A. Impact loading
B. Fatigue
C. Creep
D. Straining
✅ The correct answer is option B.
Chemical Engineering MCQs
Maxwell’s thermodynamic relations applies to the
A. Chemical systems in equilibrium
B. Mechanical systems in equilibrium
C. Irreversible thermodynamic processes
D. Reversible thermodynamic processes
✅ The correct answer is option A.
Coating of zinc over steel is known as
A. Cladding
B. Galvanising
C. Anodising
D. Passivation
✅ The correct answer is option B.
Device used as a standard for the calibration of pressure gauges is a
A. Bellow
B. Diaphragm
C. Dead weight pressure tester
D. Mercury manometer
✅ The correct answer is option C.
Change in volume of metals from absolute zero temperature to their melting points is
A. Almost same for all metals
B. Different for different metals
C. Less for low melting point metals
D. Less for high melting point metals
✅ The correct answer is option A.
The activity of pure hydrogen gas at 1000°C and 5 atm pressure
A. Is always less than 1
B. Is always greater than 1
C. Can be 5
D. Depends on the choice of the standard state
✅ The correct answer is option D.
In hot working, dynamic recovery occurs in
A. Metals of low stacking fault energy
B. Metals of high stacking fault energy e.g. α-iron
C. Single crystal of Ni-based superalloys
D. None of these
✅ The correct answer is option B.
In an isochoric process,
A. There is no transfer of mass and energy
B. Free expansion of an ideal gas occurs
C. No mechanical work is done by the system
D. All of the above
✅ The correct answer is option C.
Which of the following is not an ore of iron?
A. Chalcopyrite
B. Magnetite
C. Hemetite
D. Limonite
✅ The correct answer is option A.
Which of the following alloying elements reduces the formation of iron sulphide in steel?
A. Cobalt
B. Nickel
C. Manganese
D. Vanadium
✅ The correct answer is option B.