A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All of the above
✅ The correct answer is option D.
Chemical Engineering MCQs
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.
Addition of __________ to steel does not help in improving its machinability.
A. Sulphur
B. Silicon
C. Lead
D. Phosphorous
✅ The correct answer is option B.
The most prominent single cause of corrosion in boilertubes, drums, economisers and steam superheaters in a thermal power plant boiler is the
A. Water alkalinity & leakage
B. Hydrazine addition during feed water treatment
C. Release of non-condensable gas from water in the boiler
D. Scale formation
✅ The correct answer is option C.