tech mecha's video: Basic Heat Transfer Interview Questions and Answers

Basic Heat Transfer Interview Questions and Answers Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, and thermal radiation. We are going to discuss the basic heat transfer questions and answers .Which are helpful for interviews, government exams, gate and other competitive exams, and also you get the previously studied concepts revision by watching these video. Don't forget to subscribe our channel and like our video. Let’s starts the video. Following question are discussed in video: Question Number 1: What is meant by dry bulb temperature? Answer: The temperature recorded by the thermometer with a dry bulb. The dry bulb thermometer cannot affect by the moisture present in the air. It is the measure of sensible heat of the air. Question Number 2: What is meant by wet bulb temperature? Answer: It is the temperature recorded by a thermometer whose bulb is covered with cotton wick (wet) saturated with water. The wet bulb temperature may be the measure of enthalpy of air. WBT is the lowest temperature recorded by moistened bulb. Question Number 3: Difference between sensible heat and latent heat? Answer: Sensible heat is the heat that changes the temperature of the substance when added to it or when abstracted from it. Latent heat is the heat that does not affect the temperature but change of state occurred by adding the heat or by abstracting the heat. Question Number 4: Difference between Relative humidity and specific humidity? Answer: Relative humidity: It is defined as the ratio of partial pressure of water vapor in a mixture to the saturation pressure of pure water at the same temperature of mixture. Specific humidity: It is defined as the ratio of the mass of water vapor in a given volume to the mass of dry air in a given volume. Question Number 5: Differentiate absolute humidity and relative humidity? Answer: Absolute humidity is the mass of water vapor present in one kg of dry air. Absolute humidity is expressed in terms of kg/kg of dry air. Relative humidity is the ratio of the actual mass of water vapor present in one kg of dry air at the given temperature to the maximum mass of water vapor it can withhold at the same temperature. Relative humidity is expressed in terms of percentage. Question Number 6: What is humidification and de humidification? Answer: The addition of water vapor into air is humidification and the removal of water vapor from air is dehumidification. , , , Thanks for Watching. Hit Like & Subscribe Button Don't Forget to Subscribe: Join our community: My you tube Channel Link: For Subscribe: https://www.youtube.com/channel/UCaurfuoWQLvsyufw0R1tzdQ Our blog web site: https://techmecha01.blogspot.com/ ►Join our Face book page: https://www.facebook.com/Mechanical-Engineer-Interview-Question-Answer-259116094543916/ ►Join our face book group: https://www.facebook.com/groups/1788300801457693/ ►Follow us on Twitter: https://twitter.com/DewanRangamati ►Follow us on Google+: https://plus.google.com/u/0/collection/I-OVXE *** ANTI-PIRACY WARNING *** this content is Copyright to Tech Mecha Productions. Any unauthorized reproduction, redistribution or re-upload is strictly prohibited of this material. Legal action will be taken against those who violate the copyright of the following material presented! Subscribe Tech Mecha™ Productions channel for unlimited entertainment. Come on! Like us, discover us and explore us! Basic Heat Transfer Interview Questions and Answer, Top Heat Transfer Interview Questions and Answer, What is meant by dry bulb temperature?, What is meant by wet bulb temperature?, Difference between sensible heat and latent heat?, Difference between Relative humidity and specific humidity?, Differentiate absolute humidity and relative humidity?, What is humidification and dehumidification?, What is dew point temperature?, What is effective temperature?, Difference between degree of saturation and dew point depression?,