1 btu raises air Study guides, Class notes & Summaries

MCC HVAC MIDTERM EXAM QUESTIONS AND ANSWERS 100% PASS List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. - Correct Answer ️️ -The factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. - Correct Answer ️️ -A refrigerant is used to transfer heat when it c...

MCC HVAC MIDTERM EXAM QUESTIONS AND ANSWERS 100% PASS List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. - Correct Answer ️️ -The factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. - Correct Answer ️️ -A refrigerant is used to transfer heat when it c...

List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. - Answer-The factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. - Answer-A refrigerant is used to transfer heat when it changes states. When liquid refrigerant evaporates into a vapor, heat is absorbed by the...

MCC HVAC MIDTERM EXAM QUESTIONS AND ANSWERS 100% PASS List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. - Correct Answer ️️ -The factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. - Correct Answer ️️ -A refrigerant is used to transfer heat when it c...

Matter exists in what three forms? - solid, liquid, gas What is temperature measured by? Quantity or intensity - Intensity Define British thermal unit (Btu) - Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degree F How much heat is required to raise the temp of 100 lb or water from 70F to 120F - Q=1000lb*(1btu / change of temp) so 1000*(1/ 50) = 50,000 If 750 Btu is supplied to 15lb of water at 72F what will be the resulting temperature? - 1 Btu raises air - 4...

Boiler Operators Exam Correctly Solved At 0 pounds per square inch (psi), how many Btu are necessary to change 1 lb of water at 212 degree Fahrenheit into 1 lb of STEAM - 970 Btu What is Radiation? - A form of heat transfer by waves What is Superheated steam? - Steam at 100 psi and at 400 Fahrenheit Heat quantity that can be felt or measured by a thermometer - Sensible Heat Temperature required to raise 1 lb of water from 32 degree Fahrenheit to 212 degree Fahrenheit - 180 Btu ...

Matter exists in what three forms? - Answer- solid, liquid, gas What is temperature measured by? Quantity or intensity - Answer- Intensity Define British thermal unit (Btu) - Answer- Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degree F How much heat is required to raise the temp of 100 lb or water from 70F to 120F - Answer- Q=1000lb*(1btu / change of temp) so 1000*(1/ 50) = 50,000 If 750 Btu is supplied to 15lb of water at 72F what will be the resulting...

Matter exists in what three forms? - ️️solid, liquid, gas What is temperature measured by? Quantity or intensity - ️️Intensity Define British thermal unit (Btu) - ️️Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degree F How much heat is required to raise the temp of 100 lb or water from 70F to 120F - ️️Q=1000lb*(1btu / change of temp) so 1000*(1/ 50) = 50,000 If 750 Btu is supplied to 15lb of water at 72F what will be the resulting tempera...

HVAC Exam 1 questions & answers 2023Matter exists in what three forms? - correct answer solid, liquid, gas What is temperature measured by? Quantity or intensity - correct answer Intensity Define British thermal unit (Btu) - correct answer Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degree F How much heat is required to raise the temp of 100 lb or water from 70F to 120F - correct answer Q=1000lb*(1btu / change of temp) so 1000*(1/ 50) = 50,000 If 750 Bt...

NATE Exam: Air Conditioning and Heat Pumps, questions with complete top solutions Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% ...