MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following converts mechanical energy into electrical energy? |
| A. | Generator |
| B. | Loudspeaker |
| C. | Steam engine |
| D. | Microphone |
| Answer» B. Loudspeaker | |
| 2. |
What will happen to a person standing on a rotating stool spreading his arms, if he suddenly contracts his arm? |
| A. | His angular momentum decreases |
| B. | His moment of inertia increases |
| C. | His angular momentum increases |
| D. | His moment of inertia decreases |
| Answer» E. | |
| 3. |
Which one of the following instruments is used by the submarine sailors to see the objects on the surface? |
| A. | Periscope |
| B. | Telescope |
| C. | Microscope |
| D. | Gyroscope |
| Answer» B. Telescope | |
| 4. |
What is the ability of a body to return to original shape is called? |
| A. | Semi conductor |
| B. | Stress |
| C. | Elasticity |
| D. | Ductile |
| Answer» D. Ductile | |
| 5. |
What type of bodies do dolphins have that help them in water? |
| A. | Straight |
| B. | Streamlined |
| C. | Slippery |
| D. | Smooth |
| Answer» C. Slippery | |
| 6. |
When velocity of body reduces but not to zero, then such acceleration is called? |
| A. | Deceleration |
| B. | Instantaneous acceleration |
| C. | Positive acceleration |
| D. | Uniform acceleration |
| Answer» B. Instantaneous acceleration | |
| 7. |
Which one of the following planets is said to betwin sisterof the Earth? |
| A. | Jupiter |
| B. | Venus |
| C. | Mercury |
| D. | Mars |
| Answer» C. Mercury | |
| 8. |
How does Air blow ? |
| A. | low temperature to high temperature |
| B. | high pressure region to low pressure region |
| C. | low pressure region to high pressure region |
| D. | high temperature to low temperature |
| Answer» C. low pressure region to high pressure region | |
| 9. |
What exhibits cavitation that is a special application property ? |
| A. | audible sound |
| B. | infrasonic |
| C. | electromagnetic waves |
| D. | ultrasonic |
| Answer» E. | |
| 10. |
What are the Cells which convert solar energy into electrical energy ? |
| A. | Galcanic |
| B. | Photovoltic |
| C. | None of these |
| D. | Rotary |
| Answer» C. None of these | |
| 11. |
How can biomass be converted into fuels ? |
| A. | None of these |
| B. | Direct combustion |
| C. | Fermentation |
| D. | Both |
| Answer» E. | |
| 12. |
Which is Marsh gas ? |
| A. | hydrogen |
| B. | nitrogen |
| C. | ethane |
| D. | methane |
| Answer» E. | |
| 13. |
Why do Stars twinkle? |
| A. | reflection |
| B. | diffraction |
| C. | refraction |
| D. | scattering |
| Answer» D. scattering | |
| 14. |
Which electrical device regulates the current flow under the influence of heat? |
| A. | Thermistor |
| B. | Altimeter |
| C. | Periscope |
| D. | Pyrometer |
| Answer» B. Altimeter | |
| 15. |
Why does the error in a measurement may occur? |
| A. | All of the above |
| B. | Faulty apparat |
| C. | Negligence |
| D. | Inappropriate method |
| Answer» B. Faulty apparat | |
| 16. |
What is a solid having irregular arrangement of molecules is called? |
| A. | Ideal |
| B. | Polymeric |
| C. | Crystalline |
| D. | Amorphous |
| Answer» E. | |
| 17. |
What is the force applied on a unit area of a crystal called? |
| A. | Elasticity |
| B. | Stress |
| C. | Strain |
| D. | Flexibility |
| Answer» C. Strain | |
| 18. |
What will happen if the star having mass greater than five times of the Sun is dead? |
| A. | Nebula will form |
| B. | Neutron star will form |
| C. | White dwarf will form |
| D. | Black hole will form |
| Answer» E. | |
| 19. |
What is the force experienced by an object while moving in a viscous medium called? |
| A. | Retarding force |
| B. | Terminal velocity |
| C. | Viscosity |
| D. | Drag force |
| Answer» E. | |
| 20. |
In vulcanisation, natural rubber is heated with __________ |
| A. | Phosphorous |
| B. | Silicon |
| C. | Carbon |
| D. | Sulphur |
| Answer» E. | |
| 21. |
What does Geyser derives its energy from ? |
| A. | None |
| B. | Sun |
| C. | Moon |
| D. | Earth |
| Answer» E. | |
| 22. |
Which one of the following is the weakest force? |
| A. | Electrostatic force |
| B. | Electromagnetic force |
| C. | Gravitational force |
| D. | Nuclear force |
| Answer» D. Nuclear force | |
| 23. |
What is the angular acceleration of a body experiencing torque is directed ? |
| A. | away from the centre of the circle. |
| B. | along the tangent to the circle. |
| C. | along the axis of rotation. |
| D. | towards the centre of the circle. |
| Answer» D. towards the centre of the circle. | |
| 24. |
Which is the hardest substance available on earth ? |
| A. | Gold |
| B. | Iron |
| C. | Platinum |
| D. | Diamond |
| Answer» E. | |
| 25. |
Which is not optically active? |
| A. | Sodium chloride |
| B. | Tartaric acid |
| C. | Water |
| D. | Sugar |
| Answer» D. Sugar | |
| 26. |
