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IMU CET


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IMU CET (Physics-Chemistry-Math)

Multiple-Choice-Question-Bank

Way 2 Merchant Navy

By

Subodh Juyal and Techclasses.in

EDUCREATION PUBLISHING (Since 2011)

www.educreation.in


iv


v

About The Author

Subodh Juyal was born on 29 January, 1990 in a village of Uttarakhand. He has

published/ presented a large number of technical and spiritual papers. Tech classes and

Subodh Juyal have authored many books and papers together, including 'Simple Theory

of Physics’(cover back), Topper's Keynotes +1 Physics (e-book), Physics War +2 Theory

Unlock (e-book), imu cet mock test book - level - 1,2 and 3 Kindle Edition, IMU CET

Sample Paper English, Aptitude & G.K. Kindle Edition, etc. He has also participated in

many national and international seminars and conferences.

At present, he is Educational consultant and spiritual lecturer for several years at some of

India’s prominent private institution and colleges.

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Preface And About Book

Imu cet as you know is an exam for taking admission in to the maritime colleges. IMU

Common Entrance Test (CET), which is also known as IMU CET, is conducted by Indian

Maritime University, a government recognized University. The University conducts the

common entrance test for admission in its undergraduate level program in the field of

maritime engineering.

PCM(Physics, Chemistry and Math) has important role in imu cet and all

competitive exams. Even a single question can change your rank, life and future. The

questions on PCM asked in various competitive examinations aren't easy to solve without

having enough practice of the concepts on which the same are based.

The book is especially helpful to students who are preparing for imu cet exam. While

designing this book, the format and the nature of the examination have been taken into

consideration. The book is very helpful to students who want to improve their skills and

get ready to face the imu-cet competitive exams. The book has been designed on the

pattern of class 11th and 12th syllabus as prescribed by NCERT. The book contains

Chapter-wise MCQs which covers all the important concepts and applications required to

crack the mentioned exams.

The book can also be used by students who are preparing for other competitive

examinations. However, we have put our best efforts in preparing this book, but any error

or whatsoever has been skipped out, we will be welcome your suggestions.

At the end we wish, best of luck to our readers.

IMU CET

IMU CET is conducted by Indian Maritime University for admission to various Under

Graduate and Post Graduate Programs offered by IMU and its affiliated Institutes. Indian

Maritime University (IMU) directs Common Entrance Test (CET) for admission to its

undergraduate and postgraduate courses of study. Common Entrance Test (CET) is

common to all UG programs of study.

IMU CET Exam Pattern-

1.Physics, Mathematics, Chemistry, English, General Knowledge and Aptitude at Plus 2

level (CBSE, ISE and State Boards).

2. IMU CET question paper will be online multiple choice types with four options to

choose from, out of which only one is the correct answer.

Subject Marks

Physics-50

Math-50

Chemistry-25


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English-25

General Knowledge-25

General Aptitude-25

Total-200

Note- IMU CET Exam pattern change every year but syllabus of PCM always same. So

any official and update information for imu cet exam.......

Visit- (update news for Marine Carrier)

www.imu.edu.in or

(online mock test, assignment and papers for imu cet exam)

