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ONLINE MCQ EE-ELECTRICAL INSTALLATION & WIRING 1

Harikesh Yadav
Q1. ____ cables are used for 132 kV lines.
 A.  High tension
 [Wrong Answer]		  B.  Super tension
 [Wrong Answer]
 C.  Extra high tension
 [Wrong Answer]		  D.  Extra super voltage
 [Correct Answer]
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Q2. PVC stands for
 A.  polyvinyl chloride
 [Correct Answer]		  B.  post varnish conductor
 [Wrong Answer]
 C.  pressed and varnished cloth
 [Wrong Answer]		  D.  positive voltage conductor
 [Wrong Answer]
 E.  none of the above
 [Wrong Answer]
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Q3. In cables the charging current
 A.  lags the voltage by 90°
 [Wrong Answer]		  B.  leads the voltage by 90°
 [Correct Answer]
 C.  lags the voltage by 180°
 [Wrong Answer]		  D.  leads the voltage by 180°
 [Wrong Answer]
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Q4. In a cable the voltage stress is maximum
at
 A.  sheath
 [Wrong Answer]		  B.  insulator
 [Wrong Answer]
 C.  surface of the conductor
 [Wrong Answer]		  D.  core of the conductor
 [Correct Answer]
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Q5. The insulating material should have
 A.  low permittivity
 [Wrong Answer]		  B.  high resistivity
 [Wrong Answer]
 C.  high dielectric strength
 [Wrong Answer]		  D.  all of the above
 [Correct Answer]
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Q6. Which of the following insulation is
used in cables ?
 A.  Varnished cambric
 [Wrong Answer]		  B.  Rubber
 [Wrong Answer]
 C.  Paper
 [Wrong Answer]		  D.  Any of the above
 [Correct Answer]
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Q7. Conduit pipes are normally used to
protect ____ cables.
 A.  unsheathed cables
 [Correct Answer]		  B.  armored
 [Wrong Answer]
 C.  PVC sheathed cables
 [Wrong Answer]		  D.  all of the above
 [Wrong Answer]
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Q8. In the cables, the location of fault is
usually found out by comparing
 A.  the resistance of the conductor
 [Wrong Answer]		  B.  the inductance of conductors
 [Wrong Answer]
 C.  the capacitance’s of insulated conductors
 [Correct Answer]		  D.  all above parameters
 [Wrong Answer]
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Q9. A certain cable has an insulation of
relative permittivity 4. If the insulation
is replaced by one of relative permittivity
2, the capacitance of the cable will
become
 A.  one half
 [Correct Answer]		  B.  double
 [Wrong Answer]
 C.  four times
 [Wrong Answer]		  D.  none of the above
 [Wrong Answer]
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Q10. Capacitance grading of cable implies
 A.  use of dielectrics of different permeabilities
 [Correct Answer]		  B.  grading according to capacitance of
cables per km length
 [Wrong Answer]
 C.  cables using single dielectric in different
concentrations
 [Wrong Answer]		  D.  capacitance required to be introduced
at different lengths to counter
the effect of inductance
 [Wrong Answer]
 E.  none of the above
 [Wrong Answer]
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