Subject Repository
Electrical Engineering Mcqs
Showing 1621 – 1640 of 3,699 verified multiple choice questions with answers and explanations.
Q1621NTS / FPSC / PPSC
Directional relays are based on flow of____________?
Q1622NTS / FPSC / PPSC
Air blast circuit breaker is used for_____________?
Q1623NTS / FPSC / PPSC
Circuit breakers usually operate under______________?
Q1626NTS / FPSC / PPSC
Circuit breakers are essentially______________?
Q1627NTS / FPSC / PPSC
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should_________________?
Q1628NTS / FPSC / PPSC
Thermal overload relays are used to protect the motor against over current due to____________?
Q1630NTS / FPSC / PPSC
A thermal protection switch can protect against_____________?
Q1632NTS / FPSC / PPSC
Which of the following medium is employed for extinction of arc in air circuit breaker?
Q1633NTS / FPSC / PPSC
On which of the following routine tests are conducted ?
Q1634NTS / FPSC / PPSC
The arcing contacts in a circuit breaker are made of______________?
Q1637NTS / FPSC / PPSC
Magnetic circuit breaker has ___________ trip action
Q1639NTS / FPSC / PPSC
With which of the following, a circuit breaker must be equipped for remote operation ?
Q1640NTS / FPSC / PPSC