mL. What is the molarity of the solution?
The mass of methanol is 32.04 g.
2.73 1.87
84How many constant are there in
Strobridge Equation of State.13 14
A 87
A machine originally costing P200,000 is
used for 10 years, its life span. Find the
book value if the salvage value is P20,000.
In 5 years?
43648 59425
B 88 Which of the following must be covalent? F2 Cs2O
A 88What do you call the additional cost. "Go-
no-go"increment cost fixed cost
B 89 Which of the following is made up of
molecules?CaBr2 KBr
91When element reacts their atoms combine
in1:1 ratio
arbitrary
proportion
92Antoine Lovine…, "53 elements", which of
the ff shows that lime is not an element
lime reacts in
water
generating a
large amount of
it
lime melts at a
frequency of
2572°C
B 93 Smoke is an example of aheterogenous
mixture
homogenous
micture
B 94
Vanillin contains 63.15% C, 5.30% H and
31.55% O whether it is extracted from
vanilla beans, synthesized chemically from
clove oils, or extracted from wood pulp
wastes. Vanillin is most likely to be
a heterogenous
mixture of
elements
a homogenous
mixture of
elements
B 95
The meteorite ALH84001 contains tiny
bubbles of gas trapped in the rock. The
chemical composition of the gas in these
bubbles matches the composition of the
Matian atmosphere as determined by
Viking spacecraft in the 1970’s. The
meteorite is an example of a/an
heterogenous
mixture
homogenous
micture
B 97What is an extensive property of a coffee
in a mug?
B 98 What is an example of physical, extensive
98
In the iron-iron carbide diagram, which
alloy in its solid phase contain more than
2% of carbon?
steel cast iron
A 99Intermetallic compound iron carbide is
called?austenite ferrite
A 100
Use to strengthen the elastic limit and
ultimate strength of a steel without
reducing its ductility.
phosphorus manganese
Suppose you want to store to store 1J of
electron potential energy in a volume of
1cu.m. in vacuum. What is the magnitude
of the electric field
475mV/m 225TV/m
sound intensity at 15 m 0.834Wb/m2, at
0.314Wb/m2. What is the distance
What is the speed of longitudinal waves in
lead rod?1.1 x 10^3 m/s 1.2 x 10^3 m/s
The wavelength of the redlight in a helium-
neon sensor is 633nm in air but 474nm in
a aqueus humor inside our eye. Comput
the speed of light
2.25 3.25
mcΔT, 50 kg, 0.45 kg/°C, 80, 0.5m3,
4.18kg/°C, 25. If steel = 200GPa, Iron =
100GPa, 83GPa
BSpecific volume is the volume of a
substance per mass. Specific volume is
a physical,
intensive
property
a chemical,
intensive
property
B
Sulfur Hexaflouride (SF6) is a colorless,
odorless acid unreactive compound.
Calculate the pressure (in atm) for 1.82
moles of gas with volume of 5.43L at 45°C
6.75 7.75
What is the packing factor of BCC? 68% 74%
A silicon diode is used as IC for
microcomputer with a mass of 5.68 g. How
many atoms are there?
5.6 x 10^-3 2.02 x 10^-10
25593
On a day when the partial pressure of
water vapor remains constant, what
happens as the temperature rises?
the relative
humidity
increases
the relative
humidity
remains
constant
25613
An ideal gas is maintained at constant
temperature. If the pressure on the gas is
doubled, the volume is
increased
fourfolddoubled
The scattering of light through a colloidal
substance
Calculate the ratio of the rate of diffusion
of hydrogen
to the rate of diffusion of oxygen. How fast
does hydrogen
diffuse than oxygen? Given: Density of
oxygen is 0.0899
g/L and the density of oxygen is 1.43 g/L.
1 2
An object in a string is whirled in horizontal
circular motion. What will happen to the
acceleration if you double the length?
P1=15 atm, V1=12 L, T1= 20 degC, V2=85
L, T2=35 degC. Find P2.
25614
If the Kelvin temperature of an ideal gas is
doubled, what happens to the rms speed
of the molecules in the gas?
increases by a
factor of 2
increases by a
factor of 4
A 2 ft section of aluminum solid is placed
end to end in front of the door. What gap
is needed to raise to 55degC?
