7000+ Metallurgical Engineering Questions and Answers Pdf - 2

Question: 6

Rms value is defined based on which of the following?

(A) Current

(B) Voltage

(C) Heating effect

(D) Charge transfer

Question: 7

To obtain a high value of capacitance, the permittivity of dielectric medium should be

(A) High

(B) Low

(C) Unity

(D) Zero

Question: 8

The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as

(A) Capacitance

(B) Series aiding inductance

(C) Mutual inductance

(D) Self inductance

Question: 9

Final value theorem is not applicable for which of the following?

(A) Stable systems

(B) Unstable systems

(C) Marginally stable systems

(D) Both b and c

Question: 10

Instantaneous power in inductor is proportional to the

(A) Temperature of the inductor

(B) Square of the rate of change of current

(C) Square of instantaneous current

(D) Product of the instantaneous current and rate of change of current