3651. To ensure complete and rapid combustion of a fuel, some quantity of air, in excess of the theoretical or minimum air is supplied.
Yes
No
✅ 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.
3652. The transfer of heat from one body to another takes place only when there is a temperature difference between the bodies.
Yes
No
✅ The correct answer is option A.
3653. In counter-current flow heat exchanger, the logarithmic temperature difference between the fluids is __________ as compared to parallel flow heat exchanger.
same
less
greater
✅ The correct answer is option C.
3654. In which of the following machine, the work remains stationary and the tool is rotated?
Vertical boring machine
Horizontal boring machine
Precision boring machine
Jig boring machine
✅ The correct answer is option B.
3655. The pitching of a ship is assumed to take place with simple harmonic motion.
Yes
No
✅ The correct answer is option A.
3656. The actual power generated in the engine cylinder is called
indicated power
brake power
frictional power
none of these
✅ The correct answer is option A.
3657. The stiffness is the ability of a material to resist
deformation under stress
fracture due to high impact loads
externally applied forces with breakdown or yielding
none of the above
✅ The correct answer is option A.
3658. The guideways are of
flat type
V-type
dovetail type
any one of these
✅ The correct answer is option D.
3659. Flank wear occurs mainly on the
nose part, front relief face and side relief face of the cutting tool
face of the cutting tool at a short distance from the cutting edge
cutting edge only
front face only
✅ The correct answer is option A.
3660. The extremeties of any diameter on Mohr’s circle represent
principal stresses
normal stresses on planes at 45°
shear stresses on planes at 45°
normal and shear stres
✅ The correct answer is option B.