IET 1 questions with verified solutions
A+ rated
A circuit which controls another circuit through a relay is
remote control circuit
A mercury switch makes contact by
the liquid mercury conducting when the contacts are immersed
the term "normally closed" when referring to relay contacts means that the contacts are
open when the relay coil is energized
When a start button of the momentary contact type is installed the magnetic contractor must
have
holding contacts
one of the major benefits of using relays or magnetic switches is that
it is possible to use compact actuating devices for any type or size load
shading coils are used with AC magnetic switches to
, reduce chattering
holding contacts are
in parallel with the holding coil
we laminate the bar of a magnetic starter to
reduce eddy currents
heat sinks are made from
aluminum
the CT portion of wattmeter would have a high
resistance
in the circuit below what is the purpose of the NC contacts R and F?
To provide an interlock between the circuits
As an electrician you should strive for the highest industry workmanship standards in your work
activities. When terminating connecters on wire terminations the minimum quality test to
determine you've done a good job would be a simple
tug test
A+ rated
A circuit which controls another circuit through a relay is
remote control circuit
A mercury switch makes contact by
the liquid mercury conducting when the contacts are immersed
the term "normally closed" when referring to relay contacts means that the contacts are
open when the relay coil is energized
When a start button of the momentary contact type is installed the magnetic contractor must
have
holding contacts
one of the major benefits of using relays or magnetic switches is that
it is possible to use compact actuating devices for any type or size load
shading coils are used with AC magnetic switches to
, reduce chattering
holding contacts are
in parallel with the holding coil
we laminate the bar of a magnetic starter to
reduce eddy currents
heat sinks are made from
aluminum
the CT portion of wattmeter would have a high
resistance
in the circuit below what is the purpose of the NC contacts R and F?
To provide an interlock between the circuits
As an electrician you should strive for the highest industry workmanship standards in your work
activities. When terminating connecters on wire terminations the minimum quality test to
determine you've done a good job would be a simple
tug test
