4321. A mandrel is used to hold
an eccentric work
a heavy work
a thin work
none of these
✅ 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.
4322. The best fuels for compression ignition engines are
straight chain paraffins
aromatics
branched chain paraffins
napthalenes
✅ The correct answer is option D.
4323. Clearance ratio is the ratio of
clearance volume to the swept volume
clearance volume to the volume at cut-off
volume at cut-off to the swept volume
swept volume to the cl
✅ The correct answer is option A.
4324. In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the condenser pressure.
equal to
lower than
higher than
✅ The correct answer is option C.
4325. The ratio of the inertia force to the __________ is called Euler’s number.
pressure force
elastic force
surface tension force
viscous force
✅ The correct answer is option A.
4326. In actual machines, mechanical advantage is __________ velocity ratio.
equal to
less than
greater than
✅ The correct answer is option B.
4327. The interchangeability can be achieved by
standardisation
better process planning
bonus plan
better product plannin
✅ The correct answer is option A.
4328. The compression ratio for the compressor is always __________ unity.
equal to
less than
more than
✅ The correct answer is option C.
4329. The moment of resistance of a balanced reinforced concrete beam is based on the stresses in
steel only
concrete only
steel and concrete both
none of these
✅ The correct answer is option C.
4330. In case of pressure vessels having closed ends, the fluid pressure induces
longitudinal stress
circumferential stress
shear stress
none of these
✅ The correct answer is option D.