Heating and cooling - Study guides, Revision notes & Summaries

S-290 Final Exam Questions and Answers Already Passed T/F Topography can directly and indirectly affect fuels and their availability for combustion. True Of the three primary environmental factors that influence fire behavior, which is the least variable? Topography The least critical form of heat transfer that influences rate of spread in a running wild land fire is: Conduction The point to which a combustible material must be heated to produce self-sustaining combustion is known as the: Ig...

Hydrostatic testing of steam jacket kettles is required on what basis? - correct answer Annually Hydrostatic testing of steam jacket kettles is required as per what instruction? (Ashore) - correct answer OPNAVINST 11000.16 Steam jacket kettles vary in size from 5 to how many gallons? - correct answer 80 Gallons The griddle consists of cooking surfaces of various sizes up to 34 inches deep by how many inches wide? - correct answer 72 inches What are large frying pans with deep...

When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - Answer-A) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming and operating status. Select one: True False - Answer-True With the fan switch in the on position...

HVAC NATE Heat Pump Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: What is the absolute pressure at sea level if a gauge pressure is 35 psig? Answer: 49.7psia Q: 100,000 BTUH output furnace. Return air temp is 65F. Supply air is 135F. What is the CFM? Answer: 1323CFM Q: What is the best method of repair when a residential supply diffuser is noisy because of a loose vane? Answer: Replace the diffuser. Q: When...

Charging a heat pump with refrigerant is best accomplished in the _______ mode. A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode CORRECT ANSWER B: Cooling mode Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the heat pump more efficient? A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode CORRECT ANSWER A: Heating mode Which of the following components is exclusive t...

When inspecting the heating equipment, the inspector is not required to _________. A. operate the system using normal operating controls B. open readily openable access panels provided by the manufacturer C. observe automatic safety controls D. operate heating systems when conditions may cause equipment damage - Ans: D. operate heating systems when conditions may cause equipment damage What should an inspector do if they find a cracked heat exchanger? A. turn off the furnace immediately ...

The Heating and Cooling Inspection: AHIT Questions with complete solutions

BOMA - Instrumentation & Controls Questions and Answers Rated A+ What important function(s) does an air receiver perform? Dissipates heat, Dampens compressor pulsations, Act as water and oil trap On a compressed air system a safety valve would generally be installed on the: Air receiver Variable air volume system: Typically use VFDs to save energy In figure 1.3, a full call for cooling would be at what branch pressure to the damper motor? 3 psig A ratio relay would be used to. Contr...

Test Bank For Modern Refrigeration and Air Conditioning 21st Edition by Andrew D. Althouse, Carl H. Turnquist, Alfred F. Bracciano, Daniel C. Bracciano, Gloria M. Bracciano 8776, 1, 6044, 1 1 - Careers and Certification 2 - Safety 3 - Service Calls 4 - Energy and Matter 5 - Gases 6 - Basic Refrigeration Systems 7 - Tools and Supplies 8 - Working with Tubing and Piping 9 - Introduction to Refrigerants 10 - Equipment and Instruments for Refrigerant Handling and Servic...

When inspecting the heating equipment, the inspector is not required to _________. A. operate the system using normal operating controls B. open readily openable access panels provided by the manufacturer C. observe automatic safety controls D. operate heating systems when conditions may cause equipment damage CORRECT ANSWER D. operate heating systems when conditions may cause equipment damage What should an inspector do if they find a cracked heat exchanger? A. turn off the furnace ...

DENTAL RADIOGRAPHY REVIEW EXAM | 254 ACTUAL QUESTIONS AND ANSWERS VERIFIED BY EXPERT 100% CORRECT | UPDATED The most sensitive cells to ionizing radiation are a. bone b. muscle c. nerve d. reproductive - ANSWER d. reproductive The best type of x-ray to penetrate body tissue is a. low frequencies b. high frequencies, short wavelength c. long wavelength d. soft rays, long wavelength - ANSWER b. high frequencies, short wavelength Before seating the dental patient, it is necessar...