When the M coil energizes, what happens to the load contacts?
What will be an ideal response?
When the M coil energizes, the three load contacts connected between the three-phase power line and the motor close to connect the motor to the line.
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In a steep roof, which of the following flashings is made from sheet metal?
A) Step flashing B) Apron flashing C) Cricket flashing D) All of the above E) Only A and C
The study of ________ deals with making a decision and taking an appropriate course of action based on what is right or wrong
Fill in the blank(s) with correct word
Answer the following statement(s) true (T) or false (F)
1. The wound-rotor induction motor and the squirrel-cage induction motor both were developed for variable speed applications. 2. To minimize the starting surge of current to a wound-rotor induction motor, insert the full resistance of the speed controller in the rotor circuit. 3. If the full resistance of the speed controller is inserted into the rotor circuit when the motor is running, the rotor current decreases and the motor slows down. 4. As resistance is removed from the rotor circuit, the rotor speed will continue to increase until its speed matches the synchronous speed of the field developed by the stator windings. 5. The starting torque output of a wound-rotor induction motor is poor when all resistance is removed from the rotor circuit.
The bleeder is opened at a caliper and no brake fluid flows out. Technician A says that this is normal and that brake fluid should not flow or drip out of an open bleeder valve. Technician B says that the vent port in the master cylinder may be blocked. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B