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MECHANICAL ENGINEERINGPROBLEMSENGR. VIRNE B. DALISAY

Mobile # 0928-7199790

MATHEMATICSNAME:________________________________________________________________

_________DATE:____________

INSTRUCTION: Encircle the letter that corresponds to the correct answer of yourchoice.

MULTIPLE CHOICE:

1. How many significant digits do the 22.3 have? A. 2 B. 3 C. 4 D. 5

2. The fraction 25/64 is:A. rational number B. irrational number C. complex number D. integer number

3. Mikes bowling score of 167 was 79 less than 3 times his weight. How much doesMike weight?

A. 78 B. 80 C. 82 D. 844. How many significant digits do the 0.046 have?

A. 2 B.3 C. 4 D. 55. Solve for z in the equation: x + 2y z =3, 2x y + 2z = 7, 3x + 2y = 21

A. 1 B. 2 C. -4 D. 46. An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts offthe ground. Determine the distance traveled before takeoff.

A. 17.20 m B. 1720 ft C. 1720 m D. 1,720 in7. What is the acceleration of the body that increases in velocity from 25 m/s to 50 m/sin 8 sec?

A. 2.04 B. 8 C. 4 D. 3.1258. With what speed in miles/hr (1 m/s = 2.23 mi/hr) must an object be thrown to reach aheight of 91.5 m (equivalent to one football field)? Assume negligible air resistance.

A. 42.3 B. 90.1 C. 94.4 D. 1209. Two resistors, 2 ohms and 10 ohms are connected in series and the combination is

connected across the 440V source. Find the voltage across the 2 ohms resistor. A. 24V B. 40V C. 60V D. 73.33V10. A heater is rated at 1000 W. If the load resistance is 10 ohms, find current flowing tothe circuit.

A. 10A B. 12A C. 14A D. 16A11. Find the pressure at the bottom of a 10 m column of water.

A. 69.45KPA B. 72.34KPA C. 83.45KPA D. 98.10KPA

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12. An asset is purchased for P9000. Its estimated life is 12 years, after which it will besold for P1000. Find the book value during the 4 th year if the sum-of-the-years digitdepreciation is used.

A. P6100 B. P4300 C. P5072 D. P469013. Butchok borrowed P20,000.00 and promised to pay equal amount annually for 10

years at 10% compounded annually. Find the annual amount. A. P1083 B. P2974 C. P3254 D. P762314. Find the equation of a circle whose center is at the point (-2 , 3) and its diameter hasa length of 10.

A. (x + 2)2 (y 3)2 = 25 B. (x - 2)2 (y + 3)2 = 25 C. (x - 2)2 (y 3)2 = -2515. Find the center and the radius of the circle whose equation is given by x 2 + 4x + y 2 -8y = 5.

A. c = (2, 4), r = 5 B. c = (2, 4), r = 6 C. c = (-2, 4), r = 5 D. c = (2, -4), r = 5

There are no secrets to success. It is the result of preparation, hard work learning from failure. ~ General Colin Powell