Which one of the following matter form the core of transformer? |
| A. | Steel |
| B. | Soft Iron |
| C. | Aluminium |
| D. | Tin |
| Answer» C. Aluminium | |
| 27. |
Which of the following pair has same direction? |
| A. | Force, velocity |
| B. | Force, displacement |
| C. | Force, acceleration |
| D. | Force, momentum |
| Answer» D. Force, momentum | |
| 28. |
Why does the blood comes out of nose and ear at high altitude ? |
| A. | The blood pressure increases at high altitudes |
| B. | The atmospheric pressure decreases there |
| C. | The percentage of oxygen in the air increases |
| D. | The density of blood decreases at high altitudes |
| Answer» C. The percentage of oxygen in the air increases | |
| 29. |
Which one of the following can convert the alternating current into the direct current? |
| A. | Rectifier |
| B. | Transformer |
| C. | Motor |
| D. | Dynamo |
| Answer» B. Transformer | |
| 30. |
Which of the following are supplementary units? |
| A. | Radian u0026 Steradian |
| B. | Neutron u0026 joules |
| C. | Meter u0026 Kilogram |
| D. | Kelvin u0026 Candela |
| Answer» B. Neutron u0026 joules | |
| 31. |
What does the Moment of inertia depends upon? |
| A. | None of these |
| B. | Distribution of mass about the axis of rotation |
| C. | Mass of the body |
| D. | Both of these |
| Answer» E. | |
| 32. |
When is angular momentum a conserved quantity ? |
| A. | Open system |
| B. | Closed system |
| C. | Conserved system |
| D. | Isolated system |
| Answer» E. | |
| 33. |
What is the tube lights used for lighting purposes in homes called? |
| A. | Mercury light |
| B. | Neon light |
| C. | Laser light |
| D. | Fluorescent light |
| Answer» E. | |
| 34. |
Which element is common to all acids ? |
| A. | oxygen |
| B. | carbon |
| C. | hydrogen |
| D. | sulphur |
| Answer» D. sulphur | |
| 35. |
What is Geothermal energy derived from ? |
| A. | Non-Conventional |
| B. | Power |
| C. | Earth |
| D. | Watt |
| Answer» D. Watt | |
| 36. |
What is resistance of a conductor directly proportional to ? |
| A. | None of these |
| B. | Thickness |
| C. | Type |
| D. | Length |
| Answer» E. | |
| 37. |
How does the pressure cooker work? |
| A. | Steam inside the cooker makes food to cook with ease |
| B. | Heat cannot escape from cooker |
| C. | Low pressure inside the cooker rises the boiling point of water |
| D. | High pressure inside the cooker rises the boiling point of water |
| Answer» E. | |
| 38. |
Which one the following can not be polarized? |
| A. | Ultrasonic waves |
| B. | X-rays |
| C. | Sound waves |
| D. | Radio waves |
| Answer» D. Radio waves | |
| 39. |
When arrow is released from its bow, its energy is transformed from? |
| A. | Chemical energy to P.E |
| B. | Heat energy to K.E |
| C. | Elastic P.E to K.E |
| D. | K.E to elastic P.E |
| Answer» E. | |
| 40. |
What is motion of simple pendulum example of? |
| A. | None of the above |
| B. | Circular motion |
| C. | S.H.M. |
| D. | Rectilinear motion |
| Answer» D. Rectilinear motion | |
| 41. |
When we speak into a microphone, what type of vibrations the diaphragm executes? |
| A. | None of these |
| B. | Resonant |
| C. | Free |
| D. | Forced |
| Answer» C. Free | |
| 42. |
Which of the following is the basis of the scent sprayer ? |
| A. | Carle's law |
| B. | Boyle's law |
| C. | Bernoulli's theorem |
| D. | Archimede's principle |
| Answer» D. Archimede's principle | |
| 43. |
How does Sphygmomanometer measures blood pressure? |
| A. | All of these |
| B. | Statically |
| C. | Dynamically |
| D. | In mixed form |
| Answer» D. In mixed form | |
| 44. |
Which phenomena can be applied to estimate the velocity of stars? |
| A. | All of these |
| B. | Beats |
| C. | Interference |
| D. | Doppler’s effect |
| Answer» E. | |
| 45. |
Which device is used to measure radioactivity? |
| A. | Siemen |
| B. | Parsec |
| C. | Weber |
| D. | Geiger counter |
| Answer» E. | |
| 46. |
Why is it easier to swim in sea water? |
| A. | None of the above |
| B. | atmospheric pressure is highest at the sea |
| C. | Sea water contains salt |
| D. | Density of sea water is higher than the ordinary water |
| Answer» E. | |
| 47. |
When two protons are brought together? |
| A. | Potential energy increases |
| B. | Kinetic energy increases |
| C. | Potential energy decreases |
| D. | Kinetic energy decreases |
| Answer» B. Kinetic energy increases | |
| 48. |
Which of the following cases lies in the broadcast band of FM? |
| A. | HF |
| B. | VHF |
| C. | UHF |
| D. | SHF |
| Answer» E. | |
| 49. |
Who among the following gave the first experimental value of G? |
| A. | Albert Einstein |
| B. | Cavendish |
| C. | Brook Taylor |
| D. | Copernicus |
| Answer» C. Brook Taylor | |
| 50. |
Who was the astronaut to first land on the surface of the moon? |
| A. | Yuri gagarin |
| B. | Robert brown |
| C. | Alekseyevich gagarin |
| D. | Neil armstrong |
| Answer» E. | |