1051. The ratio of the __________ to the volume at cut-off is called expansion ratio.
swept volume
clearance volume
✅ The correct answer is option A.
Mechanical Engineering
Prepare with the best Mechanical Engineering MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers core topics such as engineering mechanics, thermodynamics, strength of materials, theory of machines, fluid mechanics, heat transfer, manufacturing processes, machine design, and power plant engineering. These Mechanical Engineering multiple-choice questions are designed for students, fresh graduates, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving ability with our updated and comprehensive Mechanical Engineering MCQs.
1052. In order to collect liquid refrigerant and to prevent it from going to a __________ , a device known as accumulator is used at the suction of compressor.
compressor
condenser
expansion valve
evaporator
✅ The correct answer is option A.
1053. The process of removing the burnt gases from the engine cylinder by the fresh charge coming into the engine cylinder from the crank-case, is known as
cleaning
priming
scavenging
detonation
✅ The correct answer is option C.
1054. The purpose of turning radius gauges is to measure the
contact areas of the tyres
free play of the steering wheel
turning radius of the left and right wheels
difference in the toe
✅ The correct answer is option C.
1055. For a square key made of mild steel, the shear and crushing strength are related as
shear strength is equal to crushing strength
shear strength is greater than crushing strength
shear strength is less than crushing strength
none of the above
✅ The correct answer is option A.
1056. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
0.5 times
equal to
2 times
double
✅ The correct answer is option C.
1057. A coupling used to connect two perfectly aligned shafts, is
muff coupling
compression coupling
flange coupling
all of these
✅ The correct answer is option D.
1058. When two pulleys are connected by means of an open belt drive, then both the pulleys will rotate is opposite directions.
Right
Wrong
✅ The correct answer is option B.
1059. In gas turbines, the work input with intercooling is __________ the work input with no intercooling.
less man
more than
✅ The correct answer is option A.
1060. The compressor capacity is defined as the
actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions
volume of air delivered by the compressor
volume of air sucked by the compressor during its suction stroke
none of the above
✅ The correct answer is option B.