General KnowledgeScience GK 100+ MCQ & Answer Science General Knowledge | page-03 | General Knowledge MCQ And Answer 04/02/2025 DSN MARATHI Last Updated on: 28/10/2025 21. In many countries with cold climates, the municipalities often sprinkle salt on icy roads in winter. A. The Salt inhibits the formation of Ice Crystals B. The Salt lowers the Freezing Point of water C. The Salt raises the freezing Point of water D. The salt provides necessary friction to the tires of the vehicles Answer Option : B 22. Which among the following is measured by an Odometer? A. Pressure B. Height C. Distance D. Velocity Answer Option : C 23. The term ―Isopycnic‖ is most closely defined by which among the following? A. Two places with same atmospheric pressure B. Two liquids with same viscosity C. Two liquids with same density D. Two places with same temperature Answer Option : C 24. Which among the following property of the matter is studied in ―Rheology‖? A. Gravitation B. Viscosity C. Magnetic Properties D. Entropy Answer Option : B 25. Fermi is a unit of which among the following? A. Mass B. Length C. Velocity D. Frequency Answer Option : B 26. Which among the following correctly represents a Parsec? A. 0.326 Light Years B. 3.261 Light Years C. 32.61 Light Years D. 3.026 Light Years Answer Option : B 27. The power we use at Home has a frequency of 60Hz. What would be the period of the sine wave? A. 0.116 seconds B. 0.0116 seconds C. 0.00116 secon D. 0.0016 Microseconds Answer Option : B 28. What do we call the part of the ―DTH Satellite dish‖ that converts the signals from electromagnetic or radio waves to electrical signals ? A. Orthomode transducer (OMT) B. Low-noise block converter (LNB) C. Block upconverter (BUC) D. Parabolic Dish Answer Option : B 29. Which among the following waves are used in the gemstone industry to change white topaz into blue topaz? A. X-Rays B. Gamma Rays C. Alpha Radiation D. Beta Radiation Answer Option : B 30. Which among the following waves are most commonly used in the Night Vision Devices? A. Microwaves B. Infra Red Waves C. Ultra Violet Waves D. Radio Waves Answer Option : B
21. In many countries with cold climates, the municipalities often sprinkle salt on icy roads in winter. A. The Salt inhibits the formation of Ice Crystals B. The Salt lowers the Freezing Point of water C. The Salt raises the freezing Point of water D. The salt provides necessary friction to the tires of the vehicles Answer Option : B
22. Which among the following is measured by an Odometer? A. Pressure B. Height C. Distance D. Velocity Answer Option : C
23. The term ―Isopycnic‖ is most closely defined by which among the following? A. Two places with same atmospheric pressure B. Two liquids with same viscosity C. Two liquids with same density D. Two places with same temperature Answer Option : C
24. Which among the following property of the matter is studied in ―Rheology‖? A. Gravitation B. Viscosity C. Magnetic Properties D. Entropy Answer Option : B
25. Fermi is a unit of which among the following? A. Mass B. Length C. Velocity D. Frequency Answer Option : B
26. Which among the following correctly represents a Parsec? A. 0.326 Light Years B. 3.261 Light Years C. 32.61 Light Years D. 3.026 Light Years Answer Option : B
27. The power we use at Home has a frequency of 60Hz. What would be the period of the sine wave? A. 0.116 seconds B. 0.0116 seconds C. 0.00116 secon D. 0.0016 Microseconds Answer Option : B
28. What do we call the part of the ―DTH Satellite dish‖ that converts the signals from electromagnetic or radio waves to electrical signals ? A. Orthomode transducer (OMT) B. Low-noise block converter (LNB) C. Block upconverter (BUC) D. Parabolic Dish Answer Option : B
29. Which among the following waves are used in the gemstone industry to change white topaz into blue topaz? A. X-Rays B. Gamma Rays C. Alpha Radiation D. Beta Radiation Answer Option : B
30. Which among the following waves are most commonly used in the Night Vision Devices? A. Microwaves B. Infra Red Waves C. Ultra Violet Waves D. Radio Waves Answer Option : B
