1000+ Measurement and Instrumentation MCQ Questions & Answers - 3

Question: 11

The most serious source of error in ac bridge measurement is

(A) stray fields

(B) residual imperfectness

(C) leakage currents

(D) eddy currents

Question: 12

To minimize voltmeter loading

(A) resistance connected in parallel with the coil should be high

(B) resistance connected in series with the coil should be low

(C) voltmeter operating current has to very high

(D) voltmeter operating current has to be very small

Question: 13

The phenomenon of creeping occurs in

(A) voltmeters

(B) wattmeters

(C) ammeters

(D) energy meter

Question: 14

AC voltmeters use diodes with

(A) high forward current and high reverse current ratings

(B) low forward current and high reverse current ratings

(C) high forward current and low reverse current ratings

(D) low forward current and low reverse current ratings

Question: 15

The largest error between reference input and output during the transient period is called

(A) peak overshoot

(B) transient deviation

(C) peak error

(D) transient overshoot