18m 21m
Minimum angle at which light will strike
the interface of two medium
Angle of
incidence
Angle of
reflection
It is the energy change accompanying the
number of atoms in release of electrons?fission bingling energy
CPE units awarded in finishing a doctoral
degree10 20
26898What is the mass of electron travelling at
half the speed of light?2.31E-30 KG 1.56E-31 KG
The Concorde is flying at Mach 1.75 at an
altitude of 8000 m, where the speed of
sound is 320 m/s. How long after the plane
passes directly overhead will you hear the
sonic boom? 19.5 s 20.5 s
A tornado warning siren on top of a tall
pole radiates sound waves uniformly in all
directions. At a distance of 15.0 m the
intensity of the sound is 0.250 W/m2. At
what distance from the siren is the
intensity 0.010 W/m2?
75 74
blue crystalline
The average resistance of a dry adult
human body is approximately: 10000 ohms 100000 ohms
According to Philippine, What is a binary
compound
A solid steel shaft is not to
twist through more than 3
degrees in a 6 m length when
subjected to a torque of 12
kN.m. What maximum shearing
stress is developed? Use
G=83GPa.
41.3 MPA
It is a product of the
weathering of complex
silicates, particularly of
feldspars which are abundant
minerals.
clay chalk
The first stage in the heat removal during
quenching is ____
vapor blanket
stage
___ is the process by which the carbon
content of the steel is increasedcarburising
The condition of equilibrium of a body will
remain unchanged if a force acting at a
given point of the rigid body is replaced by
a force of the same magnitude and same
direction, but acting at a different point
but having the same line of action is
known as __________.principle of
transmissibility
c d answer
hoop stress ultimate stress hoop stress
1 lux 1 phot 1 lux
3.7x10^19 1.69x10^16 3.7x10^10
Roentgen Sievert Roentgen
four-times halved doubled
Krypton Uranium Uranium
gamma decay beta-plus decay
1.32 1.76 1.64
1 lux 1 phot 1 lux
10000 J 800 J 1400 J
Rabz-Eccles
energyClaussius energy Gibbs free energy
biochemical
energyfission electronic affinity
Aufbau's
principleRaoult's Law Raoult's Law
Recruitment Recruitment
244m/s
Pedion Spheroid Pedion
35.85% 64.15% 64.15%
concave and
convexlens and mirrors convex
Hypothesis
Wilson cycle Wilson cycle
non-metal/metalnon-metal/non-
metal
non-metal/non-
metal
192kN 420kN
2.81 2.98
15 16 16
65536 70923
KBr NaF F2
opportunity cost variable cost increment cost
ClBr NaBr ClBr
simple whole
numbers (one
more is possible)
simle whole
numbers (unique
in per pair of
elements)
simple whole
numbers (one more
is possible)
When a certain
soft metal is
burnt in oxygen
lime is produced
lime and carbon
dioxide are
produced when
loadstone is
tasted
When a certain soft
metal is burnt in
oxygen lime is
produced
binary
compoundelement
hererogenous
mixture
a compounf of C,
H and O
a solution of C, H
and O
a compounf of C, H
and O
binary
compoundelement
heterogenous
mixture
alpha ferrite graphite cast iron
cementite pearlite cementite
sulfur silicon silicon
336mV/m 113Tv/m
1.3 x 10^3 m/s 1.4 x 10^3 m/s 1.2 x 10^3 m/s
3.00 1.25 2.25
a chemical,
extensive
property
a physical,
extensive
property
a physical, intensive
property
8.75 9.75 8.75
68%
1.22 x 10^20 2.22 x 10^20 1.22 x 10^20
the air would
eventually
become
saturated
the relative
humidity
decreases
the relative
humidity increases
decreased by a
quarterreduced by half reduced by half
Tyndall effect Tyndall effect
3 4 4
decrease to 1/2 decrease to 1/2
2.22 atm 2.22 atm
none of the
above
increases by a
factor of square
root of 2
increases by a
factor of square
root of 2
18in 31in 18in
Angle of
diffractionCritical Angle Critical Angle
biochemical
changeelectron affinity electron affinity
30 45 45
1.61E-31 KG 1.05E-30 KG
21.5 s 22.5 s 20.5 s
77 76 75
compound
100 ohms 1000000 ohms 1000000 ohms
NaBr NaBr
clay
carburising
principle of
transmissibility
