Nate Electrical Exam Questions and Complete Solutions Graded A+
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Course
Nate commercial
Institution
Nate Commercial
What electro-mechanical control would you use on a cap tube or automatic expansion valve system to maintain the space temperature? - Answer: C: A thermostatic control
Open motors are designed to operate at a given temperature rise as indicated on the motor nameplate. What does this mean? - Ans...
, What electro-mechanical control would you use on a cap tube or automatic expansion valve system to
maintain the space temperature? - Answer: C: A thermostatic control
Open motors are designed to operate at a given temperature rise as indicated on the motor nameplate.
What does this mean? - Answer: A: indicates the temp. rise over the surrounding air of a motor when
the motor is operating at full-load conditions
A voltmeter is connected into a circuit in which of the following ways? - Answer: B: Parallel
A low pressure control is usually located on the: - Answer: A: Condensing unit
A high pressure control is usually located on the: - Answer: A: Condensing unit
The term "nominal voltage" refers to: - Answer: D: The listed voltage
Which of the following is a safety control? - Answer: B: High pressure control
Low voltage controls are usually designed to operate at no more than: - Answer: A: 25 volts
A unit of power equal to one horsepower and delivered at the shaft of a motor is known as: - Answer: B:
Brake horsepower
What is the purpose of the holding circuit in a magnetic motor starter? - Answer: B: Holds the main
contacts closed until the control circuit through the interlock is broken.
On a magnetic motor starter, the alloy piece that causes the motor starter to open and shut off the
motor if too much motor current is drawn is called the: - Answer: D: Trip armature
A set of contacts in a pressure control that close when the pressure increases are - Answer: A: Direct
acting
Direct acting means "closes on rise". Contacts close on an increase
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