Wireman – Semester 3, Module 7 - AC Single phase induction motors
Common for Wireman Trade 2nd Year
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NAME *
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NAME OF THE ITI *
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MOBILE NUMBER *
1 : What is the basic working principle of single phase universal motors? *
2 points
2: Which motor has very low starting torque? *
2 points
3: Which type of rotor is used in capacitor start induction run single phase motor? *
2 points
4: How many number of windings are therein split phase resistance type induction motor? *
2 points
5: Which winding circuit will have more resistance in split phase resistance type induction motor? *
2 points
6: Which motor operates without centrifugal switch? *
2 points
7: Which winding is disconnected by the centrifugal switch in split phase resistance type induction motor *
2 points
8 : Which speed the centrifugal switch acts ina single phase induction motor? *
2 points
9 : Which single phase induction motor has high starting torque? *
2 points
10 : Which winding is disconnected at 70% of speed in a capacitor start induction run motor? *
2 points
11 : What is the another name of main winding in a single phase capacitor start induction run motor? *
2 points
12: What is the part marked as X? *
2 points
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13 : What is the material used to make the shading coil of a shaded pole motor? *
2 points
14 : Which single phase motor operates in both AC and DC supply? *
2 points
15 : What is the another name of Universal motor? *
2 points
16: Which of the motor has wound rotor and commutator? *
2 points
17: What is the value of starting torque for a universal motor? *
2 points
18: Which motor runs at synchronous speed? *
2 points
19 : Which motor stator is wound for three phase? *
2 points
20 : Which motor stator consists of multiple salient electro magnet poles? *
2 points
21: Which of the motor has step movements? *
2 points
22: Which type of winding is done in the repulsion motor? *
2 points
23: Which motor is used in food mixer? *
2 points
24: Which motor is used for refrigerators and air conditioners? *
2 points
25: Which motor is used in toys and hairdryers? *
2 points
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