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MCQs

Total Questions : 604 | Page 5 of 61 pages
Question 41. DC tachogenerator can be used in
  1.    Speed control system
  2.    Position control system
  3.    Both A and B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A and B
Question 42. Which dc servomotor requires strongest permanent magnet?
  1.    Slotted armature
  2.    Surface wound armature
  3.    Surface wound with stationary rotor
  4.    Either A or B
 Discuss Question
Answer: Option C. -> Surface wound with stationary rotor
Question 43. A conditionally stable system is stable for the value of gain between two critical values. It is unstable if
  1.    The gain is increased beyond upper critical value
  2.    The gain is decreased below lower critical value
  3.    Both A and B
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both A and B
Question 44. Which of the following is used to obtain output position in a position control system?
  1.    Strain gauge
  2.    Load cell
  3.    Synchro
  4.    Thermistor
 Discuss Question
Answer: Option B. -> Load cell
Question 45. Temperature is analogous to
  1.    Voltage
  2.    Flux
  3.    Charge
  4.    None of the above
 Discuss Question
Answer: Option A. -> Voltage
Question 46. If any term in the first column of a Routh array becomes zero, then
  1.    Routh criterion cannot be used to determine stability
  2.    Routh criterion can be used by substituting a small positive number for zero and completing the array
  3.    Routh criterion can be used by substituting a big positive number for zero and completing the array
  4.    Routh criterion can be used by substituting a small negative number for zero and complet-ing the array
 Discuss Question
Answer: Option B. -> Routh criterion can be used by substituting a small positive number for zero and completing the array
Question 47. In the cauer-2 form of LC network---------is series element and --------is shunt element respectively?
  1.     C and L
  2.     C and C
  3.     L and L
  4.     L and C
 Discuss Question
Answer: Option A. ->  C and L
Question 48. Poles and zeros are arranged alternatively on negative real axis, then type of network is/are
  1.     LC network.
  2.     RC network.
  3.     RL network.
  4.     Both 2 and 3.
 Discuss Question
Answer: Option D. ->  Both 2 and 3.
Question 49. Lowest critical frequency is due to zero and it may be present at the origin or nearer to the origin, then the type of network is
  1.     RLC circuit.
  2.     RL Circuit.
  3.     LC circuit.
  4.     RC circuit.
 Discuss Question
Answer: Option B. ->  RL Circuit.
Question 50. Lowest critical frequency is due to pole and it may be present at the origin or nearer to the origin, then the type of network is
  1.     LC.
  2.     Any of the above.
  3.     RL.
  4.     RC.
 Discuss Question
Answer: Option D. ->  RC.

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