Related Questions

The thickness of insulation provided on the conductor depends on
A The magnitude of voltage on the conductor
B The magnitude of current flowing through it
C Both (A) and (B)
D None of the above
When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
A The value of current
B The weight of the conductor
C The direction of the conductor
D None of the above
The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number) n, where n is equal to
A $$ - \frac{1}{3}$$
B $$ - \frac{2}{3}$$
C 1
D $$-1$$
The material commonly used for insulation in high voltage cables is
A Lead
B Paper
C Rubber
D None of the above
Which of the following insulation is used in cables?
A Varnished cambric
B Rubber
C Paper
D Any of the above
Rubber is most commonly used insulation in cables.
A Yes
B No
The line insulation is the insulation level of the station equipment.
A less than
B same as
C more than
D proportional to
E not directly related with
The insulation between windings and grounded core and the insulation between the windings of the same phase is
A minor insulation
B major insulation
C either of the above
D none of the above
Upto the critical radius of insulation, added insulation, will
A Increase the heat loss
B Decrease heat loss and will have no effect beyond that
C Decrease heat flux
D Reduce convection heat loss compared to conduction heat less
Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.
A 3, 3, 1, 7
B 3, 2, 1, none
C 3, 2, 1, 7
D 3, 3, 2, none
E All of the above

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