DC MOTOR - Practice Mode

1) Which instrument is used to measure armature winding resistance?

Megger Multimeter Series type Ohm meter Kelvin bridge

Correct Answer: Kelvin bridge

Explanation:

.

2) Which instrument is used to test armature winding for short and open circuit?

Tong Tester Internal Growler External Growler Digital multimeter

Correct Answer: External Growler

3) Which winding wire is used for DC field coil?

Super enamelled copper wire Single silk covered copper wire Double silk covered copper wire PVC covered copper winding wire

Correct Answer: Super enamelled copper wire

4) How many parallel paths in duplex lap winding in the armature of 4 pole D.C Motor?

2 4 6 8

Correct Answer: 2

5) Which rule determines the direction of rotation of armature in D.C motor?

Right hand grip rule Right hand palm rule Fleming's left hand rule Fleming's right hand rule

Correct Answer: Fleming's left hand rule

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