Chemical Engineering MCQs

6108 MCQs  (Page 364 of 611)

Attempt Chemical Engineering Quiz
Carborundum used for making crucibles for melting non-ferrous metals is chemically________________?
A. Silicon carbide
B. Silicon nitride
C. Crystalline magnesia
D. Zirconium sulphate
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Stoke’s equation is valid in the Reynolds number range__________________?
A. 0.01 to 0.1
B. 0.1 to 2
C. 2 to 10
D. 10 to 100
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Purpose of relief valve in a reciprocating pump is to___________________?
A. Protect the pump against developing excessive pressure
B. Facilitate unidirectional flow of liquid
C. Reduce the discharge pressure
D. Control the rate of discharge
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In isotropic turbulence, the _____________ are equal to each other?
A. Temporal velocity components
B. Mean square of velocity fluctuations in the three co-ordinate directions
C. Root mean square of velocity fluctuations in the three co-ordinate directions
D. None of these
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What is the maximum theoretical suction lift (metres) of a reciprocating pump ?
A. 5
B. 10
C. 50
D. 100
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Which of the following facilitates close control of flow of fluids ?
A. Gate valve
B. Globe valve
C. Butterfly valve
D. Check valve
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Lower BWG means _____________ of the tube?
A. Lower thickness
B. Lower cross-section
C. Outer diameter
D. Inner diameter
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Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as___________________?
A. V1.8
B. V-0.2
C. V2.7
D. V2
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Centrifugal pumps as compared to reciprocating pumps__________________?
A. Run at a lower speed for the same discharge
B. Do not need priming
C. Deliver fluid with pulsating/fluctuating discharge
D. Can be run with discharge line valve closed for a short interval
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Transition length for a turbulent fluid entering into a pipe is around _____________ times the pipe diameter?
A. 5
B. 50
C. 500
D. 5000
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Word of the Day
27 Jul
Widen
make or become wider.
چوڑا ہونا، کشادہ کرنے کا عمل

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