3241. In a single stage impulse turbine, the velocity of steam approaching nozzles is negligible.
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.
3242. The moment of a force
is the turning effect produced by a force, on the body, on which it acts
is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force
is equal to twice the area of the traingle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken
all of the above
✅ The correct answer is option D.
3243. Induction hardening is basically a
carburising process
surface hardening process
core-hardening process
none of these
✅ The correct answer is option B.
3244. Alpha-methyl-naphthalene (C11 H10) has a cetane number of
0
50
100
120
✅ The correct answer is option A.
3245. The thermal efficiency of petrol and gas engines is about
15%
30%
50%
70%
✅ The correct answer is option B.
3246. The metal suitable for bearings subjected to heavy loads is
silicon bronze
white metal
monel metal
phosphor bronze
✅ The correct answer is option B.
3247. The clutch is located between the transmission and the
engine
rear axle
propeller shaft
differential
✅ The correct answer is option A.
3248. Which of the following statement is correct about EDM machining?
It can machine hardest materials.
It produces high degree of surface finish.
The tool and work are never in contact with each other.
all of these
✅ The correct answer is option D.
3249. When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than
0.25
0.5
1
2
✅ The correct answer is option D.
3250. Product layout is best suited where
one type of product is produced
product is standardised
product is manufactured in large quantities
all of the above
✅ The correct answer is option D.