A. Decreases (Correct)
B. Increases
C. Remains the same
D. May increase or decrease, depending upon whether the fluid is Newtonian or non-Newtonian
MCQs and Q&As
Nominal size of the discharge pipe of a pump is usually _____________ the nominal size of the inlet pipe?
A. Smaller than (Correct)
B. Larger than
C. Same as
D. Twice
Ball bearings are generally made of___________________?
A. Plain carbon steel
B. Chrome carbon steel (Correct)
C. Stainless steel
D. Malleable cast iron
Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter)?
A. 0.2 D (Correct)
B. 0.5 D
C. 0.66 D
D. 0.80 D
The smallest individuals which constitute the entire population are called __________________?
A. Sampling frame
B. Sampling units(Correct)
C. Sample pop
D. Sample design
Binomial distribution is symmetrical when:_________________?
A. p = q (Correct)
B. p > q
C. p > q
D. np > npq
Binomial distribution ranges from _______________?
A. 1 to n
B. 0 to n (Correct)
C. 1 to ∞
D. 0 to ∞
Electromagnetic radiations propagate in vacuum with a velocity of _______________ metre/second?
A. 3 × 105
B. 3 × 108 (Correct)
C. 3 × 1010
D. 3 × 1012
Ultrafine grinders operate principally by_________________?
A. Slow compression
B. Impact
C. Attrition (Correct)
D. Cutting action
For a turbine agitated and baffled tank, operating at low Reynold’s number (based on impeller diameter), the power number (Np) varies with NRe as_________________?
A. Np ∝ NRe
B. Np ∝ √NRe
C. Np → constant
D. Np ∝ 1/NRe (Correct)