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 device is used to measure humidity? |
| A. | Hydrometer |
| B. | Hygrometer |
| C. | Psycho Meter |
| D. | Anemometer |
| Answer» C. Psycho Meter | |
| 2. |
Which of the following devices helps to maintain a potential difference across a conductor? |
| A. | Galvanometer |
| B. | Ammeter |
| C. | Voltmeter |
| D. | A cell or battery |
| Answer» E. | |
| 3. |
Which of the following effects is not produced by current?_x005F_x000D_ |
| A. | Chemical effect |
| B. | Contraction effect |
| C. | Heating effect |
| D. | Magnetic effect |
| Answer» C. Heating effect | |
| 4. |
Which of the following devices converts Chemical energy into Electrical energy? |
| A. | Electric heater |
| B. | Electric fan |
| C. | Hair dryer |
| D. | Electric cell |
| Answer» E. | |
| 5. |
Which of the following does NOT contribute to sparkling of diamonds? |
| A. | Total Internal Reflection |
| B. | High Refractive Index of Diamonds |
| C. | Dispersion |
| D. | Low Refractive Index of Diamonds |
| Answer» E. | |
| 6. |
Which of the following device is best suited for measuring the temperature inside metallurgical furnaces? |
| A. | Pyrometer |
| B. | Thermocouple |
| C. | Thermometer |
| D. | Thermistor |
| Answer» B. Thermocouple | |
| 7. |
Which of the following describes an electric motor? |
| A. | Is found in many appliances with moving parts, like a vacuum cleaner or a blender. |
| B. | Changes electric energy to mechanical energy. |
| C. | Uses the interaction between a spinning coil of wire and magnet. |
| D. | Can be powered by a hand crank. |
| Answer» C. Uses the interaction between a spinning coil of wire and magnet. | |
| 8. |
Which of the following definitions describes a physical hazard? |
| A. | The most commonly thought of hazard in construction. This hazard includes radiation, extreme temperatures, noise, and vibration. |
| B. | These hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks. |
| C. | Can be present in dust, fumes, liquids, solids, mists, vapors, or gases of products used at a site or released during a construction job |
| D. | Microorganisms, such as bacteria, fungus, mold, or viruses that can cause illness. |
| Answer» B. These hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks. | |
| 9. |
Which of the following changes when a body performs uniform circular motion? |
| A. | Mass |
| B. | Momentum |
| C. | Speed |
| D. | Direction |
| Answer» E. | |
| 10. |
Which of the following causes adiabatic temperature changes in atmosphere? |
| A. | Deflection and advection |
| B. | Latent heat of condensation |
| C. | Expansion and compression of the air |
| D. | Partial absorption of solar radiation by the atmosphere |
| Answer» D. Partial absorption of solar radiation by the atmosphere | |
| 11. |
Which of the following cannot be used for making lenses? |
| A. | Plastic |
| B. | Soil |
| C. | Glass |
| D. | Water |
| Answer» C. Glass | |
| 12. |
Which of the following can neither be created nor be destroyed? |
| A. | Velocity |
| B. | Power |
| C. | Energy |
| D. | Momentum |
| Answer» D. Momentum | |
| 13. |
Which of the following can do more work? |
| A. | A rotating wheel |
| B. | A moving bullet |
| C. | A speeding stone |
| D. | A raised hammer |
| Answer» C. A speeding stone | |
| 14. |
Which of the following are Mechanical waves?_x005F_x000D_ |
| A. | X rays |
| B. | Radio waves |
| C. | Microwaves |
| D. | Sound waves |
| Answer» E. | |
| 15. |
Which object converts electricity to light? |
| A. | Solar panels |
| B. | Battery |
| C. | Bulb |
| D. | All the above |
| Answer» D. All the above | |
| 16. |
Which one of the following is the value of one nanometer? |
| A. | 10-7Â cm |
| B. | 10-6Â cm |
| C. | 10-4Â Â cm |
| D. | 10-3Â Â cm |
| Answer» B. 10-6Â cm | |
| 17. |
Which must be true for metamorphism to occur? |
| A. | The grain size must become smaller |
| B. | The process must take place underwater |
| C. | The parent rock must be in solid form |
| D. | The parent rock must be igneous |
| Answer» D. The parent rock must be igneous | |
| 18. |
Which motion has magnitude of static frictional force directly proportional to normal reaction? |
| A. | Impending motion |
| B. | Actual motion |
| C. | Both 1 and 2 |
| D. | None of the above |
| Answer» B. Actual motion | |
| 19. |
Which mirror is used as rear view mirror in vehicles? |
| A. | Concave |
| B. | Plane |
| C. | Convex |
| D. | Any of the above |
| Answer» D. Any of the above | |
| 20. |
Which metal is the best conductor of heat? |
| A. | Silver |
| B. | Gold |
| C. | Copper |
| D. | All of the above |
| Answer» E. | |
| 21. |
Which microscope is often used to view metal surfaces? |
| A. | Optical microscopes |
| B. | Scanning tunneling microscopes |
| C. | Electron microscopes |
| D. | None of the above |
| Answer» C. Electron microscopes | |
| 22. |
Which measurement describes the pressure of a gas? |
| A. | 450 mm Hg |
| B. | 315 K |
| C. | 251 g/cub.cm |
| D. | None of the above |
