4521. An ordinary passenger aircraft requires a cooling system of capacity.
2 TR
4 TR
8 TR
10 TR
✅ 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.
4522. In a radial cam, the follower moves
in a direction perpendicular to the cam axis
in a direction parallel to the cam axis
in any direction irrespective of the cam axis
along the cam axis
✅ The correct answer is option A.
4523. A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The minimum normal stress will be
-100 MPa
250 MPa
300 MPa
400 MPa
✅ The correct answer is option A.
4525. The ratio of bulk modulus to Young’s modulus for a Poisson’s ratio of 0.25 will be
1-Mar
2-Mar
1
3-Feb
✅ The correct answer is option B.
4526. The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant)
pv = mRT
pv = RTm
pvm = C
pv = (RT)m
✅ The correct answer is option A.
4527. The process of decreasing the cross-section of a bar and increasing its length, is called
drawing down
upsetting
spinning
peening
✅ The correct answer is option A.
4528. The clearance in the engine cylinder
increases the mean effective pressure
increases the workdone
decreases the efficiency of the engine
all of these
✅ The correct answer is option D.
4529. The operation of giving impressions of figures, letters or designs on sheet metal parts, is known as embossing.
Correct
Incorrect
✅ The correct answer is option A.
4530. The time (in minutes) for a drilling a hole is given by where h is the
length of the drill
drill diameter
flute length of the drill
cone height of the dri
✅ The correct answer is option D.