GuruMCQs.com provides all updated Mechanical Engineering Multiple Choice Questions (MCQs). The most frequently repeated mechanical MCQs section is frequently encountered in FPSC, PPSC, ETEA, NTS, Army, Navy, Air Force, educators, and various other competitive exams, as well as government and private job assessments. Most repeated mechanical engineering MCQs cover topics like Engineering Materials, Fluid Mechanics, Hydraulic Machines, Machine Design, Engineering Mechanics, Nuclear Power Plants, Steam Boilers, Engines, Nozzles, Turbines, Compressors, Gas Turbines, Jet Engines, Thermodynamics, Engineering Metrology, Heat Transfer, etc. Preparing with these MCQs can significantly contribute to your success in government job exams and interviews. Whether you are aiming to establish a career in engineering or seeking to enhance your existing skills, the Mechanical Engineering MCQs at www.gurumcqs.com serve as a valuable resource. Stay committed to regular practice and empower yourself with the knowledge needed to excel in your academic and professional endeavors.
11. A neutral flame is obtained by supplying___________________?
A. more volume of acetylene and less volume of oxygen
B. equal volumes of oxygen and acetylene
C. more volume of oxygen and less volume of acetylene
D. none of the above
12. The cold working of metals is carried out_________________?
A. below the recrystallisation temperature
B. at the recrystallisation temperature
C. at any temperature
D. above the recrystallisation temperature
13. Lancing is the operation of _________________?
A. cutting a sheet of metal through part of its length and then bending the cut portion
B. removal of metal to the desired shape from the edge of a plate
C. cutting a sheet of metal in a straight line along the length
D. bending a sheet of metal along a curved axis
14. In spot welding, the spacing between two spot weld should not be less than _______________?
A. d
B. 1.5d
C. 3d
D. 6d
15. The shrinkage allowance for cast iron pattern is________________?
A. 15 mm/m
B. 20 mm/m
C. 26 mm/m
D. 10 mm/m
16. Tandem drawing of wires and tubes is necessary because_________________?
A. accuracy in dimensions is not possible otherwise
B. surface finish improves after every drawing stage
C. it is not possible to reduce at one stage
D. annealing is needed between stages
17. The operation of straightening a curved sheet metal, is known as____________________?
A. squeezing
B. coining
C. planishing
D. drawing
18. For starting an axial flow pump, its delivery valve should be____________________?
A. closed
B. open
C. depends on starting condition and flow desired
D. could be either open or closed
E. partly open and partly closed
19. Centrifugal pump is started with its delivery valve __________________?
A. kept fully closed
B. kept fully open
C. irrespective of any position
D. kept 50% open
E. none of the above
20. When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be _________________?
A. horizontal
B. nearly horizontal
C. steep
D. first rise and then fall
E. none of the above