A. Tin
B. Lead
C. Zinc
D. Glass
✅ The correct answer is option D.
Chemical Engineering MCQs
Normalising of an object does not
A. Refine coarse grain structure obtained during hot working
B. Improve ductility
C. Improve yield strength
D. Improve machanical properties
✅ The correct answer is option B.
The cathode in an electrochemical cell always carries
A. Negative charge
B. Positive charge
C. Zero charge
D. Positive or negative charge depending upon the nature of the cell
✅ The correct answer is option A.
With increase in impurities in metals, their corrosion resistances
A. Increase
B. Decrease
C. Remain same
D. May increase or decrease ; depending on the type of metal
✅ The correct answer is option B.
The following type of bonding is strongly directional in solids.
A. Vander Waal’s
B. Ionic
C. Metallic
D. Covalant
✅ The correct answer is option D.
Acetylene should never be conveyed through __________ pipe, as it forms an unstable compound that dissociates violently at the slightest shock.
A. Stainless steel
B. Copper
C. Aluminium
D. Brass
✅ The correct answer is option B.
Which of the following has the least value of ultimate tensile strength (UTS)?
A. Medium carbon steel
B. High carbon steel
C. Cast iron
D. Wrought iron
✅ The correct answer is option B.
Magnesium is present in
A. Haemoglobin
B. Chlorophyll
C. Hypo solution
D. None of these
✅ The correct answer is option B.
The most suitable material for die casting is
A. Iron
B. Copper
C. Steel
D. Nickel
✅ The correct answer is option B.
Solution loss reaction occurs
A. In the blast furnace shaft
B. During pretreatment of hot metal
C. In the L.D. process
D. During deoxidation in the ladle
✅ The correct answer is option A.