# Question A
21 word coined by George Devol Unimate
22SPI built and tested a mobile robot with vision
capabilityUnimate
23 The Tomorrow Tool T3
24 which is not part of Asimov's three laws
the robot must take the job of a
human being as long as it doesn't
make the human lazy
25
The acronym SCARA stands for Selective
Compliance Assembly Robot, a particular
design developed in the late 1970's by
Prof. Hiroshi Makino
26 PUMAProgrammable Universal Machine
for Assembly
27 what does anthropomorphic mean similar to humans
28Anthropomorphic robots are used in painting
because they aremore maneuverable
29
Invented texfile machine which operated by
punch card. The machine is called
programmable 100m
Joseph Jacquard
31Any device that is programmed to produce
automatic motion. Mostly remote controlled.medical robot
45
When the insulator is compared to the
semiconductor (a) which one requires the
least energy level to move an electron and (b)
from which point in the energy elevel does
the electron leave in its travel to the
conduction band?
(a) semiconductor (b) valence band
47 Volt-Coloumb is a unit of energy
48
Work equals 136 J is expended in moving
8.5x10^18 electrons between two points in
electric circuit. What is the potential
difference between two points?
100 V
49
In RC circuit, the capacitor charge is 2V at the
end os 5 time constants. What is the voltage
across the resistor at 3 time constant
discharge?
0.99 V
51 600 At, 2x10^6 At/Wb. Find Wb 30x10^-6
52 50 V, 120 C/min, find J/sec. 100 Joules / second
53 106.2812 |-18 deg.
54 1.215 MJ
55 28 V
57 lower resistance
59 Magnets are stored in pairs in order toprovide complete path of magnetic
flux
61 coupling coefficient L1 = 80uWb; L2 = 60uWb 0.75
63 90 deg. hall effect
64 a general law involving distrubution of
charges in any closed surface Gauss' Law
68 Major carriers in an N-type material electron
70 electron
98 eddy current
# Question Answer
1 capacitive susceptance positive imaginary
2 total opposition to current flow impedance
3vector pointing "southeast" in the GB plane
would indicate:
conductive and inductive
susceptance
4 not an example of true power
product of rms ac through a
capacitor and the rms voltage
across it
5 should be minimized in an RF transmission line the line loss
6 does not increase loss in a transmission line reducing power output of source
7 phase angle is equal to arctan X/R
8 in a household circuit, the 234-V power has: three phases
9 autotransformer consists of a single tapped winding
10The shell method of transformer winding:
provide maximum coupling
11transformer has secondary-to-primary turns
ratio of 0.167a step-down unit
12disadvantage of MOS components is the fact
that
they can be easily damaged by
Static Electricity
13 to conduct, how must a photodiode be biased reverse biased
14when pn junction is forward biased,
conduction will not occur unless
applied voltage exceeds forward
breakover voltage
15does not affect the junctiona capacitance of a
diodethe phase of an applied ac signal
16 the capacitance of a varactor varies with reverse voltage
17
you want circuit to be stable with a vaiety of
amplifier impedance conditions. You might
consider a coupling using:
an optoisolator
18 emission of energy in an IRED is caused byelectron energy-level changes
within atoms
19transient suppression is of importance mainly
because it minimizes risk ofdiode failure
20configuration noted for its stability in RF
power amplifierscommon base circuit
30
robot arm that moves along three
independent axes, each of which is straight
and perpendicular to the other two
Cartesian coordinate geometry
32 circuit has an admittance of Y = 0.2 + j0.6 capacitive
33
a 6 ohm resistor is connected in series with a
capacitive reactance of 8 ohm. If the supply
voltage is 200V, what is the power consumed
by the circuit
2400 W
34
a 100m long wire with a cross-sectional area A
= 10^(-3) m^2 has a resistance of 10 ohm.
