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Category: Chemical Engineering Basics
Water hammer is caused in steam carrying pipelines, because of ______________________?
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A. Partial condensation of steam
B. Vibration of the pipeline
C. High degree of superheat of steam
D. Its exposure to torrential rain
Steel balls are manufactured by_____________________?
A. Sintering
B. Casting
C. Cold heading
D. Spinning
______________ is not used as the control rod material in a nuclear reactor ?
A. Cobalt
B. Hafnium
C. Cadmium
D. Boron
Specific _________________ is a dimensionless quantity ?
A. Heat
B. Humidity
C. Weight
D. None of these
_______________ has a negative co-efficient of linear expansion?
A. Iron
B. Copper
C. Rubber
D. Nickel
Dowtherm is a____________________?
A. High temperature heating medium (a petroleum product)
B. Product of coal tar distillation
C. Very heat sensitive material
D. None of these
Out of the following, the ________________ pipe has the least corrosion resistance?
A. Mild steel
B. Copper
C. Cast iron
D. Wrought iron
Photographic plates are coated with _____________________?
A. Silver nitrate
B. Silver halide
C. Calcium silicate
D. Metallic silver
The same volume of all gases is representative of their_____________________?
A. Specific gravities
B. Densities
C. Gas characteristic constants
D. Molecular weights
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