coarse grained
medium grained
finegrained
✅ The correct answer is option A.
Mechanical Engineering MCQs
The connecting rod lower end is connected to the relevant __________ of crankshaft.
big end
crank arm
journal
small end
✅ The correct answer is option C.
The performance of a boiler is measured by the
amount of water evaporated per hour
steam produced in kg/h
steam produced in kg/kg of fuel burnt
all of these
✅ The correct answer is option D.
Nickel when added to copper improves
machinability
hardness
hardness and strength
strength and ductility
✅ The correct answer is option B.
The overall efficiency is defined as the ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time.
TRUE
FALSE
✅ The correct answer is option A.
If the modulus of elasticity for a given material is twice its modulus of rigidity, then bulk modulus is equal to
2C
3C
✅ The correct answer is option C.
Tachometer in a vehicle measures
speed
distance
engine r.p.m.
fuel consumption
✅ The correct answer is option C.
The perpendicular distance between the centre lines of the successive rows, is called pitch.
Agree
Disagree
✅ The correct answer is option B.
Water is __________ liquid.
a compressible
an incompressible
✅ The correct answer is option B.
The spring mostly used in gramophones is
helical spring
conical spring
flat spiral spring
volute spring
✅ The correct answer is option C.