Blower motor - Study guides, Class notes & Summaries
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SOS Mechanic Certificate – Electrical- Brakes- Suspension & Steering Combined Exam Reviewed Set Questions And Revised Correct Answers
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SOS Mechanic Certificate – 
Electrical- Brakes- 
Suspension & Steering Combined 
Exam Reviewed Set Questions And 
Revised Correct Answers 
A vehicles blower motor only works on high..... - 
ANSWER 
blower resistor 
A blower motor on a vehicle with a grounded diode 
switch system - ANSWER 
short to ground on 
the ground sibe of circuit 
While testing circuit draw on a blower motor test 
notices current draw - ANSWER 
nothing this is 
normal 
The mechanic is scope te...
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ASE A7 EXAM 3 QUESTIONS AND ANSWERS
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D. (used on a orifice tube system to absorb moisture also stores vaporized refrigerant to be sent to the compressor) 
Which A/C system device is in the figure above? 
 
A. Evaporator core 
B. Receiver/drier 
C. Muffler 
D. Accumulator/drier 
 
B. 
What is the LEAST LIKELY condition that could cause a blower resistor thermal element to burn up? 
 
A. Tight blower motor bearing 
B. Open blower motor winding 
C. Wire rubbing a metal bracket 
D. Blower motor fan blade rubbing the duct 
D. (the serv...
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SOS Electrical Test Questions and Answers 100% Pass
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SOS Electrical Test Questions and 
 
Answers 100% Pass 
 
As blower motor speed decreases the voltage drop across the resistance block.... increases 
 
What should you do first when replacing junction block or fuse? Unlock the battery ground 
cable 
 
The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor 
is.... a commutator 
 
When performing a volt drop test the volt meter setting should be set to the following.. 3 
volts 
 
The symbol at the RIGHT repr...
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NATE FINAL EXAM 2/ LATEST UPDATE EXAM 2024 WITH 100% CORRECT DETAILED ANSWERS/A+ GRADE ASSURED
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NATE FINAL EXAM 2/ LATEST UPDATE EXAM 2024 WITH 100% CORRECT DETAILED ANSWERS/A+ GRADE ASSURED 
 
 
 
Which of the following components is energized first after an intermittent ignition gas furnace calls for heat? 
 
A: Induced draft motor 
 
B: Pilot valve 
 
C: Blower motor 
 
D: Gas valve - Correct Answer-A 
 
 
To have a system automatically switch to heating or cooling as the load changes, the thermostat: 
 
A: System switch should be in auto 
 
B: System switch should be in off 
 
C: Syste...
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HVAC BOMA 501 Study Guide Latest Update Graded A+
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HVAC BOMA 501 Study Guide Latest 
 
Update Graded A+ 
 
Dual Duct System A system in which hot air and cold air are supplied by separate ducts and 
mixed at each controlled space to provide the desired supply air temperature. This method 
consumes a great deal of energy. 
 
Muiltizone System an a/c system in which the zone control is obtained by mixing hot and 
cold air at the unit in response to a room thermostat 
 
Load Calulations take the sensible heat and the latent heat into consideration ...
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Esco Heating 208 | 100% Correct Answers | Verified | Latest 2024 Version
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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 - 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. - C: temperature on- temperature off 
3. Redundant gas valves used on gas furnaces will ...
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HVAC NATE Gas Heat Exam (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade
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HVAC NATE Gas Heat Exam (New 2024/ 
2025 Update) Questions and Verified 
Answers 100% Correct | A Grade 
 
 
QUESTION 
 A damaged section of double wall vent pipe is to be replaced with a section produced by a 
different manufacturer: 
 
 
Answer: 
The installer should check the new section for compatible locking joints. 
 
 
 
QUESTION 
 If too much primary air is used the flame will: 
 
 
Answer: 
Lift off the burner. 
 
 
 
QUESTION 
 What is the problem when a flame on a high efficien...
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SOS Mechanic Certificate Electrical Verified Study Questions And Answers 2024 Solutions
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SOS Mechanic Certificate Electrical Verified Study Questions And Answers 2024 Solutions 
 
SOS Mechanic Certificate Electrical Verified Study Questions And Answers 2024 Solutions
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HVAC Gas Heat Certification Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
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HVAC Gas Heat Certification Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A 
 
Q: What is the volume of flue gas produced from a 60,000 BTU/h Category I fan assisted Natural Gas furnace operating with 50% excess air? 
 
 
Answer: 
600 cu ft. 
 
 
 
Q: The purpose of a flue baffle is to 
 
 
Answer: 
Increase heat exchange 
 
 
 
Q: The LP gas pressure supplied to the appliance gas valve should be 
 
 
Answer: 
11 - 13 in. W.C. 
 
 
 
Q: An installed gas furna...
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Gas and Electric Heat Unit 32 Oil Heat exam 2024 with 100% correct answers
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heat-producing system, heat-distributing system correct answersIntroduction to Oil-Fired Forced-Warm-Air Furnaces 
 
Oil-fired forced-warm-air furnaces have two main systems: 
 
A ________________________, consisting of the oil burner, fuel supply components, combustion chamber, and heat exchangers 
A ______________________, consisting of the blower, and other related components 
 
powered, starts correct answersIntroduction to Oil-Fired Forced-Warm-Air Furnaces 
 
When thermostat calls for heat...
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