British thermal unit - Study guides, Class notes & Summaries

what is the fire triangle? - Answer- oxygen, fuel, and heat what is the fire tetrahedron? - Answer- oxygen, fuel, heat, and a self-sustained chemical chain reaction what is potential energy? - Answer- stored energy possessed by an object that can be released in the future to perform work what is kinetic energy? - Answer- the energy possessed by a moving object what is the british thermal unit (BTU)? - Answer- the amount of heat required to raise the temperature of 1 pound of water 1 ...

BPI Study Test Questions and Answers 100% Solved What is a BTU? Correct answer British Thermal Unit - the amount of energy required to heat 1 pound of water 1 degrees Fahrenheit Why does warm air rise? Correct answer Warm air is less dense than cool air What is a thermal boundary? Correct answer A line or plane defined by insulation and air barrier What is NOT a goal of air leakage control? Correct answer Meeting code (no code exists for air leakage)

ASVAB MEPS Exam 223 Questions with Verified Answers A radar is designed to report the track of an aircraft every second. If this radar reports 30 tracks in one minute, what percentage of the time did the radar track the aircraft? - CORRECT ANSWER 50% Jerry walked a dog from 6:40 a.m. to 7:30 a.m. one day. If he was paid at the rate of $6 per hour, how much did he earn that day? - CORRECT ANSWER $5.00 A woman is looking for a bigger square office. She finds an office twice the area of he...

British Thermal Unit - Answer a measure of energy, typically noted as the amount of energy needed to raise one pound of water by 1˚ F, raise 1 pint of water by 1˚ F , burn one match Coefficient of Heat Transmission (U-value): - Answer overall rate of heat flow through any combination of materials, used for determining the size of heating system.

50 degrees centigrade equals Ans: 122 degrees F. (1.8 x C + 32F). An evaporator, generator, absorber, is a Ans: component of an absorption water chiller. A British Thermal Unit is Ans: the amount of heat required to change, one pound of water one degree Fahrenheit. A centrifugal compressor is Ans: basically a large capacity unit that handles large volumes of refrigerant. A common type of refrigerant control device used on centrifugal systems is? Ans: a high side float. A compressor rai...

1. Heat which causes a change in temperature of a substance is called; A. latent heat B. sensible heat C. superheat D. radiant heat : B. sensible heat 2. Heat added to a substance without a raise in temperature; (example: liquid refrigerant to gas) this process is called? A. latent heat of vaporization B. latent heat of fusion. C. superheat of vaporization D. superheat of fusion : A. latent heat of vaporization 3. Heat added to the refrigerant in a vapor state after the evaporation...

NFI Exam Review Test Questions And Revised Correct Answers Combustion Requirements (3) - ANSWER : Air, Fuel, Heat Complete Combustion Produces (4) - ANSWER : Water vapor, carbon dioxide, heat, and non combustible ashes incomplete combustion produces (3) - ANSWER : carbon monoxide, hydrocarbons, and other gases rate at which fuel burns is controlled by - ANSWER : the amount of available air air to fuel ratio is a - ANSWER : critical factor in obtaining optimum fuel combusti...

Heat which causes a change in temperature is called - ANSWER ☑☑Sensible Heat Heat added to a substance without a rise in temperature is called - ANSWER ☑☑Latent Heat Heat added to the refrigerant in a vapor state after evaporation is called - ANSWER ☑☑Super Heat A scroll compressor moves refrigerant by means of a - ANSWER ☑☑Involute Spiral The movement of heat by fluid or air is called - ANSWER ☑☑Convection The movement of heat through a solid object is ca...

Refrigeration Machine Operator Course - Turner Exam Questions And Answers What is refrigeration - ANS Refrigeration is the removing of heat from an object or mass and then dissipating that same heat in a place where it's presence will not be objectionable. "Refrigeration systems move heat" The refrigeration process is made possible by - ANS Boiling a refrigerant BTU "British Thermal Unit" - ANS A BTU is the quantity of heat needed to raise one pound of water one degree ...

Heat which causes a change in temperature of a substance is called; : sensible heat. Heat which causes a change in state of a material without a change in temperature is called; : latent heat. Heat which is added to a vapor after the change of state occurs is called; : superheat. Heat can travel by; : conduction, convection, radiation. The movement of heat by way of fluid (or air) is called; : convection . The movement of heat by direct contact is called; 2 | P a g e : conduction ....