2501. The fuel mostly used in blast furnace for extracting pig iron from iron ores is
hard coke
soft coke
pulverised coal
bituminous coal
✅ 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.
2502. When two non-intersecting and non-coplaner shafts are connected by gears, the arrangement is known as
spur gearing
helical gearing
bevel gearing
spiral gearing
✅ The correct answer is option D.
2503. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress across the thickness of a cylinder is
maximum at the outer surface and minimum at the inner surface
maximum at the inner surface and minimum at the outer surface
maximum at the outer surface and zero at the inner surface
maximum at the inner s
✅ The correct answer is option B.
2504. The effect of bleeding is that
it increases the thermodynamic efficiency of the turbine
boiler is supplied with hot water
it decreases the power developed by the turbine
all of the above
✅ The correct answer is option D.
2505. Cut-off ratio is the ratio of
swept volume to the volume at cut-off
volume at cut-off to the clearance volume
volume at cut-off to the swept volume
clearance volume to th
✅ The correct answer is option C.
2506. Which of the following is a water tube boiler ?
Lancashire boiler
Babcock and Wilcox boiler
Locomotive boiler
Cochran boiler
✅ The correct answer is option B.
2507. A neutral flame is obtained by supplying
equal volumes of oxygen and acetylene
more volume of oxygen and less volume of acetylene
more volume of acetylene and less volume of oxygen
none of the above
✅ The correct answer is option A.
2508. Manometric head is the actual head of water against which a centrifugal pump has to work.
Correct
Incorrect
✅ The correct answer is option A.
2509. Which part of the automobile tyre is subjected to greatest flexing action ?
Bead
Side wall
Shoulder
Tread
✅ The correct answer is option B.
2510. When a steel containing more than 0.8% carbon is cooled slowly below the lower critical point, it consists of
mainly pearlite
mainly ferrite
ferrite and pearlite
pearlite and cementite
✅ The correct answer is option D.