1411. If b denotes the face width and L denotes the cone distance for a bevel gear, then the bevel factor is written as
b/L
b/2 L
1 – 2 b.L
1 – b/L
✅ The correct answer is option D.
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.
1412. When spring index increases, the value of Wahl’s stress factor
increases linearly
decreases linearly
remains same
increases exponentiall
✅ The correct answer is option D.
1414. The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship is given by
✅ The correct answer is option A.
1415. The sulphur sticks, in case of leakage of ammonia refrigerant, gives white smoke.
TRUE
FALSE
✅ The correct answer is option A.
1417. In a beam subjected to pure bending, the intensity of stress in any fibre is __________ the distance of the fibre from the neutral axis.
equal to
less than
more than
directly proportional
✅ The correct answer is option D.
1418. A grinding wheel is said to be of __________ if it holds the abrasive grains more securely.
soft grade
medium grade
hard grade
✅ The correct answer is option C.
1419. The essential condition for the decompression of an activity is that
the project time should change due to decompression
after decompression the time of an activity invariably exceeds its normal time
an activity could be decompressed to the maximum extent of its normal time
none of the above
✅ The correct answer is option C.
1420. An open system is one in which
heat and work crosses the boundary of the system, but the mass of the working substance does not crosses the boundary of the system
mass of the working substance crosses the boundary of the system but the heat and work does not crosses the boundary of the system
both the heat and work as well as mass of the working substance crosses the boundary of the system
neither the heat and w
✅ The correct answer is option C.