Computer Programming MCQs

A. Presence of mositure
B. Working temperature
C. Time of application of the voltage
D. All of the above

A. 0.04 mm
B. 0.2 to 0.4 mm
E. 3 to 5 mm
D. 40 to 60 mm

A. To minimise temperature stresses
B. To avoid being unearthed easily due to removal of soil
C. To minimize the effect of shocks and vibrations due to gassing vehicles, etc
D. For all of the above reasons

A. Same at the conductor and the sheath
B. Minimum at the conductor and maximum at the sheath
C. Maximum at the conductor and minimum at the sheath
D. Zero at the conductor as well as on the sheath

A. Hysteresis losses only
B. Hysteresis and leakage losses only
C. Hysteresis, leakage and copper losses only
D. Hysteresis, leakage, copper and friction losses

A. Use of dielectrics of different permeabilities
B. Grading according to capacitance of cables per km length
C. Cables using single dielectric in different concentrations
D. Capacitance required to be introduced at different lengths to counter the effect of inductance

A. Easy maintenance
B. Low cost
C. Can be used in congested areas
D. Can be used in high voltage circuits

A. Polyvinyle chloride
B. Vulcanised rubber
C. Impregnated paper
D. Compressed sfe gas

A. The increase in length of the insulation
B. The decrease in the length of the insulation
C. Either a. or (b)
D. None of the above

A. Sheath
B. Insulator
E. Surface of the conductor
D. Core of the conductor