CONTROL PANEL WIRING - Practice Mode

1) Which accessory is used to mount MCB,OLR in the panel board without using screws?

DIN Rail G. channel Grommets PVC channel

Correct Answer: DIN Rail

2) Which type of device protects motors from over heating and over loading in a panel board?

Rectifier Limit switch Thermal relay Electro mechanical relay

Correct Answer: Thermal relay

3) What is the use of G? channels in control panel?

For fixing relays For fixing contactors For fixing instruments For fixing terminal connectors

Correct Answer: For fixing terminal connectors

4) What is the function of limit switch in control panel wiring?

Controls machine from over heat Controls machine from over speed Controls machine from over loading Controls distance movement of any machine

Correct Answer: Controls distance movement of any machine

5) Which is the standard duty cycle code of the contactor for starting and stopping the AC resistive and inductive load?

AC<sub>1</sub> AC<sub>2</sub> AC<sub>3</sub> AC<sub>4</sub>

Correct Answer: AC<sub>2</sub>

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