Determine resistivity of wire
10^(-4) ohm-meter
35series ac-circuit with frequency more than
resonant frequency behave asinductive
36line frequency of a parallel ac-circuit is less
than resonant frequency, circuit behaves asreactive
37characteristics of current in series R-L-C circuit
at resonanceit is at maximum
38cause of minimum Q on a single-tuned LC
circuitincreased shunt resistor
39material which possess very high
permeabilitiesferromagnetic
40relative permeability of a paramagnetic
substanceslightly greater than 1
41 output of four lead acid cells 8.4 V
42silver-cadmium cell has nominal open-circuit
voltage of1.05 V
43Generation of voltage in a generator can only
happen when?
there is a relative motion between
conducting wires and magnetic
lines of force
44 two essential parts in rotating generatorselectro/permanent magnets and
armature winding
46insulation resistance can be best defined as
ability of insulating material to resist current leakage
50primary reason why carbon brushes are
preferred over copper brushes in dc motorsthey produce less arcing
56 maximum voltage output from voltage divider equal to the supply voltage
58 of the following, the best conductor is copper
60direction of magnetic field around a vetical
conductor when current flows upwardclockwise
62electrstatic fields have what effect on: free
electrons; bound electrons
attracts them to positive charges;
distorts their orbits
65
For maximum power transfer between
circuits, what impedance relationship should
there be between the two circuits?
The output impedance of circuit
number one should be equal to the
input impedance of circuit number
two
66
For maximum current transfer, what should
be the relationship of input impedance to
output impedance of previous stage
lower than
67insulation resistance can be best defined as
ability of insulating material to resist current leakage
69when you work on synthetic insulated wiring,
what safety precaution must be observed?
avoid breathing vapors when
insulation is heated
71what is the common name for enamel
insulated wiremagnet wire
72when multiconductor cables are spliced, why
are splices staggeredto reduce overall size of joint
73conductor protection are normally used for
shipboard wiringlead sheathing and rubberized tape
74
when heat-shrinkable tubing is used, what
max temperature to which wire should be
subjected
300 deg. F
75avalanche voltage is routinely exceeded when
a P-N junction acts as avoltage regulator
76why is a lockwasher not used with an
aluminum terminal
the washer will gouge the lug and
cause deterioration
77 what is meant by the term "tinning"coating the material to be soldered
with a light coat of solder
78for which of the following reasons are
conductors laced togethereach of the above
79why is a lacing shuttle used when conductors
are laced in bundles
it helps prevent the cord or tape
from fouling
80which meter movement will measure either
ac or dc without the use of a rectifierelectrodynamic
81ammeter measures various ranges through
addition of
shunt resistor in parallel with the
meter movement
82how is the effect that an ammeter produces in
a circuit kept to a minimum
by ensuring that meter resistance
is low compared to circuit
resistance
83which of the following methods is used to
dampen a meter
incorporate an airtight chamber
containing a vane
84how does an ammeter affect circuit being
measured
it acts as a resistance in series and
lowers circuit current
85
when current in a conductor is measured
without conductor being disconnected, which
of following meters could be used
hook-on voltmeter
86 fuse voltage rating isthe maximum voltage across a fuse
that will not jump the open fuse
87total number of main components in a circuit
breaker5
88maximum number of different single-pole,
single-throw switch positions possible2
89selective tripping is used to accomplish which
of the following purposes
to isolate faulty circuit without
affecting other circuits
90
control of a circuit requiring a temporary
actuation signal is provided by which of the
following switches
momentary
91 ohmmeter
92 a solenoid is commonly used in a starter for a motor vehicle
93
if a relay is hermetically sealed with an
opaque cover, which of the following methods
should be used to determine whether the
