A. Below the yield point
B. Above the yield point
C. Below the elastic limit
D. At the elastic limit
✅ The correct answer is option A.
Chemical Engineering MCQs
Hot extrusion of aluminium is done in the temperature range of __________ °C.
A. 550-600
B. 450-500
C. 350-400
D. 250-300
✅ The correct answer is option C.
Springs are not made of
A. Phospher bronze
B. Nickel steel
C. Monel
D. Carbon steel (c ≤ 0.5%)
✅ The correct answer is option D.
Brittleness induced due to the presence of sulphur in steel can be reduced by adding
A. Manganese
B. Magnesium
C. Vanadium
D. Copper
✅ The correct answer is option A.
Cadmium in zinc leach liquor is removed by cementation using
A. Zinc
B. Iron
C. Nickel
D. Copper
✅ The correct answer is option A.
Wrought iron is not
A. Uctile & resistant to corrosion/rusting
B. Weldable easily
C. Having uniform strength in all directions
D. Having maximum tensile strength along the lines of slag distribution
✅ The correct answer is option C.
__________ is a non volatile film forming constituent of a paint.
A. Thinner
B. Dryer
C. Drying oil
D. None of these
✅ The correct answer is option C.
In a fuel cell, chemical energy is converted into
A. Electrical energy directly
B. Mechanical energy
C. Electrical energy and stored therein
D. None of these
✅ The correct answer is option A.
Which of the following metals can not be hot worked at room temperature?
A. Zinc
B. Nickel
C. Lead
D. Tin
✅ The correct answer is option B.
Unbreakable crockeries are made from __________ polymers.
A. Polystyrene
B. Melamine
C. Polystyrene
D. Polyurathane
✅ The correct answer is option D.