A. Troosite
B. Kaolin
C. Alunite
D. Cryolite
✅ The correct answer is option A.
Basic Chemical Engineering MCQs
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
✅ The correct answer is option C.
To improve the machinability of steel, it is generally subjected to
A. Spherodising
B. Tempering
C. Normalising
D. Annealing
✅ The correct answer is option A.
Absolute zero pressure can be attained at a temperature of
A. 0°C
B. 50°K
C. 0°R
D. None of these
✅ The correct answer is option C.
__________ are normally subjected to sub-zero treatment.
A. Highly stressed parts
B. Gauges or precision parts
C. Cold rolled sheets
D. Non machinable materials
✅ The correct answer is option B.
Cathodic protection is widely used in controlling corrosion in
A. High pressure vessels
B. Marine structure & underground pipelines
C. Overhead fuel gas pipelines
D. Overhead water pipelines
✅ The correct answer is option B.
__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.
A. Collar
B. Flanged
C. Bell and Spigot
D. Expansion
✅ The correct answer is option B.
The capacity of a material to absorb energy depends upon both its strength & stiffness. The term ‘stiffness’ of a material is the opposite of its
A. Flexibility
B. Plasticity
C. Hardness
D. Hardenability
✅ The correct answer is option A.
The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by
A. Decreasing the surface area of the electrodes
B. Increasing the concentration of zinc sulphate solution
C. Increasing the surface area of the electrodes
D. Increasing the concentration of copper sulphate solution
✅ The correct answer is option D.
Ganister contains maximum percentage of
A. FeO
B. SiO₂
C. MgO
D. MnO₂
✅ The correct answer is option B.