Solid-State Switching Circuits MCQ

Test your knowledge with important Solid-State Switching Circuits MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Solid-State Switching Circuits MCQs at Bissoy

• Forced commutated CSI require _________
  ক

  Diode

  খ

  Resistor

  গ

  Inductor

  ঘ

  Capacitor
• 20 V rated 8 SCRs are connected in series. The operation voltage of the string is 50. Calculate the De-rating factor.
  ক

  .67

  খ

  .68

  গ

  .69

  ঘ

  .70
• Calculate the string efficiency if the de-rating factor is .76.
  ক

  24 %

  খ

  25 %

  গ

  26 %

  ঘ

  27 %
• Calculate the r.m.s value of the fundamental component of the output current having an amplitude of 3 A for CSI.
  ক

  2.80 A

  খ

  2.70 A

  গ

  2.54 A

  ঘ

  3.48 A
• Calculate the r.m.s value of the output current having an amplitude of 2 A for CSI.
  ক

  3 A

  খ

  4 A

  গ

  2 A

  ঘ

  1 A
• Number of switches turned on in CSI at a single time are __________
  ক

  2

  খ

  4

  গ

  5

  ঘ

  3
• What is the distortion factor value in CSI?
  ক

  .85

  খ

  .90

  গ

  .95

  ঘ

  .88
• T.H.D value for CSI is ________________
  ক

  48.43 %

  খ

  41.15 %

  গ

  39.15 %

  ঘ

  46.48 %
• The output current waveform for R load in CSI is ___________
  ক

  Square

  খ

  Triangular

  গ

  Constant

  ঘ

  Vertical
• Calculate the maximum frequency for ASCI using the data: R=15 kΩ, C=5 μF.
  ক

  3.51 Hz

  খ

  3.69 Hz

  গ

  3.33 Hz

  ঘ

  3.98 Hz
• Full form of ASCI is ___________
  ক

  Auto sequential commutated inverter

  খ

  Auto starter commutated inverter

  গ

  Auto sequential current inverter

  ঘ

  Auto sequential current inserter
• Calculate the minimum time period for ASCI using the data: R=12 kΩ, C=45 μF.
  ক

  2.58 sec

  খ

  2.16 sec

  গ

  2.23 sec

  ঘ

  2.48 sec
• The output voltage of CSI depends upon the load.
  ক

  True

  খ

  False
• The use of inductor in CSI is to make source current constant.
  ক

  True

  খ

  False
• 1600 V rated 8 SCRs are connected in series. The operation voltage of the string is 4400. Calculate the string efficiency.
  ক

  34.37 %

  খ

  30.15 %

  গ

  38.48 %

  ঘ

  35.84 %
• Calculate the average value of thyristor current in 3-Φ Full wave converter for the load current=729 A and α=3°.
  ক

  254 A

  খ

  285 A

  গ

  247 A

  ঘ

  243 A
• Calculate the r.m.s value of thyristor current in 3-Φ Full wave converter for the load current=2 A and α=59°.
  ক

  1.15 A

  খ

  2.55 A

  গ

  2.07 A

  ঘ

  2.89 A
• Calculate the phase voltage for 3-∅ 120° VSI if the value of DC supply is 78 V.
  ক

  30.45 V

  খ

  15.18 V

  গ

  31.84 V

  ঘ

  48.15 V
• Calculate the line voltage for 3-∅ 120° VSI if the value of DC supply is 96 V.
  ক

  68.25 V

  খ

  67.87 V

  গ

  66.25 V

  ঘ

  62.14 V
• Calculate the rotational kinetic energy of the object using the data: I=5 Kg-m2, ω=25 rad/sec.
  ক

  1.46 KJ

  খ

  1.56 KJ

  গ

  2.58 KJ

  ঘ

  3.15 KJ
• Calculate Kinetic energy of the object of mass = 7 Kg moving in a straight line with a velocity of 12 m/s.
  ক

  504 J

  খ

  502 J

  গ

  503 J

  ঘ

  509 J
• Calculate the maximum fluctuation of speed using the data: Vmax=23 m/sec, Vmin=13 m/sec.
  ক

  12

  খ

  10

  গ

  14

  ঘ

  15
• Calculate the coefficient of fluctuation of speed using the data: Vmax(Fluctuation)=25 m/sec, Vmean=12 m/sec.
  ক

  2.08

  খ

  2.16

  গ

  2.34

  ঘ

  2.74
• Energy is stored in Flywheel in the form of __________
  ক

  Kinetic energy

  খ

  Electrical energy

  গ

  Solar energy

  ঘ

  Wind energy
• Flywheel is analogous to ___________
  ক

  Chemical battery

  খ

  Mechanical battery

  গ

  Nuclear battery

  ঘ

  Electrostatic battery
• Full form of IGBT is ___________
  ক

  Insulated gate bipolar transistor

  খ

  Insulated gate bipolar transducer

  গ

  Insulator gate bidirectional transducer

  ঘ

  Insulated gate bidirectional transistor
• Full form of KERS is ___________
  ক

  The kinetic energy recovery system

  খ

  The kinetic ever recovery system

  গ

  Kin ever recovery system

  ঘ

  The kinetic energy recovery store
• Short circuit problem is severe in case of current source inverter.
  ক

  True

  খ

  False
• Rectifiers are used to convert DC power into variable AC power.
  ক

  True

  খ

  False
• T.H.D value for 3-∅ 180° VSI is ________________
  ক

  36 %

  খ

  31 %

  গ

  39 %

  ঘ

  46 %