4681. The relative humidity decreases as air gets wet.
TRUE
FALSE
✅ 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.
4682. A fixture is defined as a device which
holds and locates a workpiece and guides and controls one or more cutting tools
holds and locates a workpiece during an inspection or for a manufacturing operation
is used to check the accuracy of workpiece
all of the above
✅ The correct answer is option B.
4683. A diesel engine has
one valve
two valves
three valves
four valves
✅ The correct answer is option C.
4684. The vehicle ride will be comfortable if
unsprung mass is kept minimum
sprang mass is kept minimum
vehicle mass is kept minimum
all of these
✅ The correct answer is option A.
4685. The electric process of steel making is especially adopted to
alloy and carbon tool steel
magnet steel
high speed tool steel
all of these
✅ The correct answer is option D.
4686. In order to know whether a column is long or short, we must know its slenderness ratio.
TRUE
FALSE
✅ The correct answer is option A.
4687. The machining allowance provided on patterns depends upon
type of casting metal
size and shape of casting
method of casting used
all of these
✅ The correct answer is option D.
4688. Which of the following wage incentive plan guarantees minimum wage to a worker and bonus is paid for the fixed percentage of time saved?
Halsey plan
Gantt plan
Rowan plan
Emerson’s efficiency plan
✅ The correct answer is option A.
4689. In A-B-C analysis, which class of items are generally large in number?
A
B
C
none of these
✅ The correct answer is option C.
4690. An economiser __________ the steam raising capacity of a boiler.
increases
decreases
has no effect on
✅ The correct answer is option A.