Chemical Engineering Mcqs

For the same flow rate of a fluid, the pressure drop is the least for ____________________?

(A) Venturimeter
(B) Orificemeter
(C) Flow-nozzle
(D) Δp is same for all

Submitted By :Ali Uppal

Discharge from a 24 inch pipe of water at 10 ft/sec will be _____________ ft3/sec?

(A) 7.65
(B) 32.36
(C) 48.22
(D) 125.6

Submitted By :Ali Uppal

Rubber latex is an example of ______________ fluid?

(A) Dilatants
(B) Newtonian
(C) Pseudo plastic
(D) Bingham plastic

Submitted By :Ali Uppal

Diaphragm pumps are used to transport_________________?

(A) Solids
(B) Liquids
(C) Fluids
(D) Slurries

Submitted By :Ali Uppal

The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the _____________ length?

(A) Equivalent
(B) Transition
(C) Prandtl mixing
(D) None of these

Submitted By :Ali Uppal

With decrease in particle size to be fluidised by a particular fluid, the operating range of fluidisation velocity___________________?

(A) Widens
(B) Squeezes
(C) Does not change
(D) Unpredictable from the data

Submitted By :Ali Uppal

For very low pressure and high discharge rate, the compressor used is a/an ______________ compressor?

(A) Axial
(B) Reciprocating
(C) Rotary
(D) None of these

Submitted By :Ali Uppal

A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 × 103 VOM + 10.94 × 106 V2 OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is_________________?

(A) 12 mm/s
(B) 16 mm/s
(C) 24 mm/s
(D) 28 mm/s

Submitted By :Ali Uppal

Non-colloidal solution is an example of the _______________ fluid?

(A) Non-Newtonian
(B) Newtonian
(C) Dilatent
(D) Pseudo-plastic

Submitted By :Ali Uppal

One dimensional flow implies________________________?

(A) Flow in a straight line
(B) Steady uniform flow
(C) Unsteady uniform flow
(D) A flow which does not account for changes in transverse direction

Submitted By :Ali Uppal

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