Benzene
Iso-octane
Normal heptane
Alcohol
✅ The correct answer is option B.
Mechanical Engineering MCQs
If the flow of air through the compressor is perpendicular to its axis, then it is a
reciprocating compressor
centrifugal compressor
axial flow compressor
turbo compressor
✅ The correct answer is option B.
Cold working of metal increases
tensile strength
yield strength
hardness
all of these
✅ The correct answer is option D.
The chuck preferred for quick setting and accurate centering of a job is
four jaw independent chuck
collect chuck
three jaw universal chuck
magnetic chuck
✅ The correct answer is option B.
In a single acting reciprocating air compressor, without clearance, the compression of air may be
isothermal
polytropic
isentropic
any one of these
✅ The correct answer is option D.
German silver contains
70% copper and 30% zinc
60% copper and 40% zinc
59% copper, 40% zinc and 1% tin
60.45% copper, 35.2% z
✅ The correct answer is option D.
Air refrigerator works on
reversed Carnot cycle
Bell Coleman cycle
both (a) and ib)
none of these
✅ The correct answer is option C.
Muntz metal (Yellow brass) contains
70% copper and 30% zinc
60% copper and 40% zinc
59% copper, 40% zinc and 1% tin
60.45% copper, 35.2% z
✅ The correct answer is option B.
Which of the following is an intensive property of a thermodynamic system?
Volume
Temperature
Mass
Energy
✅ The correct answer is option B.
The specific weight of compressible fluids does not remain constant.
TRUE
FALSE
✅ The correct answer is option A.