Mechanical Measurement & Instrumentation Objective Questions & Answers - 2

Question: 6

The freezing temperature of mercury is

(A) -39°c

(B) -139°C

(C) -230°C

(D) none of the above

Question: 7

Which of the following is an indirect pressure measuring device?

(A) flat diaphragm

(B) ionisation gauge

(C) manometer

(D) bourdon tube

Question: 8

Relative static error is the ratio of

(A) true value x absolute error

(B) true value / absolute error

(C) absolute error/ true value

(D) none of the above

Question: 9

Nitrocellulose cement is used with strain gauge as

(A) adhesive

(B) base material

(C) lead

(D) carrier

Question: 10

The display of a digital numerical read out instrument is achieved by

(A) phototube

(B) ionization of gases

(C) light emitting diodes

(D) light dependent resistors