MCQOPTIONS
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MCQOPTIONS
This section includes 1292 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 651. |
Electrostatic precipitator is used to control |
| A. | Water pollution |
| B. | Noise pollution |
| C. | Air pollution |
| D. | Solid waste |
| Answer» D. Solid waste | |
| 652. |
Electrons move around the nucleus in _______ motion. |
| A. | translatory |
| B. | spin |
| C. | orbital |
| D. | vibrational |
| Answer» D. vibrational | |
| 653. |
Electrical Pressure is also called |
| A. | Current |
| B. | Voltage |
| C. | Resistance |
| D. | Power |
| Answer» C. Resistance | |
| 654. |
Electrical Energy is the energy of |
| A. | Protons |
| B. | Neutrons |
| C. | Electrons |
| D. | All the above |
| Answer» D. All the above | |
| 655. |
Electrical burns occur principally because of |
| A. | Radiation pulses of the electricity |
| B. | The heat generated by the flow of electrical current through the body |
| C. | The high energy of electrons |
| D. | All of the above |
| Answer» C. The high energy of electrons | |
| 656. |
Electric power is measured in units of |
| A. | Volt |
| B. | Joule |
| C. | Watt |
| D. | Ampere |
| Answer» D. Ampere | |
| 657. |
Electric Motor converts _____ energy to mechanical energy |
| A. | sound |
| B. | mechanical |
| C. | chemical |
| D. | electrical |
| Answer» E. | |
| 658. |
Electric current is measured by which instrument? |
| A. | voltmeter |
| B. | ammeter |
| C. | barometer |
| D. | sinometer |
| Answer» C. barometer | |
| 659. |
Electric current is equals to?_x005F_x000D_ |
| A. | I = π/t |
| B. | I = Ω/t |
| C. | I = Q/t |
| D. | I = W/t |
| Answer» D. I = W/t | |
| 660. |
Electric charges that are different attract each other. |
| A. | 1 |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 661. |
Echolocation is an adaptation bats use to |
| A. | locate flowering plants |
| B. | hunt insects in flight |
| C. | find warm places for hibernation |
| D. | All of the above |
| Answer» E. | |
| 662. |
Echoes may be heard more than once due to successive or multiple_x005F_x000D_ |
| A. | Rarefactions |
| B. | Reflections |
| C. | Diffractions |
| D. | Refractions |
| Answer» C. Diffractions | |
| 663. |
Echocardiogram is more closely related to |
| A. | Doppler effect |
| B. | Zeeman effect |
| C. | Photoelectric effect |
| D. | Magnetic effect |
| Answer» B. Zeeman effect | |
| 664. |
Earlist thermometerr was developed by |
| A. | Celsius |
| B. | Fahrenheit |
| C. | Kelvin |
| D. | Galileo |
| Answer» E. | |
| 665. |
During uniform motion of an object along a straight line, the ________ remains constant with time. |
| A. | Time |
| B. | Velocity |
| C. | Acceleration |
| D. | Distance |
| Answer» C. Acceleration | |
| 666. |
During which of the following operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum? |
| A. | Acceleration |
| B. | Cruising |
| C. | Idle running |
| D. | Deacceleration |
| Answer» D. Deacceleration | |
| 667. |
During thunderstorm you are travelling in a car. To protect yourself from the lightning you will have to |
| A. | remain in the car |
| B. | get out of the car and lie flat in the ground |
| C. | abandon the car and take shelter under a nearby tree |
| D. | touch the nearest electric pole |
| Answer» B. get out of the car and lie flat in the ground | |
| 668. |
During uniform motion of an object along a straight line, its ___________ remains constant with time |
| A. | acceleration |
| B. | deceleration |
| C. | force |
| D. | velocity |
| Answer» E. | |
| 669. |
During the motion of a projectile fired from the earth surface, _______ |
| A. | its kinetic energy remains constant |
