Chemical Engineering Mcqs

Cassiterite is an ore of_________________?

(A) Tin
(B) Lead
(C) Molybdenum
(D) Chromium

Submitted By :Ali Uppal

The condition of diffraction from a crystal is given by______________?

(A) nλ = 2d Sin θ
(B) λ = d Sin 2θ
(C) λ = 2d Sin 2θ
(D) nλ = d Sin θ

Submitted By :Ali Uppal

The passage between the nozzle and the _______________________ is called ‘sprue’ in case of injection moulding?

(A) Runner
(B) Cylinder
(C) Mold
(D) None of these

Submitted By :Ali Uppal

Yield strength of a polycrystalline metal with an average grain size „d’, is proportional to ____________________?

(A) d1/2
(B) d-1/2
(C) d
(D) d-1

Submitted By :Ali Uppal

The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the_______________?

(A) Work hardening
(B) Bauschinger effect
(C) Creeping effect
(D) Stress recovery effect

Submitted By :Ali Uppal

Which of the following properties of a solid is not dependent on crystal imperfection ?

(A) Ductility
(B) Semi-conductivity
(C) Melting point
(D) Yield stress

Submitted By :Ali Uppal

While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to ______________ × Tm (where, Tm Melting temperature) ?

(A) 0.25
(B) 0.45
(C) 0.70
(D) 0.95

Submitted By :Ali Uppal

Electrostatic separation of minerals from each other is based on their differences in the following property ?

(A) Densities
(B) Magnetic permeabilities
(C) Electrical conductivities
(D) Hardness

Submitted By :Ali Uppal

Age hardening is connected with________________?

(A) Babbitt metal
(B) Gun metal
(C) Stainless steel
(D) Duralumin

Submitted By :Ali Uppal

A compact estimate about the amount of materials handling between various work stations is obtained from the_____________________?

(A) Gantt chart
(B) Bin chart
(C) String diagram
(D) Travel chart

Submitted By :Ali Uppal

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