Related Questions

Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is
A Black
B Silver grey
C Green
D Yellow
A hammer and a screwdriver currently have the same price. If the price of a hammer rises by 6% and the price of a screwdriver goes up by 4%, how much more will it cost to buy 1 hammer and 1 screwdriver?
A 5%
B 10%
C 24%
D 40%
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the
A Pipe length
B Fluid velocity in the pipe
C Time taken to close the valve
D All of the above
Steam traps are provided in steam carrying pipelines to
A Condense steam
B Release excess steam pressure by bleeding steam
C Remove condensate and inert gases
D None of these
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
Water hammer in pipelines results, when the flowing fluid
A Has very high velocity
B Has very high pressure
C Is brought to rest by gradually closing a valve
D Is suddenly brought to rest by closing a valve
Which of the following is the most widely used heat insulating material for pipelines carrying steam?
A Tar dolomite bricks followed by asbestos
B Fireclay refractory followed by aluminium sheet
C Cotton followed by aluminium foil
D 85% magnesia cement and glass wool
Fresh water carrying pipelines in chemical industries are coloured with __________ color.
A Sea green
B Brown
C Yellow
D Red
Gas carrying pipelines are best joined by
A Nuts & bolts
B Rivetting
C Welding
D None of these
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

Next steps