justified
not justified
✅ The correct answer is option A.
Engineering MCQs
In a close packed hexagonal space lattice, there are
nine atoms out of which eight atoms are located at the corners of the cube and one atom at its centre
twelve atoms, all of which are located at the twelve corners of a hexagonal prism
fourteen atoms out of which eight atoms are located at the coners of the cube and six atoms at the centres of six faces
none of the above
✅ The correct answer is option D.
The air standard efficiency ofan I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)
1 – rγ – 1
1 + rγ – 1
none of these
✅ The correct answer is option C.
An under-inflated tyre will wear the tread most
near the centre
near the edges
in the lateral direction
in the cross direction
✅ The correct answer is option B.
Loam sand is a mixture of
30% sand and 70% clay
50% sand and 50% clay
70% sand and 30% clay
90% sand and 10% clay
✅ The correct answer is option B.
The expression 0.175 – 0.841/T is the Lewis form factor for
composite and full depth involute system
20° full depth involute system
20° stub system
none of the above
✅ The correct answer is option C.
In machining cast iron, no cutting fluid is required.
Correct
Incorrect
✅ The correct answer is option A.
Thread grinding requires work speed from
1 to 3 m/min
5 to 10 m/min
10 to 14 m/min
14 to 20 m/min
✅ The correct answer is option A.
In a saturated air-water vapour mixture, the
dry bulb temperature is higher than wet bulb temperature
dew point temperature is lower than wet bulb temperature
dry bulb, wet bulb and dew point temperature are same
dry bulb temperature i
✅ The correct answer is option C.
A nozzle placed at the end of a water pipe line discharges water at a
low pressure
high pressure
low velocity
high velocity
✅ The correct answer is option D.