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10 questions
What is component A?
Contact NO
Contact NC
Armature
Common
Which statement is FALSE for this Figure.
The electromechanical timer turn ON after 3 seconds
The motor will delay for 3 seconds to turn ON
The electromechanical timer turn OFF after 3 seconds
After 3 seconds, the pilot lamp will turn OFF
The Figure explain the operation of....
ON delay
OFF delay
Count Up
Count Down
Which statement refers to an electromechanical relay?
Used for higher load’s rating (>5kW)
Used in both control and power circuits
Cannot be repaired
Wait for a specified time for its coil to energized
Identify the device in Figure given
Relay
Contactor
Timer
Counter
When coil energize, what happen to the circuit?
Armature moves to 1
Fan 2 ON
Fan 1 OFF
Supply turn ON
Identify the type of relay in the circuit.
Single pole single throw
Single pole double throw
Double pole single throw
Double pole double throw
What is the advantage of programmable automation system
Fixed usage
Easy to modify
High initial cost
Slow speed
What one is NOT the main purpose of Automation Control System in a production field?
Increase quantity
Reduce cost
Improve economy
Increase safety
Figure show a symbol of...
Coil relay
Coil timer
Coil counter
Coil contactor
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