ETC 604 - TROUBLESHOOTING

Electrical troubleshooting should be carried out with a logical, step-by-step

approach which starts with…………………..

• testing

• preparation

• asking

• observation

The ___________who have written the work order you received, may have additional information that can help you in troubleshooting the fault.

• supervisor

• manager

• operator

It is always a good practice to look over the situation visually before doing any physical testing.

• TRUE

• FALSE

From the circuit shown below, LOCAL CONTROL STATION is # ………..

• 1

• 2

• 3

• 4

From the circuit shown below, the OVERLOAD RELAY contact is # __________

• 1

• 2

• 3

• 4

The …………………… change position when the starter is closed, it is used to seal-in circuit around the momentary start switch.

• thermal overload relay

• auxiliary starter contacts

• transformer

• circuit breaker

In Saudi Arabia, the single-phase low voltage has a value of (a)   Volts.

In Saudi Arabia, the three-phase low voltage has a value of (a)   Volts.

Set your Millimeter to …………….. to check the continuity of the fuses and other parts of the circuit.

• ohms

• volts

• amps

• hertz

Thermal overload contacts are normally closed and open only in the event of an overload.

• TRUE

• FALSE