Chemical Engineering Mcqs

The ratio of actual discharge to theoretical discharge through an orifice is equal to______________?

(A) Cc . Cv
(B) Cc . Cd
(C) Cv . Cd
(D) Cd/Cv

Submitted By :Ali Uppal

Centrifugal pump can’t be used to pump _____________________?

(A) Molten sodium (used as a coolant in Fast Breeder Reactor)
(B) Moderately viscous vegetable oil used in soap industry
(C) Thick molten soap at 80°C
(D) None of the above

Submitted By :Ali Uppal

A weir is used to measure the large water discharge rate from a river or from an open channel. A weir is not of _______________ shape?

(A) Circular
(B) Rectangular
(C) Triangular
(D) Trapezoidal

Submitted By :Ali Uppal

An ideal fluid is___________________?

(A) Frictionless & incompressible
(B) One, which obeys Newton’s law of viscosity
(C) Highly viscous
(D) None of these

Submitted By :Ali Uppal

______________ is an example of axial flow impeller?

(A) Paddle
(B) Turbine
(C) Propeller
(D) All

Submitted By :Ali Uppal

The distance between metacentre and ______________ is called metacentric height?

(A) Water surface
(B) Centre of gravity
(C) Centre of buoyancy
(D) None of these

Submitted By :Ali Uppal

Enamels and paints are generally _______________ fluid?

(A) Rheopectic
(B) Pseudo-plastic
(C) Thixotropic
(D) Dilatant

Submitted By :Ali Uppal

A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be ______________ metres?

(A) 2
(B) 4
(C) 8
(D) 5.5

Submitted By :Ali Uppal

The Reynolds number for an ideal fluid flow is _________________?

(A) 4
(B) 2100-4000
(C) 4000
(D) ∞

Submitted By :Ali Uppal

For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance) ?

(A) V/Vmax = (x/r)1/7
(B) V/Vmax = (r/x)1/7
(C) V/Vmax = (x.r)1/7
(D) None of these

Submitted By :Ali Uppal

Previous
First
....
587
588
589
590
591
....
811
Next