Chemical Engineering Mcqs

Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA) ?

(A) Styrofoam
(B) Lucite
(C) Perspex
(D) Plexiglass

Submitted By :Ali Uppal

Maximum permissible air velocity in pipelines is about ______________ metre/second ?

(A) 5
(B) 10
(C) 20
(D) 40

Submitted By :Ali Uppal

Resilience of a bolt can be increased by increasing its __________________?

(A) Length
(B) Shank diameter
(C) Head diameter
(D) None of these

Submitted By :Ali Uppal

______________________ temperature remains constant during adiabatic saturation process of unsaturated air ?

(A) Dew point
(B) Dry bulb
(C) Wet bulb
(D) None of these

Submitted By :Ali Uppal

The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is__________________?

(A) Magnesite
(B) Chrome
(C) Silica
(D) Fireclay

Submitted By :Ali Uppal

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about _______________ percent ?

(A) 1
(B) 10
(C) 30
(D) 50

Submitted By :Ali Uppal

Work done by a/an _________________ process is determined by ∫p. dv ?

(A) Adiabatic
(B) Quasi-static
(C) Isothermal
(D) Isentropic

Submitted By :Ali Uppal

In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.) ?

(A) t = 15 – 0.0065 h
(B) t = 15 + 0.0065 h
(C) t = 0.0035 h – 15
(D) t = 15 – 0.0035 h

Submitted By :Ali Uppal

Induced draft fans provided in large thermal power plant boilers have __________________ blades?

(A) Forward curved
(B) Backward curved
(C) Double curved
(D) Radial or straight

Submitted By :Ali Uppal

Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories ?

(A) A, C, B, D
(B) D, B, C, A
(C) D, C, B, A
(D) D, A, B, C

Submitted By :Ali Uppal

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