relay is operating
remove cover and visually observe
relay contacts when relay is
activated
94
the magnetic field surrounding a straight
conductor is what shape; is in what position
relative to the conductor
concentric circles; perpendicular
95
when a magnetic field moves through a
stationart conductor, the electrons in orbit are
affected in what manner
they are dislodged from orbit
96
when source voltage is removed from a
current-carrying conductor, a voltage will be
induced in the conductor by which of the
following actions
collapsing magnetic field
97
what term applies to power loss in an iron
core inductor due to the curent induced in the
core
hysteresis loss
99
if a coil is wound in layers, its inductance will
be greater than that of a similar single-layer
coil because of higher
flux linkage
100
the output voltage of an elementary
generator is coupled from the armature to
brushes by what devices
slip rings
B C D Answer
Universal
AutomationCybernetics Shakey Universal Automation
Universal
AutomationCybernetics Shakey Shakey
T3
the robot must take the job
of a human being as long as
it doesn't make the human
lazy
George Devol Isaac Asinov Isaac Newton Prof. Hiroshi Makino
Programmable
Universal Machine
Arm
Programmable Universal
Machine for Assembly
similar to humans
more maneuverable
Joseph Jacquard
educational robot show robot hobbyist robot hobbyist robot
(a) insulator (b)
valence band
(a) semiconductor (b)
forbidden band
(a) insulator (b)
forbidden band
(a) semiconductor (b)
valence band
energy
85.36 V 75.36 V 90 V 100 V
19 V 20 V 0.03 V 0.99 V
300x10^-6 300x10^-6
100 Joules / second
106.2812 |-18 deg.
1.215 MJ
28 V
lower resistance
provide complete path of
magnetic flux
0.75
hall effect
Coulomb's Law Oersted Law Tesla Law Gauss' Law
electron
electron
eddy current
ID Comment
8537
5064
8551
8559
8568
8569
8565
8590
8592
8586
8582
8685
4895
8614
8617
8628
8634
8636
8653
8670
8868
10759
10747
10483
10771
10772
10776
10767
10563
10564
11238
11239
11254
11255
4484
11299
8348
8274
12676 change answer sa interactive
4329
4996
4997
4484
4491
4498
4505
4499wire braid armor and
nonmagnetic steel tape
4513
8616
4516
4520
4542
4545
4361
4368
4366
4358
4365
4402
4414
4434
4448
4440
4450
4460
4462
place your finger on the
cover and feel relay contact
movement
4250
4292
4298
4324
4310
4561
ID No. Set Q# Question a b
A 42The frequency of the horizontal time base
is _______?
B 43 What is the first active earth satellite? Sputnik I Explorer I
9962 B 44 Indicate the false statement
impulse noise
voltage is
independent of
bandwidth
HF mixers are
generally noisier
than HF
amplifiers
A 45The frequency of the field timebase is
_____?25 Hz 50 Hz
9986 B 47 A piston attenuator is a Vane attenuatorWaveguide below
cutoff
9987 B 48Cylindrical cavity resonators are not used
with klystrons because they have
a Q that is too
low
a shape whose
resonant
frequency is too
diffcult to
calculate
A 49
It is a technology industry term that
describes a demise of a company caused
by premature announcement of new
product while their predecessor product
are still being sold in the market
Market effect Osbourne effect
A 50 Diameter of a CD 12 cm 13 cm
71 What is the aspect ratio of an HDTV? 16:09 4:03
72
The device responsible for converting the
2-wire line from local system into 4-wire
line to couple with the ISDN equipment.
Network
Terminal
Equipment
Transformer
74What is the other name for beverage
antennalove antenna analogue antenna
75 What is the shortest wavelength of light red green
A 76
The nominal acceleration on the particle at
the rim, 10 ft in diameter of the
acceleration of 1200 ft/s2. Speed?
B 77What type of second detector is used in
AM?mixer PLL
A 77 Farsighted convex concave
B 78
Compute the time it takes to send
message 11CB hexadecimal, to transfer
from 1 network to another using 8-bit
parallel with transfer rate 1ms/transfer
1ms 2ms
B 81 Which has a wider spectral width? laser phototransistor
A 81
Consider the [1 1 0] planes of face
centered silicon crystal with the lattice
constant 4.5 armstrong, determine the
surface density of atoms in each plane.
8.98 x 10^14
atoms/cm^2
7.98 x 10^14
atoms/cm^2
B 82
A field strength of a free space signal is
measured as 2uV/m at a distance of
8500km what is transmitter power?
