MEASUREMENT AND INSTRUMENTATION QUIZ

_______ instruments are those which measure the total quantity of the electricity delivered in a particular time.

Absolute

Integrating

Recording

Indicating

TRUE ANSWER : ?
YOUR ANSWER : ?

To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows

an ellipse.

sinisoidal.

a straight line.

a circle.

TRUE ANSWER : ?
YOUR ANSWER : ?

An induction meter can handle current upto

30 A

100 A

10 A

60 A

TRUE ANSWER : ?
YOUR ANSWER : ?

A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be

625 Hz.

400 Hz.

500 Hz.

250 Hz.

TRUE ANSWER : ?
YOUR ANSWER : ?

Comparison methods are used

because they are expensive.

when a high accuracy of measurement is required.

because they are most simple.

because they take least time in measurement.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the quantity consists of unit as Pascal ?

Force

Pressure

Temperature

Impulse

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following quantities consists of S.I. unit as Hertz?

Force

Frequency

Power

Charge

TRUE ANSWER : ?
YOUR ANSWER : ?

A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be

50 W.

25 W.

100 W.

0 W.

TRUE ANSWER : ?
YOUR ANSWER : ?

Resistance of a VARISTOR varies with

Current

Voltage

Both Voltage and Temperature

Temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Standardization of potentiometer is done in order that, they become

accurate and direct reading.

precise.

accurate.

accurate and precise.

TRUE ANSWER : ?
YOUR ANSWER : ?

↑