MCQS Multiple Choice Question with Answer for General Science – Download PDF Here
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These are most important mcqs on general science asked by JKSSB UPSC AND other state multiple exams. You can revise the mcq of general science for Various exams like FAA, vlw, junior assistant,SI etc. For download ebook you can request to author for the pdf of this article.
PHYSICS
1. An object will continue to accelerate until the resultant force:
A. Becomes zero
B. Is increased continuously
C. Begins to decrease
D. Changes the direction of velocity
Answer: A – Becomes zero
2. What is the momentum of an object of mass m, moving with a velocity v?
A. (mv)2
B. mv2
C. ½ mv2
D. mv
Answer: D – mv
3. According to second law of motion “the rate of change of momentum is directly proportional to……………… applied”
A. Pressure
B. Force
C. Acceleration
D. Torque
Answer: B – Force
4. Rocket works on the principle of conservation of:
A. Mass
B. Energy
C. Momentum
D. Velocity
Answer: C – Momentum
5. The inertia of an object tends to cause the object:
A. to increase its speed
B. to decrease its speed
C. to resist any change in its state of motion
D. to decelerate due to friction
Answer: C – to resist any change in its state of motion
6. According to the third law of motion, action and reaction:
A.always act on the same body
B. always act on different bodies in opposite directions
C. have same magnitude and directions
D. act on either body at normal to each other
Answer: B. always act on different bodies in opposite directions
7. When a body falls freely towards the earth, then its total energy
A. increases
B. decreases
C. remains constant
D. first increases and then decreases
Answer: C – Remains constant
8. Which one of the following is not the unit of energy?
A. joule
B. newton metre
C. kilowatt
D. kilowatt hour
Answer: C – Kilowatt
9. The work done on an object does not depend upon the
A. displacement
B. force applied
C. angle between force and displacement
D. initial velocity of the object
Answer: D- initial velocity of the object
10. Water stored in a dam possesses:
A. no energy
B. electrical energy
C. kinetic energy
D. potential energy
Answer: D – Potential energy
11. The numerical ratio of displacement to distance for a moving object is:
A. always less than 1
B. always equal to 1
C. always more than 1
D. equal or less than 1
Answer: D – equal or less than 1
12. If the displacement of an object is proportional to square of time, then the object moves with
A. uniform velocity
B. uniform acceleration
C. increasing acceleration
D. decreasing acceleration
Answer: B – Uniform acceleration
13. In which of the following cases of motions, the distance moved, and the magnitude of
displacement are equal?
A. If the car is moving on straight road
B. If the car is moving in circular path
C. The pendulum is moving to and fro
D. The earth is revolving around the Sun
Answer: B – If the car is moving in circular path
14. The resistivity does not change if:
A. the material is changed
B. the temperature is changed
C. the shape of the resistor is changed
D. both material and temperature are changed
Answer: C – the shape of the resistor is changed
15.Loudness of sound is determined by:
A. Pitch
B. Frequency
C. Amplitude
D.Time period
Answer: C – Amplitude
16. How many SI units are there?
A. 5
B. 6
C. 7
D. 8
Answer: C -7
17. What is the unit of specific resistance?
A. Ohm -1
B. Ohm-m
C. Ohm -1 m -1
D. Ohm-m2
Answer: B-Ohm-m
18. What is the unit of length used to measure the wavelength of light?
A. Fermi
B. Angstrom
C. Parsec
D. Barn
Answer: B – Angstrom
19. Unit of electric power may also be expressed as
A. volt ampere
B. kilowatt hour
C. watt second
D. joule second
Answer: C – Volt ampere
20. When waves travel, they transmit __________ from one place to another.
A. Energy
B. Mass
C. Both
D. None
Answer: A. Energy
21. The particles of a medium vibrate in longitudinal waves _________
A. Perpendicular to the direction of the wave motion
B. Along the direction of wave motion
C. Opposite to the direction of the wave motion
D. Do not vibrate at all
Answer: B – Along the direction of wave motion
22. Which of the following organisms produces biogas from cow drug sherry in the biogas plant?
A. Aerobic bacteria
B. Anaerobic bacteria
C. Protozoa
D. Fungi
Answer: B- Anaerobic bacteria
23. What are the disadvantages of solar energy?
A large surface area is required collect the solar
B. Daily average of solar energy highly varies from 4 to 7 kwh/m2
C. Hazardous materials are used in the manufacturing of solar devices
D. All of the above
Answer: D – All of the above
24. In a hydropower plant,
A. Electricity is extracted from water
B. Potential energy possessed by stored water is converted into electricity
C. Kinetic energy possessed by stored water is converted into potential energy
D. Water is converted into steam to produce electricity.
Answer: B – Potential energy possessed by stored water is converted into electricity
25. Ocean thermal energy is due to:
A. Energy stored by waves in the ocean
B. Temperature difference at different levels in the ocean
C. Pressure difference at different levels in the ocean
D. Tides arising out in the ocean
Answer: B -Temperature difference at different levels in the ocean
26. A resonating column of air contains:
A. Stationary longitudinal waves
B. Stationary transverse waves
C. Transverse progressive waves
D. Longitudinal progressive waves
Answer: A – Stationary longitudinal waves
27. The relationship between current, voltage and resistance are known as __________ law.
A. Newton’s
B. Ohm’s
C. Coulomb’s
D. Faraday’s law
Answer: B – Ohm’s
28. If current increases then voltage ________.
A. Increases
B. Decreases
C. Remains stable
D. None of the above
Answer: A – Increases
29. The resistivity does not change if:
A. the material is changed
B. the temperature is changed
C. the shape of the resistor is changed
D. both material and temperature are changed
Answer: C – the shape of the resistor is changed
30. The major problem in harnessing nuclear energy is how to
A. Split nuclei
B. Sustain the reaction
C. Dispose of spent fuel safely
D. Convert nuclear energy into electrical energy
Answer: C – dispose of spent fuel safely
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