1661. The face angle of a bevel gear is equal to
pitch angle – addendum angle
pitch angle + addendum angle
pitch angle – dedendum angle
pitch angle + dedendum
✅ The correct answer is option B.
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.
1662. In a hydraulic power steering system, the power steering pump is driven by a
belt-driven by camshaft
chain-driven by crankshaft
belt-driven by driveshaft
belt-driven by cranksh
✅ The correct answer is option D.
1663. A nuclear power plant differs from a conventional steam power station only in the steam generating part.
Agree
Disagree
✅ The correct answer is option A.
1664. In machining metals, chips break due to __________ of work material.
toughness
ductility
elasticity
work hardening
✅ The correct answer is option D.
1665. Logarithmic mean temperature difference is the same as the arithmetic mean temperature difference.
Agree
Disagree
✅ The correct answer is option B.
1666. In the levers of __________ type, the mechanical advantage is less than one.
first
second
third
✅ The correct answer is option C.
1667. Combustuion of fuel takes place __________ the engine cylinder of a steam engine.
outside
inside
✅ The correct answer is option A.
1668. One effect of detonation is
delay in ignition
loss of power
overheating of engine
overcooling of engine
✅ The correct answer is option B.
1669. The acid used in automobile battery is
hydrochloric acid
hydrofluoric acid
nitric acid
sulphuric acid
✅ The correct answer is option D.
1670. A cube at high temperature is immersed in a constant temperature bath. It loses heat from its top, bottom and side surfaces with heat transfer coefficients of h1, h2 and h3 respectively. The average heat transfer coefficient for the cube is
h1 + h2 + h3
(h1h2h3)1/3
none of these
✅ The correct answer is option D.