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
Oxygen carrying pipelines in chemical industries are coloured with __________ colour.
A Yellow
B Black
C Blue
D Red
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
There are 87 balls in a jar. Each ball is painted with at least one of two colors, red or green. It is observed that 2/7 of the balls that have red color also have green color, while 3/7 of the balls that have green color also have red color. what fraction of the balls in the jar has both red and green colors?
A 6/14
B 2/7
C 6/35
D 6/29
Water hammer is caused in steam carrying pipelines, because of
A Partial condensation of steam
B Vibration of the pipeline
C High degree of superheat of steam
D Its exposure to torrential rain
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
The ratio of quantity of water in fresh fruit to that of dry fruits is 7 : 2 . If 400 km of dry fruits contain 50 km of water then find the weight of the water in same fruits when they were fresh?
A 100 km
B 150 km
C 175 kg
D 125 kg
A tube filled at one end with mirrors and pieces of coloured glass which shows many coloured patterns when turned
A Kaleidoscope
B Periscope
C Microscope
D Gyroscope
Gas carrying pipelines are best joined by
A Nuts & bolts
B Rivetting
C Welding
D None of these
Disc compensators are provided in large diameter fuel gas carrying pipelines to
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

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