Answer the following statement(s) true (T) or false (F)
1. Mechanical type brakes cannot hold a suspended load.
2. In the accompanying figure, the brake is applied automatically when the motor is not operating.
3. Dynamic braking for a DC motor is very effective, but the braking effect becomes weaker as the armature slows down.
4. Plugging is used with direct current motors more than with three phase squirrel cage motors.
5. One method of providing plugging control is with the use of an automatic timed circuit.
1. False
2. Truer
3 True
4. False
5. True
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What is the rule for calculating total applied voltage (ET) in a series circuit?
What will be an ideal response?
Johnson was narrowly acquitted on the impeachment charges ultimately because
A. Secretary of War Edwin Stanton aided Johnson's defense by spying on congressional prosecutors. B. radical Republicans recognized that Johnson's successor would be worse. C. many people favored destabilizing the federal government. D. sufficient numbers of Republican senators recognized that the impeachment charges were legally dubious and politically charged and voted "not guilty." E. Johnson promised to reverse his Reconstruction policies and adopt all of the radical Republicans' positions.
A(n) ____________________ is any product other than the base metal
Fill in the blank(s) with the appropriate word(s).
In some applications, the engineer will call for the trusses to be applied in 2-ply or 3-ply.
Answer the following statement true (T) or false (F)