Electrical Engineering Questions
Explore questions in the Electrical Engineering category that you can ask Spark.E!
Air-cooled condensers use _______ to drive air across the condensing coil.
When current begins to flow through a(n) , a magnetic field expands around the _______.
The exhaust blower unit consists of a three-horsepower, three-phase, 208-volt motor driving a propeller-type fanthrough a(n) ________ drive.
The hermetic compressor consists of a motor-compressor completely sealed in a gastight, ____ casing.
Conductors in capacitor circuits must be rated no less than ____ percent of the current rating of the capacitor.
A capacitor does not require a separate disconnect means if it is connected to the _____ side of the motor overload protective device.
In most instances, the rated-load current is at least equal to 64.1 percent of the hermetic refrigerant motor-compressor's ________ current.
Whenever the specific area is cooled to the desired temperature, a(n) ________ opens the control circuit to the motor controller and the air movement stops until the area again requires cooling.
The _______ operates like an electric check valve; it permits the current to flow through it in only one direction.
A dielectric test set often used for testing capacitors is generally referred to as a _________ because of its ability to produce a high voltage or high potential.
The amount of capacitance needed can be determined by connecting a(n) _______, ammeter, and voltmeter to the circuit.
is a method of removing energy in the form of heat from an object.
A(n) ______ converts high-voltage ac into high-voltage dc.
The main parts of a precipitator are the ______, collector cells, and power supply
What percentage of the full-load current of a thermally protected continuous-duty motor of more than one Hp can the trip current be, if the full-load current is 15 amperes?
Two-phase motors that are especially designed for_______________ applications use the same rules for determining full-load currents as single-phase motors.
Apparent power is generally called ______.
What is the maximum deflection force in pounds for a belt in the cross-section class D?
Although the __________ compound motor gives a more constant speed at all loads, the motor is somewhat unstable.
The force acting at the rim of the rotor multiplied by the radius from the center of the rotor is called the ________.