http://www.techclasses.in

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Content List

S. NO. CONTENT PAGE NO.

Physics

1

Unit-1 2

1. Electromagnetism 3

2. Electromagnetic Induction 6

3. Electronics Circuit Design and Semiconductor 10

4. Electrostatic 22

Unit -2 26

5. Atomic Physics 27

6. Bulk Properties of Matter 29

7. Force and Motion 39

8. Vectors and Direction 43

9. Work and Energy 48

10. Circular Motion 52

Unit -3 58

11. Thermodynamics 59

12. Fluid Mechanics 72

13. Engines and Turbines 92

Unit -4 112

14. Most Important Questions for Imu-Cet 113

Unit -5 124

15. Logical Reasoning Physics 125


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Chemistry

131

Unit -1 132

1. Acids and Bases 133

2. Elements, Compounds and Nitrogen Compounds

143

3. Hydrocarbons and States of Matter 150

4. Particles of Matter, Carboxylic Acids and Acyl Compounds

159

5. Periodicity 166

Unit -2 176

6. Methods of purification and Polymerization 177

7. Redox Reactions and Moles and Equations 188

8. Salts and Halogen alkanes 195

Unit-3 202

9. Most Important Questions for Imu-Cet 203

Mathematics 219

Unit -1 220

1. Application of Basic 221

2. Double Angle Identities 223

3. Functions and Limits 225

4. Fundamentals of Trigonometry 229

5. Matrices and Determinants 233

6. Permutations, Combinations and Probability 241

7. Sequences and Series 245

8. Sets, Functions and Groups 248

9. Trigonometric Functions and Graphs 251

10. Trigonometric Identities Multiple 254

Unit-2 258

11. Brain Mapping Question 259

268


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Unit-3

(Most Important Questions for Imu-Cet)

12. Mathematical Reasoning 269

13. Matrices 275

14. Determinant 286

15. Complex number 292

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1 IMU CET (Physics-Chemistry-Math) Multiple-Choice-Question-Bank

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PHYSICS


2 Subodh Juyal

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(Unit – 1) Electromagnetism

Electromagnetic Induction Electronics Circuit Design and Semiconductor

Electrostatic

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1 Electromagnetism

W 1. Electronic device named as cathode ray oscilloscope is known as

A.graph plotting device B.plotting device

C.printing device D.both a and b

2. In e/m experiment, path of electron is made visible by filling

A.H2 at high pressure B.N2 at high pressure

C.H2 at low pressure D.O2 at low pressure

3. Device known as low resistance galvanometer is

A.ammeter B.ohmmeter

C.voltmeter D.odometer

4. Torque of couple is given by ILB x a, in which a is a

A.momentum B.moment arm

C.arm D.moment of inertia

5. Product of force and moment arm is known as

A.potential difference B.voltage

C.torque D.inertia

6. Output of sweep and time base generator will be

A.sinusoidal waveform B.cos waveform

C.saw tooth waveform D.both a and b

7. Charged particle 'q' moving through magnetic with velocity 'V' will have zero

magnetic force when angle is

A.0 B.90

C.180 D.both a and b

8. To make range of voltmeter increased Rh is

A.decreased B.increased

C.unchanged D.remain same

9. Solenoid of length 15 cm has 300 turns. If current flowing through solenoid is 5 A,

then magnetic field inside solenoid will be


4 Subodh Juyal

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A.2.3 x 102 B.1.3 x 102

C.1.1 x 102 D.1.4 x 102

10. Work done by a magnetic field for revolving charged particle q in a circular path

will be

A.fd B.max

C.negative D.zero

11. Moving charge experiences magnetic force because of

A.magnetic flux B.magnetic field

C.magnetic current D.both a and b

12. In moving coil galvanometer pole faces of U-shaped magnet are made concave

A.to make field radial B.to increase field

C.to weaken field D.both a and b

13. In moving coil galvanometer a soft iron cylinder is placed inside coil

A.to make zero field B.to make stronger field

C.to make galvanometer heavier D.both a and b

14. A charged particle will move through region getting undeflected if

A.v = B/E B.v = BE

C.v = E/B D.v = B + E

15. Magnetic force acting on a charge is given by formula

A.q(V - B) B.q(V + B)

C.q(V/B) D.q(V x B)

