3821. The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is
Fc = ar + b
Fc = ar – b
Fc = ar
Fc = a/r + b
✅ 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.
3822. The multi-stage compression ofair as compared to single stage compression
improves volumetric efficiency for the given pressure ratio
reduces workdone per kg of air
gives more uniform torque
all of these
✅ The correct answer is option D.
3823. According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by
equating tearing resistance of the plate to the shearing resistance of the rivets
equating tearing resistance of the plate to the crushing resistance of the rivets
equating shearing resistance to the crushing resistance of the rivets
none of the above
✅ The correct answer is option C.
3824. The two stroke cycle engines have lighter flywheel.
Agree
Disagree
✅ The correct answer is option A.
3825. Inconel contains
65% nickel, 15% chromium and 20% iron
68% nickel, 29% copper and 3% other constituents
80% nickel and 20% chromium
80% nickel, 14% chromi
✅ The correct answer is option D.
3826. The absolute zero pressure will be
when molecular momentum of the system becomes zero
at sea level
at the temperature of – 273 K
at the centre of the e
✅ The correct answer is option A.
3827. The efficiency of a screw jack is dependent upon the load raised or lowered.
TRUE
FALSE
✅ The correct answer is option B.
3828. The impact between two lead spheres is approximately equal to an __________ impact.
elastic
inelastic
✅ The correct answer is option B.
3829. The ratio of maximum fluctuation of speed to the mean speed is called
fluctuation of speed
maximum fluctuation of speed
coefficient of fluctuation of speed
none of these
✅ The correct answer is option C.
3830. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as
lift
drag
stagnation pressure
bulk modulus
✅ The correct answer is option B.