A. Ceramics
B. High speed steel
C. Cemented carbide
D. None of these
✅ The correct answer is option B.
Engineering MCQs
The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element.
A. Silicon
B. Carbon
C. Phosphorous
D. Chromium
✅ The correct answer is option B.
With increase in carbon percentage in steel, its
A. Yield stress decreases
B. Elongation percent increases
C. Tensile strength increases
D. Impact strength increases
✅ The correct answer is option C.
Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.
A. Bomb
B. Throttling
C. Junker’s
D. Boy’s
✅ The correct answer is option B.
Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.
A. Vicker’s
B. Rockwell
C. Knoop
D. Brinell
✅ The correct answer is option B.
Which of the following is not an ore of aluminium?
A. Troosite
B. Kaolin
C. Alunite
D. Cryolite
✅ The correct answer is option A.
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
✅ The correct answer is option C.
To improve the machinability of steel, it is generally subjected to
A. Spherodising
B. Tempering
C. Normalising
D. Annealing
✅ The correct answer is option A.
Absolute zero pressure can be attained at a temperature of
A. 0°C
B. 50°K
C. 0°R
D. None of these
✅ The correct answer is option C.
__________ are normally subjected to sub-zero treatment.
A. Highly stressed parts
B. Gauges or precision parts
C. Cold rolled sheets
D. Non machinable materials
✅ The correct answer is option B.