Questions
61
Which theory explains the mechanism for breakdown under different conditions?
Answer: Only (a) and (b)
62
Inelastic collisions are those in which internal changes in energy take place within an atom or a molecule at the expenses of total kinetic energy of the colliding particle. Suitable example for inelastic collisions is/are
Answer: All of these
63
Druyesteynian distribution applies when the ion energy is much
Answer: Greater than the thermal energy
65
The Townsend mechanism explains the phenomenon of breakdown
Answer: Only at low pressure
67
For applications in power cables, the dielectrics most commonly used is
Answer: Polyolefins
68
High temperature hydrocarbons have
Answer: Higher boiling point and high viscosity
69
Compared to copper and iron losses, dielectric loss in transformer oil is
Answer: Negligible
