Heat anticipator Study guides, Class notes & Summaries
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NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update
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NATE Gas Heating Exam Verified 
Questions and answers 2023 
Latest Update 
Since 1992, the United States Department of Energy has required that all furnaces sold 
and installed from that date on must have an AFUE of no less than: 
A: 70% 
B: 75% 
C: 78% 
D: 80% - correct answer C: 78% 
Many pre-1992 furnaces have efficiencies around . 
A: 10% 
B: 40% 
C: 60% 
D: 80% - correct answer C: 60% 
Today, furnaces with AFUE ratings greater than are available. 
A: 85% 
B: 90% 
C: 100% 
D: 110% - correct ...
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Oil burner License Study Guide (Massachusetts) Questions and Answers
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What are the 3 funtions of an Oil Burner nozzle? - Answer- Atomize, Meter, Patter. 
 
What are the 2 voltage circuits of a primary control? - Answer- Line & Low. 
 
What is the function of a fuse? - Answer- Protect circuit. 
 
What is the High Limit cut out? - Answer- Max safe Temp or Pressure setting. 
 
What is the High Limit cut in? - Answer- Cut out minus Differential. 
 
What is the "Max" Lockout time for a burner with a 3 GPH Flow Rate? - Answer- 45 Seconds. 
 
What is the minimum stack ...
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G2 Exam Quiz Bank (2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A
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G2 Exam Quiz Bank (2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A 
 
 
Q: The STACK EFFECT in a water heater is usually caused by 
 
Answer: 
 Short draws of water from the heater 
 
 
Q: A 120v power supply for a residential electrical circuit is taken from the 
 
Answer: 
 - 
Load side of one branch circuit breaker and a neutral lug 
 
 
 
Q: The minimum allowable distance to be maintained from a 50,000 btuh water heater flue outlet gas regulator 
 
Answer: 
 3' 
...
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Gas Technician G2 Exam (2024/ 2025) Questions and Verified Answers| 100% Correct| Grade A
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Gas Technician G2 Exam (2024/ 2025) Questions and Verified Answers| 100% Correct| Grade A 
 
Q: On an Electrical Schematic, all operating controls are drawn: 
 
 
Answer: 
Normally Open 
 
 
 
Q: As the length of a Conductor Increases, the Voltage Drop along the Conductor: 
 
 
Answer: 
Increases 
 
 
 
Q: When a new appliance is to be installed in a typical residential basement and the Supply Wiring to it is concealed, which of the following types of wire is acceptable, and most cost effectiv...
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Esco Heating 208 Questions And Answers With Latest Study Quiz
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1. A gas furnace is to be installed in a garage. The burners and ignition sources must be located ______ 
above the floor. 
A: 6 inches 
B: 12 inches 
C: 18 inches 
D: 24 inches - Answer-C: 18 inches 
2. A good description of how hi-metai fan switch operates the blower motor on a gas furnace is: 
A: temperature on - time off. 
B: temperature on - time on. 
C: temperature on- temperature off. 
D: time on - time off. - Answer-C: temperature on- temperature off 
3. Redundant gas valves used on gas ...
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HVAC 313A prep Questions and Answers | New One | Grade A+
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senible heat 
Ans: Heat that can be measured by a thermometer 
latent heat 
Ans: heat required to create a phase change without a change in temperature. 
Phychrometric 
Ans: The study of air and its properties 
What is enthapy? 
Ans: The total measure of heat content in the air and is made up of sensible and latent heat 
measured in BTU per pound of air 
Cooling anticipator is wired how? 
Ans: Parallel with temp control 
How is heating anticipator wired? 
Ans: In series with t-stat control 
Net...
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HVAC NATE Heat Pump Exam Questions With Correct Answers Updated 2024/2025 (Graded A+)
- Exam (elaborations) • 19 pages • 2024
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HVAC NATE Heat Pump Exam Questions With Correct Answers Updated 2024/2025 (Graded A+) What is the primary purpose of using flux when soldering copper or brass parts? -Ans 
Prevent Oxidation 
The water that results from a defrost cycle of an air to air heat pump(runoff) must? -Ans 
Drain off and away from the outdoor coil. 
Why must the runoff be drained off and away from the outdoor coil? -AnsExcessive ice can 
build up on the bottom of the coil and can reduce capacity. 
What is the component th...
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NATE Heat Pump Exam Questions With Correct Answers Updated 2024/2025 (VERIFIED A+)
- Exam (elaborations) • 19 pages • 2024
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NATE Heat Pump Exam Questions With Correct Answers Updated 2024/2025 (VERIFIED A+) The water that results from a defrost cycle of an air to air heat pump(runoff) must? -Ans 
Drain off and away from the outdoor coil. 
Why must the runoff be drained off and away from the outdoor coil? -AnsExcessive ice can 
build up on the bottom of the coil and can reduce capacity. 
What is the component that reduces sound transmission and prevents water leaks of a package 
heat pump installed on a roof? -Ans Cur...
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HVAC NATE Heat Pump /171 Questions with Correct Answers Assured A+.
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HVAC NATE Heat Pump /171 Questions with Correct Answers Assured A+. 
On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop 
that does not exceed what? -Ans 6-7PSI or 6F 
What is the primary purpose of using flux when soldering copper or brass parts? -Ans 
Prevent Oxidation 
The water that results from a defrost cycle of an air to air heat pump(runoff) must? -Ans 
Drain off and away from the outdoor coil. 
Why must the runoff be drained off and away from ...
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HVAC NATE Heat Pump Exam Questions and Answers 100% Pass
- Exam (elaborations) • 19 pages • 2024
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HVAC NATE Heat Pump Exam Questions and 
Answers 100% Pass 
On an R-22 system, line diameters and lengths are typically specified for a vapor 
pressure drop that does not exceed what? -Answer-6-7PSI or 6F 
What is the primary purpose of using flux when soldering copper or brass parts? - 
Answer-Prevent Oxidation 
The water that results from a defrost cycle of an air to air heat pump(runoff) must? - 
Answer-Drain off and away from the outdoor coil. 
Why must the runoff be drained off and away from...
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