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MCQs

Total Questions : 164 | Page 12 of 17 pages
Question 111. The thickness of the layer of insulation on the conductor, in cables, depends upon___________?
  1.    reactive power
  2.    power factor
  3.    voltage
  4.    current carrying capacity
 Discuss Question
Answer: Option C. -> voltage
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 112. In a cable immediately above metallic sheath ______ is provided
  1.    earthing connection
  2.    bedding
  3.    armouring
  4.    none of the above
 Discuss Question
Answer: Option B. -> bedding
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 113. The insulating material for a cable should have__________?
  1.    low cost
  2.    high dielectric strength
  3.    high mechanical strength
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 114. The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to__________?
  1.    absence of harmonics
  2.    non-existence of any stability limit
  3.    smaller dielectric loss
  4.    absence of ripples
  5.    none of the above
 Discuss Question
Answer: Option C. -> smaller dielectric loss
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 115. The bedding on a cable consists of____________?
  1.    hessian cloth
  2.    jute
  3.    any of the above
  4.    none of the above
 Discuss Question
Answer: Option C. -> any of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 116. The insulating material for cables should____________?
  1.    be acid proof
  2.    be non-inflammable
  3.    be non-hygroscopic
  4.    have all above properties
 Discuss Question
Answer: Option D. -> have all above properties
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 117. Cables are used for 132 kV lines____________?
  1.    High tension
  2.    Super tension
  3.    Extra high tension
  4.    Extra super voltage
 Discuss Question
Answer: Option D. -> Extra super voltage
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 118. In single core cables armouring is not done to________?
  1.    avoid excessive sheath losses
  2.    make it flexible
  3.    either of the above
  4.    none of the above
 Discuss Question
Answer: Option A. -> avoid excessive sheath losses
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 119. In a cable, the maximum stress under operating conditions is at___________?
  1.    insulation layer
  2.    sheath
  3.    armour
  4.    conductor surface
 Discuss Question
Answer: Option D. -> conductor surface
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 120. In case of three core flexible cable the colour of the neutral is_________?
  1.    blue
  2.    black
  3.    brown
  4.    none of the above
 Discuss Question
Answer: Option A. -> blue
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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