A. Higher efficiency
B. Less fuel consumption
C. Higher power to weight ratio
D. Lower initial cost
✅ The correct answer is option C.
Engineering MCQs
Silicon percentage in acid resistant cast iron is about
A. 4
B. 8
C. 14
D. 20
✅ The correct answer is option A.
The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called
A. Resilience
B. Toughness
C. Ductility
D. Impact strength
✅ The correct answer is option A.
Ceramic compounds as compared to metallic compounds
A. Crystallise faster
B. Resist greater tensile stress at room temperature
C. Have higher melting temperature
D. Are better conductor of electricity at higher temperature
✅ The correct answer is option C.
Air standard Otto cycle is more efficient than the diesel cycle for the same
A. Heat addition & compression ratio
B. Heat addition & pressure
C. Compression ratio & pressure
D. Cylinder dimension & rpm
✅ The correct answer is option A.
The product of a commercial direct reduction process is
A. Liquid iron
B. Solid iron
C. Sponge iron
D. Iron saturated with carbon
✅ The correct answer is option C.
Mechanism/phenomenon involved in the improvement of fatigue strength of a material by shot peening is the
A. Induction of residual compressive stress on the surface
B. Removal of stress concentration from the surface
C. Grain refinement
D. Surface polishing
✅ The correct answer is option A.
Toughness of a material is measured by the
A. Vicker’s hardness test
B. Scratch test
C. Universal testing machine
D. Notched bar test
✅ The correct answer is option C.
Which of the following hardness tests uses the depth of penetration caused by the indentor as the parameter for arriving at the hardness value of a material ?
A. Shore sceleroscope test
B. Vicker’s hardness test
C. Brinell hardness test
D. Rockwell hardness test
✅ The correct answer is option D.
Constituents of stellite are
A. Zinc, copper & nickel
B. Cobalt, chromium & tungsten
C. Zinc, aluminium & nickel
D. Nickel, cobalt & vanadium
✅ The correct answer is option B.