A. Keep the pipe in proper orientation
B. Make the pipe joint leak-proof
C. Account for contraction/expansion of pipe due to temperature changes of the surroundings
D. Account for the pressure variation side the pipeline
Related Mcqs:
- 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 column 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 - Identification of pipelines carrying different liquids and gases is done by the ____________ of the pipe?
A. Diameter
B. Colour
C. Altitude
D. None of these - Surge tanks are provided in high pressure water pipelines to___________________?
A. Store a definite quantity of water all the time
B. Reduce the water hammer
C. Facilitate easy dismantling of pipeline for cleaning and maintenance
D. None of these - A Newtonian liquid (ρ = density, μ = viscosity) is flowing with velocity „v‟ in a tube of diameter ‘D’. Let Δp be the pressure drop across the length ‘L’. For a laminar flow, Δp is proportional to_________________?
A. Lρv2/D
B. LμV/D2
C. Dρv2/L
D. μV/L - Function of air vessel provided in a reciprocating pump is to_________________?
A. Reduce discharge fluctuation
B. Reduce the danger of cavitation
C. Avoid the necessity of priming
D. Increase the pump efficiency - A hydraulic press has a ram of 10 cms in diameter and a plunger of 1 cm in diameter. The force required on the plunger to raise a weight of 10 tons on the ram is _____________ kg?
A. 10
B. 100
C. 1000
D. 10000 - With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss_______________?
A. Decreases
B. Increases
C. Remain constant
D. Increases linearly - A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke’s law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity ?
A. Same as that of A
B. One fourth as that of A
C. Twice as that of A
D. Four times as that of A - Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, ζ = surface tension of mercury)____________________?
A. d
B. 1/d
C. ζ
D. 1/ζ - With increase in the ratio of orifice diameter to pipe diameter, the fraction of the orifice pressure differential that is permanently lost________________?
A. Increases
B. Decreases
C. Remains unchanged
D. Increases exponentially