16. In SI unit of magnetic induction is

A.N/C B.tesla

C.weber D.NmA-1

17. Magnetic field is set up in region surrounding current carrying

A.rod B.wire

C.blog D.plate

18. If a current carrying conductor is placed in uniform magnetic field parallel to

direction of field then force experienced by conductor will be

A.ILBCos B.ILB

C.zero D.ILBSin

19. Electric instrument used to measure current in amperes is known as

A.ammeter B.voltmeter

C.ohm meter D.odometer

20. When an electron is projected at right angle to uniform magnetic field then it will

move along

A.helical path B.circle

C.straight line D.cube

21. When a charged particle moves at right angle to a magnetic field quantity that

changes is

A.momentum B.speed

C.energy D.moment of inertia



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22. Value of magnetic field that will cause a max force of 7 x 10-3N on a 20 cm wire

carrying current of 10 A will be

A.3.5 x 10-3 T B.1.5 x 10-3 T

C.4.5 x 10-3 T D.2.5 x 10-3 T

23. Cathode ray oscilloscope displays graph of waveforms based on

A.current B.voltage

C.potential difference D.temperature

24. A galvanometer of 50 Ω gives full scale deflection with 2 mA current as to convert

it into ammeter range of 10 A is connected with it then shunt resistance will be

A.0.1 Ω B.0.2 Ω

C.0.01 Ω D.0.02 Ω

25. Magnetic field inside a solenoid is

A.zero B.weak

C.uniform D.non-uniform

26. A 20 cm wire carrying current of 10 A with magnetic field 0.30 T having angle

40° will produce force of

A.0.21 N B.0.25 N

C.0.31 N D.0.39 N

27. When charged particle is projected opposite to direction of magnetic field then it

experiences force equal to

A.qvBcos B.qvBsin

C.qvB D.zero

28. If magnetic field in region is given by B = 4i + 8k, then flux passing through a 5

m2 area loop will be

A.20i + 40k Wb B.20 Wb

C.40 Wb D.30 Wb

29. One of following quantities that is not affected by magnetic field is

A.moving charge B.change in magnetic flux

C.current flowing in conductor D.stationary charge

30. Device used to measure potential difference between two points in volts is known

as

A.ohmmeter B.odometer

C.ammeter D.voltmeter

Electromagnetism Answer Key

1.A 4.B 7.D 10.D 13.B 16.B 19.A 22.A 25.C 28.C

2.C 5.C 8.B 11.B 14.C 17.B 20.B 23.B 26.D 29.D

3.A 6.C 9.B 12.A 15.D 18.C 21.A 24.C 27.D 30.D

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6 Subodh Juyal

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2 Electromagnetic Induction

W 1. Michael faraday observed that e.m.f was set up in a conductor in year of

A. 1831 B. 1832

C. 1840 D.1842

2. If motor gets over loaded then its

A.slows down B.backe.m.f decreases

C.backe.m.f increases D.both a and b

3. With alternative current inductor behave like

A.resistor B.capacitor

C.transistor D.wire

4. If metal rod of 25 cm is moving at 0.5 ms-1 in direction perpendicular to 0.25 T

magnetic field, then e.m.f produced is

A.0.12 x 10-2 V B.1.12 x 10-2 V

C.3.12 x 10-2 V D.2.12 x 10-2 V

5. Law that states direction of induced current is always as to oppose change which

causes current is

A.faradays law B.lenzs law

C.newton's law D.motionale.m.f

6. Negative sign of equation of self induction shows that

A.deducee.m.f B.it maintains change

C.it opposes change D.inducede.m.f

7. Practical application of mutual induction is

A.transformer B.DC generator

C.AC generator D.capacitor

8. Negative of rate of change of magnetic flux through coil changing with time is

known as



______________________________________________________________________________________

A.Lenz's law B.newton's law

C.faradays law D.both a and b

9. Transformer is device that works on principle of

A.self induction B.Lenz's law

C.mutual induction D.motionale.m.f

10. Back e.m.f is 120 V when motor is turning at 1680 revolutions/min, and back

e.m.f when motor rotates at 3360 revolutions/min will be

A.220 V B.240 V

C.260 V D.280 V

11. An e.m.f of 5.6 V is induced in a coil while current in coil is decreased from 100

A to 20 A in 0.02 s, its mutual induction will be

A.1.4 x 10-3 B.2.4 x 10-3

C.3.4 x 10-3 D.4.4 x 10-3

12. Converse of process of magnetic effect of current is

A.photoelectric effect B.electromagnetic induction

C.x-rays D.both a and b

13. Energy that is stored in an inductor can be represented by

A.1/2(L2I) B.1/2(LI2)