| B. | its momentum remains constant |
| C. | vertical component of its velocity remains constant |
| D. | horizontal component of its velocity remains constant |
| Answer» E. | |
| 670. |
During the free fall of the object, the decrease in potential energy, at any point in its path, appears as an equal amount of increase in _________________._x005F_x000D_ |
| A. | kinetic energy |
| B. | work done |
| C. | heat energy |
| D. | gravitational force |
| Answer» B. work done | |
| 671. |
Due to atmospheric refraction, sunrise is advanced and sunset is delayed by about_x005F_x000D_ Â _x005F_x000D_ |
| A. | 1 minute |
| B. | 2 minute |
| C. | 4 minute |
| D. | 3 minute |
| Answer» C. 4 minute | |
| 672. |
During _____________ motion of an object along a straight line, the velocity remains constant with time. |
| A. | linear |
| B. | translational |
| C. | uniform |
| D. | equilibrium |
| Answer» D. equilibrium | |
| 673. |
Due to an acceleration of 4 m/s2 the velocity of a body increases from 10 m/s to 30 m/s in a certain period. Find the displacement (in m) of the body in that period. |
| A. | 200 |
| B. | 250 |
| C. | 100 |
| D. | 125 |
| Answer» D. 125 | |
| 674. |
Due to an acceleration of 2 m/sq.s the velocity of a body increases from 20 m/s to 30 m/s in a certain period. Find the displacement (in m) of the body in that period._x005F_x000D_ |
| A. | 650 |
| B. | 125 |
| C. | 250 |
| D. | 325 |
| Answer» C. 250 | |
| 675. |
Due to an acceleration of 1 m/s2 the velocity of a body increases from 15 m/s to 20 m/s in a certain period. Find the displacement (in m) of the body in that period._x005F_x000D_ |
| A. | 175 |
| B. | 625_x005F_x000D_ |
| C. | 87.5 |
| D. | 312.5 |
| Answer» D. 312.5 | |
| 676. |
Distance of stars are measured in |
| A. | Galactic unit |
| B. | seller mile |
| C. | Cosmic Kilometre |
| D. | Light year |
| Answer» E. | |
| 677. |
Depth of ocean is measured by |
| A. | Animometer |
| B. | Aerometer |
| C. | Siesmometer |
| D. | Fathometer |
| Answer» E. | |
| 678. |
Density of water is maximum at ______. |
| A. | 12 degree Celsius |
| B. | 8 degree Celsius |
| C. | 4 degree Celsius |
| D. | 0 degree Celsius |
| Answer» D. 0 degree Celsius | |
| 679. |
Device used for the detection and measurement of all types of radiation (alpha, beta and gamma) |
| A. | Geiger counter |
| B. | Polarimeter |
| C. | Calorimeter |
| D. | Radiometer |
| Answer» B. Polarimeter | |
| 680. |
Decibel is the unit of |
| A. | speed of light |
| B. | intensity of sound |
| C. | intensity of heat |
| D. | None of these |
| Answer» C. intensity of heat | |
| 681. |
Cryogenics is a branch of Physics that deal with ______. |
| A. | very high temperatures |
| B. | very low temperatures |
| C. | growth of extremely small crystals |
| D. | growth of extremely large crystals |
| Answer» C. growth of extremely small crystals | |
| 682. |
Curie is the unit of |
| A. | temparature |
| B. | radio activity |
| C. | heat |
| D. | energy |
| Answer» C. heat | |
| 683. |
Definition of Force can be stated from: |
| A. | Newton's second law of motion |
| B. | Newton's first law of motion |
| C. | Newton's third law of motion |
| D. | Newton's law of gravitation |
| Answer» E. | |
| 684. |
Current in a conductor can be increased by |
| A. | increasing the voltage across it. |
| B. | reducing its resistance. |
| C. | both A and B |
| D. | none of the above |
| Answer» D. none of the above | |
| 685. |
Creating realistic sounds in animation is called |
| A. | Geisler |
| B. | Foley |
| C. | Doppler |
| D. | Echoe |
| Answer» C. Doppler | |
| 686. |
Convex mirror is generally used in _____. |
| A. | solar cookers |
| B. | opthalmoscope |
| C. | reflector for head light |
