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Electrical Engineering
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 ________.