General, Definitions, Basic Applications: Circuit Breakers, Logic Circuits Flashcards
What unit of measurement is used to express frequency
Hertz
An AC Generator’s frequency is measured using which unit, and can be described as what?
Hertz (Hz), the number of oscillations per second.
Which circuit breaker is used with a bimetallic strip that typically causes a delayed trip, depending on the severity of the overcurrent?
Thermal Circuit Breaker.
What unit of measurement is used to express electrical resistance.
Ohm
Display of a large aircraft is normally powered by?
400 HZ AC
What is the SI unit of measurement for power?
W
The rating of electrical fuses is expressed in?
Amperes
What unit of measurement is used to express electrical current?
Ampere
Ohms law states that in an electric circuit?
The current passing through a resistor between two points is proportional to the voltage between those two points.
A thermal circuit breaker protects the system in the event of a?
Prolonged overcurrent.
A relay is an?
Electromagnetic operated switch?
What unit of measurement is used to express electrical work?
Joule.
What is the name of a switch operated by a bimetallic strip?
Circuit breaker
What unit of measurement is used to express electrical power?
Watt.
What is the symbol commonly used for voltage?
U and it is measured in volts.