| D. | rear view mirror |
| Answer» E. | |
| 687. |
Cryogenic Engines find applications in |
| A. | Frost - Free refrigerators |
| B. | Sub-marine propulsion |
| C. | Researches in superconductivity |
| D. | Rocket technology |
| Answer» E. | |
| 688. |
Contaminated rags are recommended for disposal in landfills. |
| A. | 1 |
| B. | |
| C. | |
| D. | |
| Answer» C. | |
| 689. |
Convex and concave mirrors are examples of? |
| A. | Plane mirrors |
| B. | Spherical mirrors |
| C. | Inverted mirror |
| D. | Erect mirror |
| Answer» C. Inverted mirror | |
| 690. |
Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength (s) of the following can make visual sensation to a human eye? |
| A. | 200 nm and 500 nm |
| B. | 500 nm and 1000 nm |
| C. | 500 nm only |
| D. | 200 nm and 1000 nm |
| Answer» D. 200 nm and 1000 nm | |
| 691. |
Consider a planet whose mass and radius are both twice the mass and radius of Earth. The acceleration due to gravity on the surface of the planet is 'n' times that on Earth. The value of n is:_x005F_x000D_ |
| A. | 4 |
| B. | 1 |
| C. | 12 |
| D. | 2 |
| Answer» D. 2 | |
| 692. |
Consider the following statements :_x005F_x000D_ 1. There is no net moment on a body which is in equilibrium._x005F_x000D_ 2. The momentum of a body is always conserved._x005F_x000D_ 3. The kinetic energy of an object is always conserved._x005F_x000D_ Which of the statements given above is/are correct? |
| A. | 1, 2 and 3 |
| B. | 2 and 3 only |
| C. | 1 and 2 only |
| D. | 1 only |
| Answer» D. 1 only | |
| 693. |
Consider a hypothetical planet with a mass equal to half that of Earth and radius is one-third that of Earth. If g is the acceleration due to gravity on Earth, the acceleration due to gravity on the planet will be |
| A. | (1/2)g |
| B. | (9/2)g |
| C. | (5/2)g |
| D. | (3/2)g |
| Answer» C. (5/2)g | |
| 694. |
Contact force is another name for _________. |
| A. | Friction |
| B. | Magnetic force |
| C. | Electrostatic force |
| D. | Muscular force |
| Answer» E. | |
| 695. |
Conservation of energy refers to the fact that |
| A. | if you conserve energy you will not be as tired |
| B. | energy cannot be created or destroyed but can be converted from one form to another |
| C. | no chemical reaction is 100 percent efficient |
| D. | the entropy of the universe is always increasing |
| Answer» C. no chemical reaction is 100 percent efficient | |
| 696. |
Cold air is ______. |
| A. | lighter than warm air hence cold air settles down |
| B. | heavier than warm air hence cold air rises up |
| C. | lighter than warm air hence cold air rises up_x005F_x000D_ |
| D. | heavier than warm air hence cold air settles down_x005F_x000D_ |
| Answer» E. | |
| 697. |
Compressions and rarefactions are due to variability of:_x005F_x000D_ |
| A. | magnetic difference |
| B. | ray refraction |
| C. | air pressure |
| D. | temperature difference |
| Answer» D. temperature difference | |
| 698. |
Consider a hypothetical planet whose mass and radius are both half that of Earth. If g is the acceleration due to gravity on the surface of Earth, the acceleration due to gravity on the planet will be |
| A. | g/4 |
| B. | g |
| C. | 2g |
| D. | g/2 |
| Answer» D. g/2 | |
| 699. |
Compressions and Rarefactions are characteristic of |
| A. | Longitudinal waves |
| B. | Transverse waves |
| C. | Both A & B |
| D. | Neither of A & B |
| Answer» B. Transverse waves | |
| 700. |
Circuit breaker usually operate under |
| A. | after D. C. component has ceased |
| B. | transient state of short-circuit current |
| C. | sub-transient state of short-circuit current |
| D. | steady state of short-circuit current |
| Answer» C. sub-transient state of short-circuit current | |