A. Load & elongation
B. Engineering stress & strain
C. True stress & strain
D. Poisson’s ratio & Young’s modulus
✅ The correct answer is option A.
Chemical Engineering MCQs
Percentage of argon (by volume) in dry atmospheric air is about
A. 0.09
B. 0.3
C. 0.57
D. 0.94
✅ The correct answer is option D.
Addition of beryllium to copper is done mainly to produce a/an __________ alloy.
A. Non-sparking & non-magnetic
B. High strength
C. Precipitation hardenable
D. Corrosion resistant
✅ The correct answer is option A.
Piezoelectric is a material
A. Whose properties is midway between the constituent materials
B. Which gets polarised, when stressed
C. In which magnetising force reduces when current flowing through it is in-cresed
D. Which changes dimensions due to applied field
✅ The correct answer is option B.
FeO (s) + CO (g) = Fe (s) + CO₂ (g), k = 0. 435 at 1173E; At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K?
A. 1.0
B. 1.3
C. 2.3
D. 3.3
✅ The correct answer is option D.
The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag.
A. Fluidity
B. Basicity
C. Acidity
D. Viscosity
✅ The correct answer is option A.
Which of the following is not an explosive?
A. TNT
B. CMC
C. RDX
D. Lead azide
✅ The correct answer is option B.
Role of a “collector” in froth floatation is to
A. Form a water repelling film on the mineral surface
B. Create and stabilise the froth
C. Act as a surface
D. Collect the minerals according to their specific gravity
✅ The correct answer is option A.
With increase in annealing temperature, the following defect density decreases.
A. Vacancy
B. Dislocation
C. Grain boundary
D. All of the above
✅ The correct answer is option D.
Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same
A. Period increases
B. Period decreases
C. Group increases
D. Both ‘b’ & ‘c’
✅ The correct answer is option D.