RRB JE electrical practice paper-2 | RRB JE Electrical

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RRB JE electrical practice paper-2 | RRB JE Electrical

 

 Ques.1. Shunt conductance in the power transmission is due to

  1. Leakage over the insulator
  2. Leakage over the conductors
  3. Leakage over the poles
  4. Leakage between ground and conductor

Answer.1. Leakage over the Insulator

 

Ques.2. A logarithmic spiral extending out of singular points is

  1. Stable
  2. Unstable focus
  3. Conditionally stable
  4. Marginally stable

Answer.2. Unstable focus

 

Ques.3. The symbol Q refer to

  1. Resonance Quotient
  2. Quality Factor
  3. Power Quotient
  4. Qualification test

Answer.2. Quality Factor

 

Ques.4. The gang capacitor is a variable capacitor in which capacitance is varied by changing the

  1. Dielectric
  2. Number of plates
  3. Plate area
  4. Distance between the points

Answer.3. Plate area

 

Ques.5. Ohm is the unit of

  1. Resistance
  2. Inductive Reactance
  3. Capacitive Reactance
  4. All of the above

Answer.1. Resistance

 

Ques.6. Which of the following instruments indicates the instantaneous value of the electrical quantity being measured at the time at which it is being measured?

  1. Absolute instrument
  2. Indicating instrument
  3. Recording Instrument
  4. Integrating Instrument

Answer.2. Indicating instrument

 

Ques.7. Inside the hollow conducting sphere

  1. Electric field is zero
  2. Electric field is a non-zero constant
  3. Electric field changes with magnitude of the change given to the conductor
  4. Electric field changes with the distance from the center of sphere

Answer.1. Electric field is zero

 

Ques.8. Commutator in DC generator is used for

  1. Collecting of current
  2. Reduce Losses
  3. Increasing efficiency
  4. Convert AC armature current in DC

Answer.4. Convert AC armature current in DC

 

Ques.9. What are the constituents in speed time curve of train?

  1. Coasting
  2. Initial Acceleration
  3. Constant speed
  4. All of these

Answer.4. All of these

 

Ques.10. If field current is decreased in shunt dc motor the speed of the motor

  1. Remain same
  2. Increases
  3. Decreases
  4. None of the above

Answer.2. Increases

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