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.Management Sciences
Category: Process Equipment and Plant Design
Maximum plate efficiency is achieved in case of ______________ flow?
0
A. Split
B. Cross
C. Cascade
D. Reverse
The ratio of linear stress to linear strain is termed as the ____________________?
A. Modulus of elasticity
B. Modulus of rigidity
C. Bulk modulus
D. None of these
Column support for the roof of cylindrical storage tank must be provided for___________________?
A. Small diameter tanks
B. Large diameter tanks
C. Small diameter tall tanks
D. All tanks irrespective of their heights and diameters
The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?
A. Yield point
B. Breaking
C. Ultimate
D. None of these
Speed of industrial paddle agitator ranges from _____________ rpm?
A. 1 to 5
B. 20 to 100
C. 500 to 750
D. 1000 to 2000
The ratio, (propeller agitator dia/tank dia) is normally taken as____________________?
A. 0.15-030
B. 0.5-0.65
C. 0.75-0.85
D. 0.60-0.90
The most common standard size of bubble caps used in industrial operation is___________________?
A. 1″ dia cap with 0.5″ dia riser
B. 6″ dia cap with 4″ dia riser
C. 8″ dia cap with 1″ dia riser
D. 4″ dia cap with 8″ dia riser
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is________________?
A. Bending
B. Deformation
C. Shear
D. Elongation
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure____________________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease depending upon the solubility of the gas in the liquid
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