Related Questions

Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is
A $$\frac{{\text{Q}}}{2}$$
B $$\frac{{\text{Q}}}{4}$$
C $$\frac{{\text{Q}}}{8}$$
D $$\frac{{\text{Q}}}{{16}}$$
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a
A Magnetic flowmeter
B Pitot tube
C Flow nozzle type flowmeter
D Turbine flowmeter
To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate)
A Increase both 'G' and 'S'
B Decrease both 'G' and 'S'
C Increase 'S' and decrease 'G'
D Increase 'G' and decrease 'S'
Liquid flow rate in an open channel can not be measured by a/an
A Orifice meter
B Cipolletti weir
C Rectangular weir
D V-notch
Liquid flow rate in a small channel is best measured by a/an
A Weir
B Pitot tube
C Vane meter
D Venturimeter
Flow rate of high velocity flue gas discharged through a stack to the atmosphere can be most conveniently measured by a
A Pitot tube
B Manometer
C Rotameter
D None of these
Flow rate of sludge is not measured by a/an
A Orificemeter
B Open weir
C Kennison nozzle
D Both B & C
Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?
A Absolute instruments
B Indicating instruments
C Recording instruments
D Integrating instruments
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
India's latitudinal and longitudinal extent measured in degrees are almost the same, but its north-south extent measured in km is greater than its east-west extent. This is due to the fact that
A Longitudes are not parallel lines
B The distance between latitudes remains the same but the distance between longitudes is greatest at the Equator and nil at the poles where all longitudes join
C All longitudes with their opposites form great circles
D The earth is not a perfect sphere

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