--- type: Quiz title: "Thermodynamics Quiz: 34 MCQs for OSSC, CGL, RRB & Govt Exams" canonical: "https://www.easy2crack.com/mcqs/physics/thermodynamics-quiz-TaAo1vkG" subject: physics questions: 34 free: true updated: null tags: ["mcq", "practice", "physics"] --- # Thermodynamics Quiz: 34 MCQs for OSSC, CGL, RRB & Govt Exams 34 multiple-choice questions with answers. ## Q1. The hand burns more by staem comparatively to boiling water, because A. The steam has more latent heat B. Steam sneaked into the body C. The steam has more power D. Steam is gig **Answer:** a ## Q2. The body temperature of a helthy man is A. 37 Celsius B. 98.4 Fahrenheit C. 98.4 Celsius D. 98.4 Kelvin **Answer:** a ## Q3. The noramal temperature of human body on the Kelvin scale is A. 280 B. 290 C. 300 D. 310 **Answer:** d ## Q4. The normal temperature of human body is 98.4F. It's equivalent temperature (inC) is A. 40.16 B. 36.89 C. 35.72 D. 32.36 **Answer:** b ## Q5. In cold countries alcohol is preferred to mercury as a thermometric liquid because A. Alcohol has lower freezing point B. Alcohol is a better conductor of heat C. Alcohol is cheapeer than mercury D. The world production of alcohol is greater than that of mercury **Answer:** a ## Q6. What is absolute zero temperature? A. The starting point of any temperature scale B. Theoretically the lowest possible temperature C. The temperature at which the vapour of any liquid substance is condensed D. The temperature at which all material are in vapour form **Answer:** b ## Q7. Expansion during heating A. Occurs only in soild B. Increases the weight of the material C. Decreases the density of the material D. Occurs at the same rate for all liquids and solids **Answer:** c ## Q8. Transfer of heat by convection can take place in A. Solids and liquids B. Solids and vacuum C. Gases and liquids D. Vecuum and gases **Answer:** c ## Q9. When ice melts, then A. Volume increaes B. Volume decreases C. Mass increases D. Mass Decreases **Answer:** b ## Q10. What is the use of thermostat? A. To measure the temperature B. To increases the temperature C. To maintain the temperature D. To conver heat into electricity **Answer:** c ## Q11. Thermostat is adevice which A. Measures heat B. Measures temperature C. Automatically regulates the temperature of system D. Automatically regulates presure of a system **Answer:** c ## Q12. When a glass rod is placed in steam, its length increases but its width A. Remains unchanged B. Decreases C. Increases D. Becomes irregular **Answer:** c ## Q13. In winter you touch a log of wood and a rod of iron, you will feed rod of iron is colder because A. The heat of rod of iron is less than the heat of log of wood B. In comparison to wood, iron is good conductor of heat C. In comparison to wood, iron is bad conductor of heat D. The rod of iron is heavier than the log of wood **Answer:** c ## Q14. If the temperature of air increases, how would it afect its ability to assume water vapour? A. Decreases B. Increase C. Firstly decrease, then again increase D. Remains constant **Answer:** b ## Q15. In the night wind blows fast, dew is not formed because A. Rate of evaporation is fast B. Mi\oisture in air is low C. temperature is high D. Sky is not clear **Answer:** a ## Q16. Which one of the following conditions occurs when salt is added into the water? A. Boiling point is increased freezing point B. Boiling point is decreased freezing point is increased C. both boiling point and freeze point are devreased D. Both boiling point and freezed point are increased **Answer:** a ## Q17. To keep drinks at the same temperature for quite sometime, the walls of thermos botle are coated with A. Aluminium Paint B. Lead Powder C. Silver Layer D. Mercury Layer **Answer:** c ## Q18. It is more comfortable to wear white cloth in summer because A. They reflect all the heat falling on them B. They radiate heat transferred from the body C. They absorb perspiration D. They are soothing to the eye **Answer:** a ## Q19. The most important function of perspiration is to A. Regulate body temperature B. Regulate body water supply C. Get rid of body poison D. Keep the skin pores clear of dirt **Answer:** a ## Q20. lightning can even burn a tree because it contains tremendous amount of A. Heat energy B. Electric energy C. Chemical energy D. Nuclear energy **Answer:** b ## Q21. A fan produces feeling of comfort during hot weather, because A. Fan supplies cold air B. Our perspiratin evaporates rapidly C. One body radiates more heat D. Conductivity of air increase **Answer:** b ## Q22. In an Earthen pitcher, the water remains cold due to the process of A. Condensation B. Evaporation C. Sublimation D. None of the above **Answer:** b ## Q23. In the season of summer, we experience a humid heat when weather A. Start of summer B. Middle of summer C. Scorching weather D. Humid weather **Answer:** d ## Q24. Xeric condition refers to A. Low temperature B. Low humidity C. High evaporation D. Extreme temperature **Answer:** b ## Q25. The atmosphere exerts enormous pressure on us. But, we do not feel it because A. Our blood exerts a pressure slightly more than that of the atmosphre B. We are used to it C. Our bones are very strong and can withstand the pressure D. The surface area of our head is very small **Answer:** a ## Q26. Food gets cooked faster in a pressure cooker because A. Water starts boiling at a lower temperature due to high pressure B. Water starts boiling at a higher temperature due to high pressure C. Water boils only at 100C but the heat content is higher at high pressure D. Convection currents are set inside the cooker **Answer:** b ## Q27. Maximum temperature inside pressure cooker depends on A. Area of hole on the top and weight kept on it B. Area of hole on the top and food being cooked C. Weight kept on hole at top and food being cooked D. Area of hole on the top only **Answer:** a ## Q28. When water is heated from 0C to 10C It's volume A. Increases B. Decreases C. Does not change D. First decreases and then increases **Answer:** d ## Q29. When a bottle is filled with water and it is freezing the bottle breaks down, because A. Water expands upon freezing B. Bottle shrinks at freezing point C. The temperature outside the bottle is higher than inside D. Water expands on heating **Answer:** a ## Q30. When a piece of ice floating in a glass of water melts, the level of water will A. Fall B. Rise C. Remain same D. Fall or rise depends on the temperature of water **Answer:** c ## Q31. Cloudy nights are warmer compared to clear cloudless nights, because clouds A. Prevent cold waves from the sky from descending on Earth B. Reflect back the heat given off by Earth C. Produce heat and radiate it towards Earth D. Absorb heat from the atmosphere and send it toward Earth **Answer:** b ## Q32. The cloudy nights are warmer than clear nights because A. The cluds prevent radiation of heat from the ground and the air B. Clouds absorb Sunlight during the day and radiate the same in night C. Clouds make the atmosphere damp and generate heat D. The clouds obstruct the movement of air which creates heat **Answer:** a ## Q33. Fruit stored in a cold chamber exhibit longer storage life because A. Exposure to Sunlight is prevented B. Concentration of carbon dioxide in environment is increases C. Rate of respiration is decreased D. There is increase in humidity **Answer:** c ## Q34. Opening the door of refrigerator kept in the room A. You can cool the room to some degree B. You can cool the room to the temperature of regrigerator C. you are warm the room a little D. You can neither cool nor warm the room **Answer:** c --- Source: https://www.easy2crack.com/mcqs/physics/thermodynamics-quiz-TaAo1vkG Site: https://www.easy2crack.com · Machine index: https://www.easy2crack.com/llms.txt · MCP: https://www.easy2crack.com/mcp