A. 1
B. 2.5
C. 4
D. 6
✅ The correct answer is option D.
Engineering MCQs
Which of the following heat treatment processes is usually applied to castings ?
A. Tempering
B. Annealing
C. Normalising
D. Carburising
✅ The correct answer is option D.
Metal shots used in shot blasting are made of
A. Stellite
B. Steel
C. Bronze
D. Lead
✅ The correct answer is option B.
A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
A. Steel
B. Glass
C. Rubber
D. Brass
✅ The correct answer is option A.
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.
A. Pulverised fuel
B. Travelling grate stoker firing
C. Circulating fluidised bed
D. Fluidised bed
✅ The correct answer is option A.
Inspection of surface and sub-surface cracks in non-magnetic alloys is done by __________ testing method.
A. X-ray
B. Magnetic particle
C. Dye penetrant
D. Ultrasonic
✅ The correct answer is option C.
Which of the following is an example of stress corrosion ?
A. Season cracking of brass
B. Caustic embrittlement of steel
C. Both (a) & (b)
D. Neither (a) nor (b)
✅ The correct answer is option C.
Heat flow across a hollow sphere of inner radius ‘r₁’ and outer radius ‘r₂’ is directly proportional to
A. (r₂ – r₁)/(r₁ – r₂)
B. (r₂ . r₁)/(r₂ – r₁)
C. (r₁ + r₂)/(r₁ . r₂)
D. (r₁ . r₂)/(r₁ + r₂)
✅ The correct answer is option B.
Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.
A. Cementite
B. Austenite
C. Martensite
D. Pearlite
✅ The correct answer is option B.
Percentage of differential pressure lost in a venturimeter with a tapering of 15° may be about
A. 1
B. 10
C. 25
D. 50
✅ The correct answer is option B.