C. L(I/T) D.LI

14. Quantity that remains unchanged in a transformer is

A.voltage B.current

C.frequency D.both a and b

15. When moving conductor was connected to galvanometer then shown quantity was

A.voltage B.current

C.resistance D.both a and b

16. Induced current can be increased by

A.stronger field B.moving loop faster

C.coil of less turns D.both a and b

17. Turn ratio(r) for a step up transformer is

A.r = 0 B.r> 1

C.r< 1 D.r = 1

18. Changing current in one coil induces e.m.f in another this phenomena is known as

A.e.m.f B.inducede.m.f

C.self induction D.mutual induction

19. A helium nucleus enters perpendicularly in magnetic field B with velocity then

magnetic force acting on it will be

A.2 Bev B.zero

C.evB D.evB/2


8 Subodh Juyal

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20. Lenz law is in accordance with law of conservation of

A.energy B.mass

C.charge D.momentum

21. E.M.F produced in conductor is known as

A.e.m.f B.inducede.m.f

C.deducee.m.f D.both a and b

22. In alternative current generator, AC current reverses its direction

A.T times per second B.f times per second

C.once/sec D.per sec

23. Induced current depends upon speed with which conductor moves and

A.resistance of galvanometer B.voltage of loop

C.current of loop D.resistance of loop

24. A metallic ring is attached to wall of room when north pole of magnet is brought

near ring then induced current in ring is

A.zero B.clock-wise

C.anticlock-wise D.infinite

25. Magnetic field is 0.6T and rate of change of area is 0.8 m2/s when N=1, induced

e.m.f would be

A.0.48V B.0.44V

C.1.2V D.2.1V

26. Alternative current generator is basically based upon

A.amperes law B.Lenz's law

C.faradays law D.coulombs law

27. Transformer is device that is being used in

A.DC circuit B.AC circuit

C.DC motor D.both a and b

28. Whenever magnetic flux linked with a coil changes induced e.m.f in circuit then

e.m.f will be

A.for a short time B.for a long time

C.for ever D.as long as change in flux

29. In system international, unit of mutual inductance is

A.henry B.VsA-1

C.Wb D.both a and b

30. Change of current of 1 As-1 causes e.m.f of 1 V to be equal to

A.1 henry B.1 volt/m

C.1 ampere D.1 joule



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Electromagnetic Induction Answer Key

1.A 4.C 7.A 10.B 13.B 16.D 19.A 22.B 25.A 28.D

2.D 5.B 8.C 11.A 14.C 17.B 20.A 23.D 26.C 29.D

3.A 6.C 9.C 12.B 15.B 18.D 21.B 24.C 27.B 30.A

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10 Subodh Juyal

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3 Electronics Circuit Design

and Semiconductor

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Section-A

1. If 3.5 V is applied to a gate it will accept it as

A.high B.low

C.1 D.0

2. Color of light emitted by LED depends on

A.its forward bias B.its reverse bias

C.forward current D.semiconductor material

3. Ratio of forward voltage and a forward current is known as

A.steradian B.PN junction

C.forward resistance D.forward junction

4. In half wave rectification, during negative cycle of wave diode is

A.reverse biased B.forward biased

C.potential barrier D.both a and b

5. Common type of rectification is

A.half wave rectification B.full wave rectification

C.quarter wave rectification D.both a and b

6. Gate having output 1 only when one of its inputs is 1 is called

A.AND B.NOT

C.OR D.NOR

7. Photo diodes applications include the

A.logic circuits B.automatic switching

C.networking D.both a and b

8. Input resistance of op-amp is



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