BASIC Knowledge for EEE

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Q1:- In a dc compound generator flat compound ,"characteristic ,required for certain application may be obtained by connecting variable resistance

1. a cross the series field
2. in series with the series 
3. in parallel with the shunt field
4. in series with the shunt fied

ANSWER:-1

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Q2:- The advantage of a synchronous motor in addition to its constant speed is 

1. high power factor
2. better efficiency
3. lowest cost
4. all

ANSWER:-1

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Q3:- Capacity of a cane is expressed in term of 

1. span 
2. type of drive
3. tonnes
4. any of these

ANSWER:-3

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Q4:-Travelling speed of cranes varies from

1. 1 to 2.5 m/s 
2. 5 to 10 m/s
3. 10 to 20 m/s
4. 20 to 40 m/s

ANSWER:-1

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Q5:-Motor preferred for bower is 

1. wound rotor I.M.
2. DC shunt motor
3. squirra cage I.M.
4. all

ANSWER:-3

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Q6:-Motor used for elevators is generally 

1. synchronous motor
2. I.M.
3. capacitor start 1-phase I.M.
4. all

ANSWER:-2

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Q7:-Ward leonord controlled dc drives are generally used

1. light duty excavators
2. medium duty excavators
3. heavy duty excavators
4. all

ANSWER:-3

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Q8:- A capacitor stored energy in 

1. magnetic field
2. electric field 
3. electromagnetic field 
4. all

ANSWER:-2

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Q9:-The electric motor used in toys is 

1. capacitor stat motor 
2. split phase motor
3. shaded pole motor
4. none

ANSWER:-3

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Q10:- A compensating winding is used in 

1. ac series motor
2. capacitor stat motor
3. shaded pole moto 
4. none 

ANSWER:-1

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