Btu british thermal unit - Study guides, Class notes & Summaries

Absolute Temperature. A temperature measured in Kelvins (K) or Rankines (R). Accelerant. A fuel or oxidizer, often an ignitible liquid, intentionally used to initiate a fire or increase the rate of growth or spread of fire. Accident. An unplanned event that interrupts an activity and sometimes causes injury or damage or a chance occurrence arising from unknown causes; an unexpected happening due to carelessness, ignorance, and the like. Ambient. Someone's or something'...

CSN AC 110 Esco Exam Practice With 100% Correct Answers 2024 1. Heat which causes a change in temperature of a substance is called; A. latent heat B. sensible heat C. superheat D. radiant heat - answerB. 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 - answerA. latent heat of vaporization ...

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; 2 : convection . The movement of heat by direct contact is called; : conduction . The standa...

HVAC FINAL Correct Questions & Answers(RateA_____is the quantity of heat required to raise the temperature of I lb of water |°F. - ANSWER British thermal unit (BTU) Comfor is typically attained at normal cooling and heating temperatures with a relative humidity of about _____% - ANSWER 50% _________is the movement of air through distribution systems and building spaces. - ANSWER Air circulation ___________is the variation of air temperature in a building space that occurs when warm air...

HVAC EXAM 1 2024 WITH 100% CORRECT ANSWERS Matter 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 ...

Nora Certification Questions with 100% Verified Correct Answers The final adjustment for most oil burners is? - Correct Answer Combustion air Dirt or lint build-up in the bevel of the fan blades will: - Correct Answer Reduce the amount of combustion air. To change the air ratio for different firing rates with an adjustable head burner you: - Correct Answer Adjust the position of the draw assembly in the air tube. One advantage of a high pressure burner is: - Correct Answer They enable ...

Stationary Engineer License Exam Prep Questions And Answers 100% Solved A ______ fuse is necessary for a circuit with a load of 21,000 watts and a voltage of 220 volts. A. 100 B. 150 C. 175 D. 200 A. 100 amps. Note: V = IR Therefore I = V/R 21,000 amps /220 volts = 95 amps At 0 psig, how many BTU's are required to change 1 lb of water at 212F to steam? A. 144 B. 180 C. 970 D. 1190 C. 970 BTU Radiation is: A. the movement of liquids or gases created by a temperature difference. ...

Massachusetts Oil Burner Study Guide Rated A+ What is the voltage found at the TT terminals 24 volts What are the 8 steps of a no heat call 1 talk to customer 2 check tt.3 check to make sure an emergency switch is on 4check to make sure there is oil in the tank 5 check to make sure the main power going to the unit is on six check to make sure that tank shut off valve is open 7 know whether the tank is located above or below the burner I know the type and style of the system that is ...

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

AA - Answer-atomic absorption AC - Answer-power alternating current ac - Answer-acre AF - Answer-acre-foot (feet) AFY - Answer-acre-foot per year AMSA - Answer-Association of Metropolitan Sewerage Agencies ANSI - Answer-American National Standards Institute APHA - Answer-American Public Health Association AS - Answer-activated sludge ASCE - Answer-American Society of Civil Engineers ASME - Answer-American Society of Mechanical Engineers ASTM - Answer-American Society for Testing and...