Blower motor - Study guides, Class notes & Summaries
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NATE Gas Furnace Service 117 Questions with Correct Answers 100% Verified
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NATE Gas Furnace Service 117 Questions with Correct Answers 100% Verified 
What is the typical load rating of the branch circuit over-current protection for a residential gas furnace? - Correct Answer 25 Amp 
 
What is recommended for a pressurization leak test of fuel gas pipe? - Correct Answer Compressed air 
 
When selecting a replacement indoor blower motor, Which criteria should be included? - Correct Answer Motor horsepower 
 
Induced draft blowers in direct vent condensing furnaces pull c...
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Electric Heat ESCO - HVAC Excellence Exam Tested Questions With Revised Answers
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Electric Heat ESCO - HVAC 
Excellence 
Exam Tested Questions With 
Revised Answers 
 
A motor used in an electric furnace is rated at 230 VAC what is 
the minimum and maximum voltages allowed - ANSWER 
207 to 253 
A tech reads 5 FLA on data plate approx what should the LRA 
be - ANSWER 
15 to 25 amps 
A tech checks a fan motor run capacitor to ground with an 
analog ohmeter what resistance scale should be used - 
ANSWER 
r X 10K 
A tech is checking the ressitance of a ...
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MODULE 2 MOTORS THEORY AND APPLICATION 2024 QUESTIONS WITH CORRECT ANSWERS ALREADY PASSED AND VERIFIED
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1.	The field coils of a series motor are connected in series with the	. - 
: armature 
2.	A(n)	is used to provide the switching action required for continuous DC motor rotation.: Commutator 
3.	The most common class of insulation used in motor manufacturing and rewinding is NEMA	.: Class B 
4.	Which type of motor requires brushes, slip rings, and an amortisseur wind- ing?: Synchronous motor 
5.	The two basic types of DC motor connections are the	and	: - 
Series; Shunt 
6.	Define slip.: the diffe...
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Gas Heat ESCO exam with Complete Solutions 100% Verified
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Gas Heat ESCO exam with Complete 
Solutions 100% Verified 
A gas furnace to be installed in a garage. The national standards requires that the burners and 
ignition must be located ____ above the floor: ️️18 inches 
A good description of how a bi-metal fan switch operates the blower motor on a gas furnace is: 
️️Temperature on/ Temperature off 
Redundant gas valves used on gas furnaces will shut down if gas pressure exceeds: ️️13.5 
in W.C. (or 1/2 psi) 
This is the maximum pres...
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SOS Mechanic Certificate - Electrical|Complete Questions with Graded A+ Answers
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SOS Mechanic Certificate - Electrical|Complete Questions with Graded A+ Answers 
After installing a new battery how long should you wait to allow for pcm time 
no need to wait 
 
 
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 
 
 ...
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Automotive HVAC Final Correct Questions & Answers!!
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1. Where is the heater core located? - ANSWER In the dash 
 
2. In a system with no PTC heater, how is the coolant heated? - ANSWER the engine heats the coolant 
 
3. How is current controlled in a PTC heater? - ANSWER The PTC is Self regulated resistence, Changes with heat and makes it shut off. 
 
4. What component is responsible for circulating the air inside the cabin? - ANSWER Blower motor 
 
5. What is a benefit of using a PTC heater? - ANSWER It Provides heat without having the car on. 
 ...
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Esco Heating 208 Questions And Answers
- Exam (elaborations) • 25 pages • 2024
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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 - ans-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. - ans-C: temperature on- temperature off 
 
3. Redundant gas valves used on g...
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Variable Frequency Drives Questions And Answers
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Certain speed at peak line voltage of a specific frequency - ANS What are standard 3 phase induction motors designed to operate at? 
 
A motor operating with a VFD runs slower and is subject to voltages higher than the peak of the line and at varying frequencies... which can cause problems for standard 3 phase induction motors - ANS What can cause problems for standard three phase induction motors? 
 
Totally enclosed fan cooled - ANS TEFC 
 
The fan of a TEFC (Tota...
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Esco Heating 208|| 100 Questions|| Correct Answers|| Verified
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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 g...
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HVACR gas heating esco Questions & 100% Verified Answers | Latest Update | Already Graded A+
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using an ohmmeter, there is 120 VAC between high speed and ground wires, this 
indicates 
: open 
if temperature rise is too high... 
: increase fan speed 
how many of the 3 OSHA conditions defining confined spaces must be met 
: all 3 
what causes the temperature limit safety switch to shut off the burner 
: fan motor failure 
flashback indicates 
: the gas is flowing slower than the speed at which burn is occurring 
what type of connector is used to control noise in ductwork 
2 | P a g e 
: v...
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