A. Rigid
B. Tough
C. Ductile
D. Plastic
✅ The correct answer is option C.
Engineering MCQs
Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.
A. Hot rolled mild
B. Cold rolled mild
C. Forged
D. Machinable stainless
✅ The correct answer is option B.
If a solid is compressed adiabatically in its elastic range, its __________ remains constat
A. Internal energy
B. Enthalpy
C. Entropy
D. Temperature
✅ The correct answer is option C.
Particle nature of cathode rays is proved due to the fact that they
A. Travel in a straight line
B. Get deflected by magnetic electric field
C. Produce fluorescence
D. Heat the exposed material
✅ The correct answer is option B.
Carbon supply in pack carburising process is in the form of
A. Charcoal
B. Calcium carbide
C. Hydrocarbon oil
D. Graphite
✅ The correct answer is option A.
‘Sterilised zone’ around a hazardous chemical industry is an area with __________ km radius around it, in which the total population/inhabitants should be less than 20000 preferably in the upwind direction.
A. 0.5
B. 5
C. 25
D. 50
✅ The correct answer is option B.
Yield strength of a polycrystalline metal with an average grain size, d, is proportional to
A. d1/2
B. d-1/2
C. d
D. d-1
✅ The correct answer is option B.
When an isolated thermodynamic system executes a process,
A. Work is done
B. Heat transfer takes place
C. Mass flow occurs across the boundary of the system
D. No chemical reaction takes place within the system
✅ The correct answer is option D.
Silicon percentage in the silicon steel used for electrical appliances/equipments is
A. 0.3-0.4
B. 12-14
C. 3-4
D. 20-25
✅ The correct answer is option C.
Which of the following is not the commercial name of polymethyl-methacrylate (PMMA)?
A. Styrofoam
B. Lucite
C. Perspex
D. Plexiglass
✅ The correct answer is option A.