1151. In a vapour compression system, the condition of refrigerant before passing through the condenser is
saturated liquid
wet vapour
dry saturated vapour
superheated vapour
✅ The correct answer is option D.
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.
1152. If the diameter of pressure vessel is 15 times the wall thickness, the vessel is said to be a thick shell.
Agree
Disagree
✅ The correct answer is option A.
1153. The magnitude of linear velocity of a point B on a link AB relative to point A is (where ω = Angular velocity of the link AB)
ω x AB
ω (AB)2
ω2 x AB
(ω x AB)2
✅ The correct answer is option A.
1154. A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be
0.4 radian
0.8 radian
1.6 radian
3.2 radian
✅ The correct answer is option C.
1155. The air is delivered __________ in one revolution in case of a three-lobbed rotor.
two times
three times
four times
six times
✅ The correct answer is option D.
1156. The brake power is the power available
in the engine cylinder
at the crank shaft
at the crank pin
none of these
✅ The correct answer is option B.
1157. In a Tandem type compound engine, the high pressure and low pressure cylinders
have common piston rod
are set at 90°
have separate piston rods
are set in V – arrange
✅ The correct answer is option A.
1158. A drill mainly used in drilling brass, copper or softer materials, is
flat drill
straight fluted drill
parallel shank twist drill
tapered shank twist dr
✅ The correct answer is option B.
1159. The fatigue limit of a material is greatly decreased by poor surface conditions.
Agree
Disagree
✅ The correct answer is option A.
1160. In a Proell governor, the balls are attached to the extension of lower links.
TRUE
FALSE
✅ The correct answer is option A.