A. Zinc
B. Nickel
C. Lead
D. Tin
✅ The correct answer is option B.
Engineering MCQs
Unbreakable crockeries are made from __________ polymers.
A. Polystyrene
B. Melamine
C. Polystyrene
D. Polyurathane
✅ The correct answer is option D.
Reduction in the grain size reduces the __________ of the material.
A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All of the above
✅ The correct answer is option D.
Internal cracks in drawn bars are due to
A. Secondary tensile stresses
B. Temperature gradient in the work piece
C. Heated dies and grips
D. Internal compressive residual stress
✅ The correct answer is option A.
Old cycle handles are coated with nickel using
A. Cementation
B. Spray coating
C. Galvanising process
D. Tinning process
✅ The correct answer is option B.
Cupola produces __________ iron.
A. Pig
B. Cast
C. Wrought
D. Carbon free
✅ The correct answer is option B.
In sheet metal forming, stretcher strains occur in
A. Duralumin sheets
B. Low carbon steel sheets
C. Austenitic stainless steel sheets
D. Ni-base alloy sheets
✅ The correct answer is option A.
The standard instrument used for calibrating the load applied by universal testing machine is called
A. Extensometer
B. Spring balace
C. Dynamometer
D. None of these
✅ The correct answer is option D.
Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding
A. Glycerol
B. Nitro cellulose
C. Camphor
D. None of these
✅ The correct answer is option D.
Steel & cast iron pipes are produced by __________ casting.
A. Slush
B. Die
C. Investment
D. True centrifugal
✅ The correct answer is option D.