A. 130
B. 180
C. 230
D. 250
✅ The correct answer is option C.
Basic Chemical Engineering MCQs
Lubrication is done to control
A. Friction
B. Wear
C. Temperature
D. All of the above
✅ The correct answer is option D.
The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
A. 0.2
B. 0.4
C. 0.6
D. 0.8
✅ The correct answer is option A.
Cementite is in the lamellar form in the __________ phase of steel.
A. Martensitic
B. Bainitic
C. Pearlitic
D. Ferritic
✅ The correct answer is option C.
The phenomenon of weld decay is found in case of
A. Gun metal
B. Brass
C. Stainless steel
D. Cast iron
✅ The correct answer is option D.
‘Amortization’ in respect of financial obligation of a company means the
A. Liquidation of financial obligations on instalment basis
B. Commitment of financial obligation on priority
C. Liquidation of all the obsolete equipments of the company
D. Modernisation of the plant equipments
✅ The correct answer is option A.
__________ addition increases the depth of hardness of steel.
A. Chromium
B. Nickel
C. Tungsten
D. Vanadium
✅ The correct answer is option A.
Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails
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.
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.