Nate Electrical Practice Exam Questions with Answers

What electro-mechanical control would you use on a cap tube or automatic expansion valve system to maintain the space temperature? A: A dual pressure control B: A low pressure control C: A thermostatic control D: A high pressure control 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? A: indicates the temp. rise over the surrounding air of a motor when the motor is operating at full-load conditions B: indicates the temp. rise of the motor. C: indicates the temp. drop of the surrounding air. D: indicates the temp. drop of the motor at rest. 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? A: Series B: Parallel C: Series-parallel D: Delta B: Parallel