3211. The operation of cutting a sheet of metal in a straight line along the length, is known as
plunging
notching
slitting
forming
✅ The correct answer is option C.
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.
3212. The inertia force is equal to the accelerating force in magnitude, but opposite in direction.
Right
Wrong
✅ The correct answer is option A.
3213. Kirchhoff’s law states that
the total radiation from a black body per second per unit area is directly proportional to the fourth power of the absolute temperature
the wave length corresponding to the maximum energy is proportional to the absolute temperature
the ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body
none of the above
✅ The correct answer is option C.
3214. A mechanism __________ for transmitting or transforming motion.
can be used
can not be used
✅ The correct answer is option A.
3215. When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl’s stress factor, and W = Axial compressive load on the spring)
✅ The correct answer is option D.
3216. The rise of liquid along the walls of a revolving cylinder about the initial level is __________ the depression of the liquid at the axis of rotation.
same as
less than
more than
✅ The correct answer is option A.
3217. In a receiver type compound engine, the high pressure and low pressure cylinders
have common piston rod
are set at 90°
have separate piston rods
are set in V – arrange
✅ The correct answer is option C.
3218. The surface tension of mercury at normal temperature is __________ that of water.
same as
lower than
higher than
✅ The correct answer is option C.
3220. Oil separator in a refrigeration cycle is installed
before compressor
between compressor and condenser
between condenser and evaporator
between condenser and
✅ The correct answer is option B.