A. Critical temperature
B. Recrystallisation temperature
C. Phase transformation temperature
D. Transition temperature
✅ The correct answer is option A.
Engineering MCQs
X-rays do not exhibit the property of
A. Reflection
B. Scattering
C. Diffraction
D. Dispersion
✅ The correct answer is option B.
The power of a low capacity prime mover is most suitably measured by a __________ type dynamometer.
A. Driving
B. Transmission
C. Absorption
D. None of these
✅ The correct answer is option C.
Puddling process is used for converting pig iron into
A. Cast iron
B. Wrought iron
C. Mild steel
D. Semi-steel
✅ The correct answer is option C.
Out of the following, the most ductile material is
A. Mild steel
B. Copper
C. Nickel
D. Aluminium
✅ The correct answer is option A.
Spheriodising of a material is a/an __________ process.
A. Normalising
B. Annealing
C. Tempering
D. Hardening
✅ The correct answer is option B.
The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
A. Full annealing
B. Bright annealing
C. Patenting
D. None of these
✅ The correct answer is option C.
Which of the following are made out of the carbon steel having carbon content of 0.9 to 1% ?
A. Small punches, broaches reamers and springs
B. Cutlery, screws, rivets and files
C. Mandrels, twist drills, small lathe tools and razors
D. Forgings like can shaft, structural steel plate, threading dies and drawing dies
✅ The correct answer is option A.
Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation
A. Pressure falls below the vapour pressure
B. Pressure becomes very high
C. Temperature becomes low
D. All of the above
✅ The correct answer is option D.
Out of the following, the rays having the lowest wavelength is the
A. Radio waves
B. Ultrasonic waves
C. Infra red rays
D. X-rays
✅ The correct answer is option A.