A motor overload relay consists of a current-sensing unit and a mechanism activated by the sensing unit that _____.

a. dissipates excess current
b. opens the motor circuit
c. trips an alarm
d. decreases motor speed


b. opens the motor circuit

Trades & Technology

You might also like to view...

A rectangular pool is filled with water to a depth of 6' 6". The pool is 16' 6" wide and 32' 0" long. How many hours does it take to completely drain the pool if water is pumped at the rate of 48.5 gallons per minute?  Round the answer to the nearest tenth hour.

Fill in the blank(s) with the appropriate word(s).

Trades & Technology

What is the total resistance in a circuit with three 10-ohm resistors wired in parallel.?

What will be an ideal response?

Trades & Technology

If a pressure gauge displays a reading of 50 psig, what is the absolute pressure?

A. about 35 psia B. about 50 psia C. about 65 psia D. about 100 psia

Trades & Technology

Rectangular coordinate dimensioning without dimension lines is also called ____________________ dimensioning.

Fill in the blank(s) with the appropriate word(s).

Trades & Technology