When the equivalent circuit diagram of doouble squirrelcage induction motor is constructed the two cages can be considered

When the equivalent circuit diagram of double squirrel-cage induction motor is constructed the two cages can be considered

A

In series

B

In parallel

C

In series-parallel

D

In parallel with stator

For a power system having induction motor loads, an overexcited synchronous motor is also attached. The induction motor will now operate at __________

A

lagging

B

leading

C

reduced power factor

D

increased power factor

For a power system having induction motor loads, an overexcited synchronous motor is also attached. The induction motor will now operate at ________

A

lagging

B

leading

C

reduced power factor

D

increased power factor

Consider the following statement with reference to Popper's solution of the problem of induction, and mark the correct option.
1. There is no rationally justifiable method of induction.
2. There is no reliable method of induction.
3. There is a reliable method of induction.
Choose the correct answer:

A

Only 1 is true

B

Only 1 and 2 are true

C

Only 2 is true

D

Only 2 and 3 are true

Examine the following statements relating to induction and identify those which are either true or false.
1. Induction today is renamed as empolyee orientation programme.
2. It is also known by the term 'on boarding'.
3. It is for the purpose of socialising the new employees.
4. Informal induction is better than formal induction.

A

1, 2 are true, 3, 4 are false

B

2, 3 are true, 1, 4 are false

C

1, 2 and 3 are true, 4 is false

D

1, 2 and 4 are true, 3 is false

I. An induction can never operate at leading power factor. II. Speed of the induction motor can be made more than synchronous speed and still it will work as motor.

A

I is true, II is false

B

I is true, II is true

C

I is false, II is true

D

I is false, II is also false

The squirrel cage induction motor of 6-pole can be used as ________ induction motor.

A

any number of poles

B

6 pole

C

6 or 12 pole

D

integral number of 4 poles

A wound rotor induction motor is preferred, as compared to squirrel cage induction motor, when major consideration is

A

Slop speed operation

B

High starting torque

C

Low windage losses

D

All of the above

Wound rotor induction motor has better ________ characteristics than Squirrel cage induction motor.

A

Starting

B

Running

C

Modified

D

Quasi-state

(I) Even at no load a large 3-phase squirrel- cage induction motor is started at reduced voltage than rated. (II) If a large 3–phase squirrel-cage induction motor with no load is started at full voltage, it will be damaged.

A

I is true, II is false

B

I is true and II is also true

C

I is false, II is true

D

I and II are false

When the equivalent circuit diagram of doouble squirrelcage induction motor is constructed the two cages can be considered

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