Q.1
Plugging is suitable for __________ type loads.
  • a) Gravitational
  • b) Electrostatic
  • c) Weightless
  • d) Leading
Q.2
In DC shunt machine ∅ is directly proportional to Ia.
  • a) True
  • b) False
Q.3
Braking resistance should be selected in order to limit the braking current.
  • a) True
  • b) False
Q.4
Torque developed in the motor is ___________
  • a) KmΦIa
  • b) KmΦIa3
  • c) 2KmΦIa
  • d) KmΦIa2
Q.5
Full form of TVR is _________
  • a) Terminal voltage reversal
  • b) Total voltage reversal
  • c) Terminal voltage redirect
  • d) Total voltage reversal
Q.6
Calculate the current in DC shunt field winding using the following data: Ia=A, IL=R=N=484.
  • a) 4 A
  • b) 2 A
  • c) 7 A
  • d) 6 A
Q.7
Calculate the flux produced by the DC shunt field winding using the following data: Ia=5 A, IL=R=N=4.
  • a) 14 Wb
  • b) 12 Wb
  • c) 17 Wb
  • d) 18 Wb
Q.8
The shape of the speed-armature current characteristics in DC shunt motor is __________
  • a) Hyperbolic
  • b) Parabola
  • c) Negative slope linear line
  • d) Ellipse
Q.9
The shape of the speed-torque characteristics in DC shunt motor is __________
  • a) Rectangular Hyperbolic
  • b) Whole x-y plane
  • c) Circle
  • d) Ellipse
Q.10
DC shunt motors are used where the high _________ is required.
  • a) Starting torque
  • b) Maximum torque
  • c) Minimum torque
  • d) Breakdown torque
Q.11
The shape of the current-torque characteristics in DC shunt motor is __________
  • a) Rectangular Hyperbola
  • b) Parabola
  • c) Straight line
  • d) Ellipse
Q.12
The relationship between the torque(T) and power(P) developed in the DC shunt motor is ___________ (Neglecting all the losses)
  • a) T ∝ √P
  • b) T ∝ P2
  • c) T ∝ ∛P
  • d) T ∝ P
Q.13
The value of current at time of starting is ___________
  • a) High
  • b) Low
  • c) Very low
  • d) 0
Q.14
Calculate the bandwidth in series RLC circuit if the frequency isHz and the quality factor is 5.
  • a) 2 Hz
  • b) 4 Hz
  • c) 6 Hz
  • d) 8 Hz
0 h : 0 m : 1 s