| Answer» B. 315 K | |
| 23. |
Which method of expressing direction is indicated in the illustration? |
| A. | Section |
| B. | Interjuction |
| C. | Intersection |
| D. | None of the above |
| Answer» D. None of the above | |
| 24. |
Which measurement depends on gravitational force? |
| A. | Mass |
| B. | Weight |
| C. | Height |
| D. | All of the above |
| Answer» C. Height | |
| 25. |
Which liquid is the most viscous? |
| A. | Water |
| B. | Diesel |
| C. | Milk |
| D. | Oil |
| Answer» E. | |
| 26. |
Which lenses should be used to correct the defect of astigmatism? |
| A. | Convex lens |
| B. | Bifocal lens |
| C. | Concave lens |
| D. | Cylindrical lens |
| Answer» E. | |
| 27. |
Which law relates to the ideal gas law? |
| A. | P1T1 = P2T2 |
| B. | P1/V1 = P2/V2 |
| C. | P1V1 = P2V2 |
| D. | T1/V1 = T2/V2 |
| Answer» D. T1/V1 = T2/V2 | |
| 28. |
Which law is also called law of inertia ? |
| A. | Newton first law |
| B. | Newton second law |
| C. | Newton third law |
| D. | All of above |
| Answer» B. Newton second law | |
| 29. |
Which is the point from where an azimuth originates? |
| A. | South |
| B. | North |
| C. | East |
| D. | West |
| Answer» C. East | |
| 30. |
Which is the form of energy that does NOT occur while riding a bicycle? |
| A. | Heat energy |
| B. | Kinetic energy |
| C. | Chemical energy |
| D. | Mechanical energy |
| Answer» D. Mechanical energy | |
| 31. |
Which is evidence that supports the dynamo theory? |
| A. | Earth's outer core contains liquid that conducts electricity |
| B. | Earth's core contains a large amount of iron |
| C. | Granite and basalt conduct electricity |
| D. | Convection occurs in Earth's inner core |
| Answer» C. Granite and basalt conduct electricity | |
| 32. |
Which is best used as a sound absorbing material in partition walls ? |
| A. | Stone chips |
| B. | Steel |
| C. | Glass - wool |
| D. | Glass pieces |
| Answer» D. Glass pieces | |
| 33. |
Which is an example of Phototropism? |
| A. | roots of a plant following water |
| B. | plant bending toward the light |
| C. | roots growing into the soil |
| D. | a venus flytrap capturing a fly |
| Answer» C. roots growing into the soil | |
| 34. |
Which is a correct way to measure wavelength? |
| A. | Nearest peak to peak |
| B. | Nearest peak to nearest trough |
| C. | Nearest trough to peak |
| D. | None of the above |
| Answer» B. Nearest peak to nearest trough | |
| 35. |
Which is a common first indicator of an approaching thunderstorm? |
| A. | too hot |
| B. | heavy wind |
| C. | a buildup of dark clouds |
| D. | lightning |
| Answer» D. lightning | |
| 36. |
Which instrument measures AF signal level and noise?_x005F_x000D_ |
| A. | Vectorscope |
| B. | VU meter |
| C. | Q meter |
| D. | Psophometer |
| Answer» E. | |
| 37. |
Which instrument is used to measure humidity?_x005F_x000D_ |
| A. | Pyrometer |
| B. | Hydrometer |
| C. | Hygrometer |
| D. | Calorimeter |
| Answer» D. Calorimeter | |
| 38. |
Which has the lowest albedo? |
| A. | dark surfaces |
| B. | light surfaces |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. light surfaces | |
| 39. |
Which instrument is used for measuring humidity of atmosphere? |
| A. | Barometer |
| B. | Anemometer |
| C. | Thermometer |
| D. | Hygrometer |
| Answer» E. | |
| 40. |
Which glass is used to make spectacles? |
| A. | Crook's glass |
| B. | Potash glass |
| C. | Jena glass |
| D. | Soda glass |
| Answer» B. Potash glass | |
| 41. |
Which elements are malleable and good conductors of electricity? |
| A. | tin and silver |
| B. | iodine and silver |
| C. | tin and xenon |
| D. | iodine and xenon |
| Answer» B. iodine and silver | |
| 42. |
Which electromagnetic wave has the highest frequency? |
| A. | Gamma Rays |
| B. | Radio waves |
| C. | X rays |
| D. | Microwaves |
| Answer» B. Radio waves | |
| 43. |
Which device is used to measure the depth of ocean? |
| A. | Lexometer |
| B. | Nanometer |
| C. | Fathometer |
| D. | Hydrometer |
| Answer» D. Hydrometer | |
| 44. |
Which device is used to limit electric current in a circuit?_x005F_x000D_ |
| A. | Grid |
| B. | Capacitor |
| C. | Fuse |
| D. | Resistor |
| Answer» D. Resistor | |
| 45. |
Which determines the frequency of a sound wave? |
| A. | Amplitude |
| B. | Speed |
| C. | Source |
| D. | Medium |
| Answer» B. Speed | |
| 46. |
Which compound is a nonelectrolyte? |
| A. | C2H6O |
| B. | HCl |
| C. | Na2CO3 |
| D. | NaCl |
| Answer» B. HCl | |
| 47. |
Which compressor is usually used in AC? |
| A. | Centrifugal |
| B. | Rotary |
| C. | Reciprocating |
| D. | Axial |
| Answer» D. Axial | |
| 48. |
Which component of an IED creates an electrical charge? |
| A. | activator |
| B. | fuse |
| C. | explosive |
| D. | power source |
| Answer» E. | |
| 49. |
Which Color has the Longest Wavelength? |
| A. | Violet |
| B. | Yellow |
| C. | Red |
| D. | White |
| Answer» D. White | |
| 50. |
Which color has the highest frequency? |
| A. | Violet |
| B. | Red |
| C. | Indigo |
| D. | Green |
| Answer» B. Red | |