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19.
Which of the following may be measured by the deflection of an elastic element, by balancing against a known force, by the acceleration produced in an object of known mass :
A. force
B.
pressure
C.
temperature
D.
level
Answer: A
Explanation:
20.
The sensitivity of reading of manometer can be increased by :
A. inclining the manometer rube
B.
using low specific gravity fluid
C.
application of optical magnification
D.
use of level sensing device
Answer: A
Explanation:
21.
Which of the following device is used as a standard for calibrating pressure gauges :
A. manometer
B.
diaphragm
C.
bellows
D.
dead weight pressure tester
Answer: D
Explanation:
22.
Which gauge can be used to measure pressure below 1 |xm :
A. dead weight tester
B.
pirani gauge
C.
ionization gauge
D.
McLeod gauge
Answer: C
Explanation:
23.
Which is not correct statement about selection of tube material for a Bourdon gauge:
A. Have high creep strength to withstand high temperature
B.
Be stable enough to maintain its calibration indefinitely
C.
Be immune to corrosion from the fluid inside the tube, and from the atmosphere outside it
D.
Be hard enough to withstand the applied pressure without any part of it being stressed above the limit of proportionality
Answer: A
Explanation:
24.
Hysteresis error in Bourdon tube can be minimized by :
A. using proper tube material
B.
using proper diameter and thickness of tube
C.
avoiding temperature cycling
D.
using it well within the designed pressure range
Answer: D
Explanation:
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