✅ The correct answer is option B.
Mechanical Engineering MCQs
The dual combustion cycle consists of one constant pressure, two constant volume and two isentropic processes.
Agree
Disagree
✅ The correct answer is option A.
The average value of diagram factor lies between
0.2 to 0.5
0.5 to 0.65
0.65 to 0.9
0.8 to 1.2
✅ The correct answer is option C.
Face centred cubic space lattice is found in gamma-iron, aluminium, copper, lead, silver and nickel.
TRUE
FALSE
✅ The correct answer is option A.
A feather key is generally
loose in shaft and tight in hub
tight in shaft and loose in hub
tight in both shaft and hub
loose in both shaft an
✅ The correct answer is option B.
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)
rγ – 1
1 – rγ – 1
✅ The correct answer is option D.
In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the angle of advance of the eccentric but reducing the throw of the eccentric and keeping the steam lap and exhaust lap constant. This method will cause withdrawing or throttling of steam.
Agree
Disagree
✅ The correct answer is option A.
A reactor capable of converting a fertile material into fissile isotopes is called regenerative reactor.
Yes
No
✅ The correct answer is option A.
A simply supported beam is one which is supported on more than two supports.
TRUE
FALSE
✅ The correct answer is option B.