2841. The top of the weir over which the water flows is known as
sill or crest
nappe or vein
orifice
none of these
✅ 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.
2842. Plutonium (Pu239) is produced
artificially
by fission of Th232
when U238 is irradiated by neutrons
as basic raw material
✅ The correct answer is option C.
2843. If the resultant of a number of forces acting on a body is zero, then the body will not be in equilibrium.
Yes
No
✅ The correct answer is option B.
2845. During suction stroke, the inside pressure of cylinder is
more than the atmospheric pressure
less than the atmospheric pressure
equal to the atmospheric pressure
none of these
✅ The correct answer is option B.
2846. The process of increasing the cross-section of a bar at the expense of its length, is called
drawing down
upsetting
spinning
peening
✅ The correct answer is option B.
2847. An irregular body may have more than one centre of gravity.
Yes
No
✅ The correct answer is option B.
2848. The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
rake angle
cutting angle
clearance angle
lip angle
✅ The correct answer is option A.
2849. The D-slide valve is also known as
inside admission valve
outside admission valve
piston slide valve
none of these
✅ The correct answer is option B.
2850. When two non-intersecting and non-coplaner shafts are connected by gears, the arrangement is known as helical gearing.
Right
Wrong
✅ The correct answer is option B.