Filters
Question type

Study Flashcards

A ____ added to the circuit allows adjustment of the length of time delay within the limits of the  circuit.


A) static resistor
B) variable resistor
C) static inverter
D) variable diode

E) A) and C)
F) None of the above

Correct Answer

verifed

verified

B

When an on-delay relay is de-energized, the contacts return to their normal position after some length  of time.

A) True
B) False

Correct Answer

verifed

verified

The time delay for an on-delay timer can be accomplished by several methods: pneumatic, electric  clock, or electronic.

A) True
B) False

Correct Answer

verifed

verified

A ____ clock is used in some electronic timers that must be very accurate.


A) quartz
B) neon
C) argon
D) silicon

E) None of the above
F) A) and C)

Correct Answer

verifed

verified

When an on-delay relay is energized, its contacts remain in their normal position for some length of  time before they change.

A) True
B) False

Correct Answer

verifed

verified

When an on-delay contact has been set for 10 seconds, once the normally open relay has been  energized the contact remains open for ____ seconds.


A) 5
B) 10
C) 15
D) 20

E) A) and D)
F) All of the above

Correct Answer

verifed

verified

RC time constants are expensive but relatively accurate.

A) True
B) False

Correct Answer

verifed

verified

False

Most electronic timers are made to plug into sockets, which makes replacing a defective timer quick  and avoids the necessity of rewiring.

A) True
B) False

Correct Answer

verifed

verified

Most electronic timers use a(n) ____ to control the time delay.


A) DC time variable
B) RC time variance
C) DC time constant
D) RC time constant

E) All of the above
F) A) and B)

Correct Answer

verifed

verified

If an on-delay contact has been set for 10 seconds, when the relay has been de-energized the contact  ____.


A) returns to its normally open position immediately
B) returns to its normally open position after 5 seconds
C) returns to its normally open position after 10 seconds
D) returns to its normally open position after 20 seconds

E) B) and C)
F) A) and C)

Correct Answer

verifed

verified

A

Showing 1 - 10 of 10

Related Exams

Show Answer