Chemical Engineering Mcqs

Mild steel has _______________ crystal lattice structure?

(A) Face centred cubic (fcc)
(B) Body centred cubic (bcc)
(C) Orthorhombic
(D) Cubic

Submitted By :Ali Uppal

Wrought iron is never shaped by__________________?

(A) Casting
(B) Cold working
(C) Forging
(D) Welding

Submitted By :Ali Uppal

The best guide to judge the general quality of water is the measurement of its__________________?

(A) pH value
(B) Electrical conductivity
(C) Turbidity
(D) Dissolved oxygen content

Submitted By :Ali Uppal

The maximum thickness of the metal which can be welded using ultrasonic welding is _____________ mm ?

(A) 0.5
(B) 3
(C) 10
(D) 25

Submitted By :Ali Uppal

All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?

(A) Nickel
(B) Vanadium
(C) Molybdenum
(D) Chromium

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Stainless steel is welded using__________________?

(A) Oxy-acetylene flame
(B) Oxy-hydrogen flame
(C) Arc welding
(D) Inert gas arc welding

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Fibre glass is a composite material of_________________?

(A) Glass fibre in a polymer matrix
(B) Glass fibre in a metallic matrix
(C) Polymer fibre in a glassy matrix
(D) Both ‘b’ & ‘c’

Submitted By :Ali Uppal

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m-1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is____________________?

(A) 100
(B) 900
(C) 9000
(D) 10000

Submitted By :Ali Uppal

Nuclear fission of one atom of uranium-235 produces the energy equivalent to about ____________ MeV?

(A) 20
(B) 200
(C) 500
(D) 2000

Submitted By :Ali Uppal

On being hit with a hammer, ___________________ will readily fracture?

(A) Brass
(B) Mild steel
(C) Cast iron
(D) Lead

Submitted By :Ali Uppal

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