2301. The final relative humidity of the air during cooling and dehumidification is generally __________ than that of entering air.
lower
higher
✅ The correct answer is option B.
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.
2302. The malleability is the property of a material due to which it can be rolled or hammered into thin sheets.
Agree
Disagree
✅ The correct answer is option A.
2303. Cast iron is used in those parts which are subjected to shocks.
Correct
Incorrect
✅ The correct answer is option B.
2304. The cam follower extensively used in air-craft engines is
knife edge follower
flat faced follower
spherical faced follower
roller follower
✅ The correct answer is option D.
2305. The specific humidity during cooling and dehumidification
remains constant
increases
decreases
✅ The correct answer is option C.
2306. The material widely used for making pendulums of clocks is
stainless steel
high speed steel
heat resisting steel
nickel steel
✅ The correct answer is option D.
2307. The Klein’s diagram is used when
crank has uniform angular velocity
crank has non-uniform angular velocity
crank has uniform angular accleration
crank has non-uniform
✅ The correct answer is option A.
2308. Which of the following bearing is preferred for oscillating conditions?
Double row roller bearing
Taper roller bearing
Angular contact single row ball bearing
Needle roller bearing
✅ The correct answer is option D.
2309. Normal time is the ratio of representative time to the rating factor.
TRUE
FALSE
✅ The correct answer is option B.
2310. The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle)
✅ The correct answer is option C.