563W 600W
B 83What is the numerical aperture of a fiber
having an angle of acceptance 20°3.4 0.34
B 88
The field intensity is 25mV/m develops
2.7V in a certain antenna. What is its
effective height?
108 m 108 ft
B 89
The OSI layer provides means for
cooperating presentation entities to
organize and synchronize their dialogue
and to manage data exchange
Session Transport
91
Efficiency of the antenna is 82%. The
radiation resistance is 30ohms. What is the
value of its loss resistance.
6.58 12.52
B 92
It’s the relationship between output
current and input light power for
photodetector
spectral
efficiencydispersion
B 93Class of FM station used for educational
purposesClass D Class A
B 94
It is a special circuit in AM receiver
purposely to quiet a receiver in the
absence of received signal.
squelch circuit VCO
B 95In typical FM receiver, the IF amplifier is
tuned by frequency of ____.
470 kHz +
sidebands
4.7 Mhz +
sidebands
B 97For a transmission line load matching over
a range of frequencies, it is best to use adouble stub balun
B 98 What is simplest form of telephone PSTN PABX
A 99
A broadband television channel transmit
6MHz. What is the minimum signal-to-
noise ratio, in dB, for maximum data rate
that could be carried by the tv using 16 bit
level-coding (ignore noise)?
24dB 12dB
A 100
The American TDMA digital cellphone
standard transmits 24.3 kilo band using
the DQPSK. What is the channel data rate?
4.86 12.15
MPEG for standard digital television and
DVDMPEG 1 MPEG 2
Which of the ff do not refer to a
transmission of signal by varying its
amplitide?
Amplitide Shift
Keying
Digital Amplitude
Modulation
SIM card size 15 x 20 mm 15 x 25 mm
CODEC MPEG 1 MPEG 2
STMSynchronous
Transfer Mode
Synchronous
Transport
Module
In broadcast TV channel with a bandwidth
of 6MHz, what is the minimum permissible
signal to noise ratio in dB for the maximum
data rate that could be carried to the TV
channel using 16 level code (ignore noise)
12 24
Which of the ff are being added to a digital
signal to help the receiver to detect the
start and end of frame bits
Parity check bits Stop bits
Wifi has a typical range of a few hundred
meters but wimax can have a range of up
to?
10 mi 20 mi
There are three mandatory codecs for a
player which includes H.264, VC-1 and?MPEG 1 MPEG 2
Translating pixels integer into 8-bit
unsigned informationQuantizer Encoder
Maximum capacity of CD is 400 Mb
Bluetooth maximum range at 20dB 10m 50m
First passive satellite transponder
14080 Indicate the false statement
The noise
generated in a
resistance or the
resistive
component of
any impedance is
random
random noise
power is
proportional to
the bandwidth
over which is
measured
Frequency hopping used for bluetooth spread spectrum direct sequence
13919
A ship to ship communications system is
plague by fading. The best soultion seems
to be the use of
a more
directional
antenna
a broadband
antenna
Gourp built for bluetooth composed of
ericson, ibm, intel, nokia and toshiba….3GPP SIG
IEEE specification for wireless LAN 802.3 802.14
In data communications, coaxial cable RG-
11 is used in what applicationIBM 3270 Thin ethernet
Wimax used OFDM which provides data
rates up to75 mbps 85 mbps
Satellite that provides service within a
single countryDOMSAT COMSAT
Theoretical maximum downstream
transmission speed of ADSL16 mbps 32 mbps
In digital communication, it refers to
pattern showing all possible combinations
of amplitude and phase for a signal. What
is it?
State DiagramTransistion
Diagram
Which of the following is not used in data
transmission varying of the amplitude of
the transmitted signal
Amplitude Shift
Keying
Digital Amplitude
Modulation
error due to themismatch between the
exact value of the analog signal to the
closest available quantizingstep in a digital
coder
quantizing error message error
bits added at the beginning and end to for
synchronizationframing bits start bits
the absorption od a radio wave is
dependent on
The North America has a baud rate of
24kbaud, QPSK. Find the bitrate?13 29
The TV has a bandwidth of 6 MHz for a 16
bit level code. What is the S/N ratio? 26db 28db
For a given QPSK, what is the bandwidth
given a frequency of 6MHz?3 MHz 6 MHz
Why are open wire lines still used in
Telephone System?
it has a wide
bandwidth
used in
multiplexing
The phase relationship between signaling
elements for BPSK is the optimum
signaling format and occurs only when two
binary signal levels are allowed and when
one signal is exact negative of the other.
