CONTROL PANEL WIRING AND MAINTENANCE - Practice Mode

1) What type of switch unsuitable for portable (or) mobile devices?

Push button switch Pole changing switch Mercury switch Limit switch

Correct Answer: Mercury switch

2) which is used with ammeter to measure high current in panel board?

Current Transformer Control Transformer Potential Transformer Power Transformer

Correct Answer: Current Transformer

Explanation:

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3) Which switch is used to control the distance or angles of movement of any machine part or axis or object?

Mercury switch Limit switch Push button switch Selector switch

Correct Answer: Limit switch

4) Which accessory is used in control panel to mount MCB,Contactor etc.without using screw?

Race way DIN rail Gromet PVC channel

Correct Answer: DIN rail

5) What is the use of wire ferrule in control panel wiring?

Harnessing the cable Insulating the cable Easy identification of cable end To protect the wire from heat

Correct Answer: Easy identification of cable end

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