A. Zircalloy & berrylium
B. Zircalloy & heavy water
C. Zirconium & berrylium
D. Heavy water & berrelium
✅ The correct answer is option D.
Engineering MCQs
Refrigerative cooling employed during long distance transportation of food stuffs is normally done by
A. Ice
B. Liquid nitrogen
C. Liquid oxygen
D. Vacuum evaporation
✅ The correct answer is option B.
Euler number is defined as the ratio of inertia force to __________ force.
A. Pressure
B. Elastic
C. Gravity
D. Viscous
✅ The correct answer is option A.
Hoope’s cell is predominantly used for the electrolytic refining of
A. Zinc
B. Copper
C. Aluminium
D. Tin
✅ The correct answer is option C.
The ‘laughing gas’ is
A. Nitrous oxide
B. Nitric oxide
C. Nitrogen trioxide
D. Nitrogen pentoxide
✅ The correct answer is option A.
Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of
A. 90% tungsten carbide and 10% cobalt
B. 70% aluminium oxide & 30% silica
C. 30% nickel, 15% chromium & 55% tungsten
D. 65% tungsten & 35% zirconium
✅ The correct answer is option A.
A solar cell converts the sunlight directly into __________ energy.
A. Thermal
B. Electrical
C. Mechanical
D. Chemical
✅ The correct answer is option B.
Catalyst used in the catalytic converter employed in automobiles to convert CO into CO and for complete oxidation of un-burnt hydrocarbons is
A. Nickel
B. Cobalt
C. Vanadium
D. Platinum
✅ The correct answer is option D.
Which of the following is an unconventional source of energy ?
A. Thermal power
B. Hydroelectric power
C. Nuclear-fusion power
D. Solar power
✅ The correct answer is option D.
Which of the following is used to produce draught in the locomotive boilers ?
A. Chimney
B. Induced draught fan
C. Forced draught fan
D. Steam jet arrangement
✅ The correct answer is option D.