1.In a slip ring induction motor slip rings are connected to the :
(A)Rotor(B)Stator
(C )Exciting field(D)Centrifugal switch

2.Which motor is used for electric traction?
(A)DC compound motor(B)Three phase induction motor
(C )DC series motor(D)DCshuntmotor

3.How many slip rings are there in a slip ring induction motor?
(A)2(B)3
(C )4(D)6

4.The stator winding of a 3φ  slip ring'induction motor has 4 poles, How many number of poles in the rotor winding?
(A) 2.(B) 4
(C ) 6(D) 8

5.Which type of capacitor is ....etc

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1.What is the form factor of pure sine wave?
(A) 0.11 
(C ) 1.00 
(B)1.01
(D) 1.11

2.Chisels are made of:
(A) High carbon steel (C ) Cast steel
(B)High speed steel (D) Tungsten steel

3.A magnifying glass is used :
(A)During filling operation
(B)While taking precision measurements
(C )During chipping operation
(D)During cutting operation

4.A delayed-action cartridge fuse is used for :
(A)Motor circuits
(C )Heating circuits
(B) Lighting circuits (D) None of these

5.The effect of smoke, acid and alka ....etc

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hey, i am going to do a project on controlling a robotic arm using rf modules and pc..can anyone help me with the circuit diagrams and design specifications..my email id is [email protected] ....etc

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electric iron box working principle with electric circuit Diagram ....etc

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can anyone tell me operation principle of iron box?
thanks in advance ....etc

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Hamko Hindi me electrion ka interview ka question chahiye ....etc

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plz help searching help in making project report of MBA , i have choose topic Auto finance on hire purchase basis plz help Email ID [email protected] ....etc

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141/2015
Maximum : 100 marks
Time : 1 hour and 15 minutes

1.The value of absolute permittivity is :
(A)8.854 x 10-12 H/M
(B) 8.854 x 10-12 F/M
(C ) 4d x 10-7 H/M
(D) 46 x 10-7 F/M

2.The equation for find out the energy stored in a coil is :
(A)1/2 LI2
(B) 1/2 LØ2
(C ) /2 LB2
(D) X LI

3.The Dummy coil used in a DC generator :
(A)To compensate Demagnetizingeffect
(B)To compensate cross magnetizing effect
(C )To reduce commutation
(D)For Mechanical balancing

4.The transformer oil used in transformer ....etc

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1.Repulsion motor is provided with
(A)Commutator (C ) Capacitor
(B) Centrifugal switch (D) Squirrel cage rotor

2.Whenever a poly phase motor is loaded the :
(A)induced emf in the rotor increases and its frequency falls
(B)induced emf in the rotor increases and its frequency rises
(C )induced in the rotor remains constant
(D)induced emf in the rotor decreases and its frequency increases

3.For three resistance are connected in three phase, the power consumed will be more in__________connection.
(A) star delta(B) ....etc

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1. Arc heating occurs when the air between electrodes of opposite polarity becomes :
(A) Moistened(B)DryDry
(C ) Ionized(D)None of the above

2.The meter used to measure the temperature of a furnace is :
(A) hydrometer(B)pyrometerpyrometer
(C ) hygrometer(D)tachometer

3.Which part is provided in a battery charger to prevent the flow of excessive current into the battery?
(A) Coarse selector(B)Time selector switchTime selector switch
(C ) Limiting resistanceCD)Transformer

4.What will happen to the filter circui ....etc

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