Phase
ReferencingCarrier Recovery
Affected by the distance between the
listener and the source and its intensity
varies inversely with the square of this
distance
Volume Bass
The tendency of high-frequency
alternating
current to travel along the surface of a
conductor; the high-frequency reactance is
lower along the outside than at the center
of a conductor.
skin effect
A directional coupler with three or more
holes is sometimes used in preference to
the two-hole coupler
to increase
bandwidth of the
system
Bluetooth usesfrequency
hopping
Bluetooth uses ISM band
c d Answer ID
Echo Moon Sputnik I 14167
Thermal noise is
independent of
the frequency at
which it is
measured
Industrial noise
usually of the
impulse type
impulse noise
voltage is
independent
of bandwidth
9962
100 Hz 625 Hz 50 Hz
Mode filter Flap attenuatorWaveguide
below cutoff9986
too heavy losses
harmonically
related resonant
frequencies
harmonically
related
resonant
frequencies
9987
Hall effect MAC effectOsbourne
effect
14 cm 15 cm 12 cm
1.68:1 both a and c 16:09
Terminal Adapter Hybrid
Network
Terminal
Equipment
eto sagot
na
pinakita sa
perc pero
lam ko
terminal
adapter
wave antenna long antenna wave antenna
yellow blue 13248
77.46 ft/s
lattice diode diode
convex
3ms 16ms 2ms
ILD LED LED
6.98 x 10^14
atoms/cm^2
1.10 x 10^14
atoms/cm^2
6.98 x 10^14
atoms/cm^2
963W 1000W 963W
0.94 0.364 0.34
5 m 9.25 m 108 m
Physical Application Session
7.7 6.14 6.58
Quantum
efficiencyresponsivity responsivity
Class B Class C Class D
AGCanti-twinkler
circuitsquelch circuit
8.9 Mhz +
sidebands
10.7 Mhz +
sidebands
10.7 Mhz +
sidebands
broadband
directional
coupler
single stub of
adjustable
position
double stub
POP POTS POTS
48dB 96dB 24dB
9.72 19.44 12.15
MPEG 3 MPEG 4 MPEG 2
Amplitude
ModulationOn-Off Keying
Amplitude
Modulation
20 x 25 mm 25 x 35 mm 15 x 25 mm
MPEG 3 MPEG 4 MPEG 2
Synchronous
Transport
Module
48 96 24
Start bits Framing bits Framing bits
30 mi 40 mi 30 mi
MPEG 3 MPEG 4 MPEG 2
Vocoder
Discrete
Cosine
Transform
800 Mb 1G 650 Mb
100m 500m 100m
moon moon
all formula to
random noise are
applicable only to
the value such
noise
a random voltage
across the
resistor does not
exist
a random
voltage across
the resistor
does not exist
14080
spread
spectrum
space diversityfrequency
diversity
frequency
diversity
ASG UMTS SIG
802.11x 802.11b 802.11b
CATV systems Thick ethernet Thick ethernet
95 mbps 105mbps 85 mbps
INTELSAT ARABSAT DOMSAT
64 mbps 8 mbps 16 mbps
Trellis DiagramConstellation
Diagram
Constellation
Diagram
Amplitude
ModulationOn-Off Keying
Amplitude
Modulation
quatizing errorfoldover
distortionaliasing
stop bits framing bitsnone of the
above
their
frequency
38 48 48
30db 24 db 24 db
12 MHz 1 MHz 3 MHz
It is not
economical to
replace it
both A and C
It is not
economical to
replace it
Squaring LoopAntipodal
Signaling
Antipodal
Signaling
Treble Loudness Loudness
skin effect
to increase
bandwidth of
the system
frequency
hopping
ISM band
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