Related Questions

Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure.
A Small differential
B Atmospheric
C Absolute
D Gage
Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).
A H
B 12.6 H
C 13.6 H
D 14.6 H
Differential manometer is used to measure
A Pressure in pipes, channels etc.
B Atmospheric pressure
C Very low pressure
D Difference of pressure between two points
Manometer is used to measure
A Pressure in pipes, channels etc.
B Atmospheric pressure
C Very low pressure
D Difference of pressure between two points
A differential manometer is used to measure
A Atmospheric pressure
B Pressure in pipes and channels
C Pressure in Venturimeter
D Difference of pressures between two points in a pipe
Two liquids manometer is used for measuring small pressure differences in
A Liquids
B Gases
C Mixture of hydrocarbons
D None of these
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is
A Water
B Carbon tetrachloride
C Paraffin
D Ethylene glycol
Minimum diameter of the tube used for making water manometer should be __________ mm to avoid a correction for the effect of capillarity.
A 1
B 2.5
C 4
D 6
Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm.
A [

A.

B. > 4

B > 12.5
For manometer, a better liquid combination is one having-------
A No surface tension
B High density and viscosity
C Lower surface tension
D Higher surface tension

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