1311. The thermostatic expansion valve is also called
constant pressure valve
constant temperature valve
constant superheat valve
none of these
✅ 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.
1312. The Diesel engine works on
Otto cycle
Carnot cycle
Diesel cycle
Rankine cycle
✅ The correct answer is option C.
1313. The basic purpose of a four wheel drive (4WD) system is that it
delivers improved cornering on dry road surfaces
eliminates the need of snow tyres, tyre chains, etc.
ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces
ensures that effective
✅ The correct answer is option C.
1314. A flange coupling is used to connect two shafts
which are perfectly aligned
which are not in exact alignment
have lateral misalignment
whose axes intersect a
✅ The correct answer is option A.
1315. The mercury does not wet the glass. This is due to the property of the liquid known as
cohesion
adhesion
viscosity
surface tension
✅ The correct answer is option D.
1316. The flow of water through the hole in the bottom of a wash basin is an example of
steady flow
uniform flow
free vortex
forced vortex
✅ The correct answer is option C.
1317. A hydraulic intensifier is a device used to increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure.
Correct
Incorrect
✅ The correct answer is option A.
1318. The defect which takes place due to imperfect packing of atoms during crystallisation is known as
line defect
surface defect
point defect
none of these
✅ The correct answer is option C.
1319. Stress concentration factor is defined as the ratio of
maximum stress to the endurance limit
nominal stress to the enurance limit
maximum stress to the nominal stress
nominal stress to the
✅ The correct answer is option C.
1320. The jet ratio is defined as the ratio of the
diameter of jet to the diameter of Pelton wheel
velocity of jet to the velocity of Pelton wheel
diameter of Pelton wheel to the diameter of jet
velocity of Pelton whe
✅ The correct answer is option C.