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- 1. Multiple Choice
Which of the following is an application of a relay?
Performing control logic
Seal-in circuit
Energizing a fluid power valve solenoid
All of the above
- 2. Multiple Choice
An electromechanical relay includes which of these components?
Two sets of NO contacts, and a solenoid coil
NO contacts, NC contacts, and a solenoid coil
Two sets of NC contacts, and a solenoid coil
NO and NC contacts and a ferrous element
- 3. Multiple Choice
What component of a relay positions the contacts into their normal state when the solenoid is de-energized?
Coil
Contacts
Armature
Spring
- 4. Multiple Choice
Which of the following is not a component of a relay?
Coil
Contacts
Valve
Spring
- 5. Multiple Choice
Which type of device is the relay's solenoid coil in the control logic?
Input
Output
Latching
Memory
- 6. Multiple Choice
The flow of electricity to a solenoid is carried through __________ to protect other devices.
uninsulated wires
relay contacts
shielded cable
a capacitor
- 7. Multiple Choice
Turning outputs on or off through relay contacts is called __________.
control logic
bypass logic
indirect actuation
All of the above
- 8. Multiple Choice
A stop pushbutton is basically just a __________.
normally open pushbutton switch
normally closed pushbutton switch
panic switch
All of the above
- 9. Multiple Choice
An example of memory logic by a control relay is __________.
bypass logic
manual override
seal-in circuit
All of the above
- 10. Multiple Choice
One method of deenergizing a seal-in circuit is to use __________.
a manual override
another relay
a solenoid
an input with NC contacts
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