This sets of objective questions or mcqs focuses on topic theory of mechanism and machines. Definition and comparison of mechanism and machines, four bar and slider bar mechanisms.
This questions and answers may helps in you competitive exams, placements and all university online exams.
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Click here Theory of Mechanisms & Machines Part-1
SET 1 : Theory Of Mechanisms & Machines MCQs In Mechanical Part 2
1. Ability to be drawn into wire or elongated is called as _______________________
A. Stiffness
B. Ductility
C. Brittleness
D. Malleability
Ans. B
2. Ability to rupture with negligible deformation is called as _______________________
A. Stiffness
B. Ductility
C. Brittleness
D. Malleability
Ans. C
3. Rigidity of object is called as__________________________
A. Stiffness
B. Ductility
C. Brittleness
D. Malleability
Ans. A
4. Resilience is ____________________________
A. Capacity to absorb energy when deformed within elastic range
B. Ability to rupture with negligible deformation
C. Resistance to penetration, abrasion or plastic deformation
D. Capacity to absorb enery without fracture
Ans. A
5. Creep is _____________________________
A. Progressive deformation under load at high temperature
B. Ability to rupture with negigible deformation
C. Resistance to penetration, abrasion or plastic deformation
D. Capacity to absorb energy without fracture
Ans. A
6. Resistance to penetration, abrasion or plastic deformation is called as _________________________
A. Stiffness
B. Toughness
C. Hardness
D. Malleability
Ans. C
7. If the percentage elongation is more than 5%, it is ______________________
A. ductile material
B. brittle material
C. rigid material
D. elastic material
Ans. A
8. The choice of material depends on ____________________
A. Availability of materials
B. Cost of Material
C. Manufacturing Considerations
D. All of above
Ans. D
9. Manufacturing consideration plays vital role in ________________________
A. Selection of material
B. Selection of Factor of Safety
C. Analysis of forces
D. definition of problem
Ans. A
10. The property which is important to impact loads are normally designed for ________________
A. resilience
B. hardness
C. Toughness
D. stiffness
Ans. C
SET 2 : Theory Of Mechanisms & Machines MCQs In Mechanical Part 2
11. A product should be desined such that ________________ is reduced
A. Safety
B. Comfort
C. Cost
D. Appearance
Ans. C
11. A product should be designed such that ________________ is improved
A. Safety
B. Comfort
D. Efficiency
D. All of the above
Ans. D
12. The first step in design process is __________________
A. Analysis of forces
B. Selection of material
C. Detailed drawing
D. Problem Definition
Ans. D
13. The second step in design process is _________________________
A. Analysis of forces
B. Selection of material
C. Synthesis
D. Problem Definition
Ans. C
14. The third step in design process is ______________________
A. Analysis of forces
B. Selection of material
C. Detailed drawing
D. Problem Definition
Ans. A
15. The fourth step in design process is
A. Analysis of forces
B. Selection of material
C. Detailed drawing
D. Problem Definition
Ans. B
16. ___________________ is more elastic than rubber
A. Plastic
B. Wood
C. Steel
D. Copper
Ans. C
17. A _______________ material regains its shape after being deformed
A. Plastic
B. Strong
C. Tough
D. Elastic
Ans. D
18. A __________________ material retains deformation when loaded
A. Plastic
B. Strong
C. Tough
D. Elastic
Ans. A
19. A __________________ material resists failure due to loading
A. Plastic
B. Strong
C. Tough
D. Elastic
Ans. B
20. A Unconstrained rigid body in space will have ----------DOF.
A. 1
B. 2
C. 3
D. 6
Ans. D
SET 3 : Theory Of Mechanisms & Machines MCQs In Mechanical Part 2
21. A In a planer pair, number of DOF IS………
A. 3
B. 2
C. 6
D. 5
Ans. A
22. A screw pair with 0 pitch can be called as ------
A. Cylindrical Pair
B. Spherical Pair
C. Prismatic Pair
D. Revolute Pair
Ans. B
23. A The mechanism form a structure, when DOF=
A. 0
B. 1
C. 2
D. 3
Ans. A
24. Kinematic chain having N links will have
A. (N-1) Inversion
B. (N-1-1) Inversion
C. N Inversion
D. N+1Inversion
Ans. A
25. A bolt and nut forms_______
A. Spherical pair
B. Revolute pair
C. Cylindrical pair
D. Screw pair
Ans. D
26. The lead screw of a lathe with nut forms a----------
A. Sliding Pair
B. Revolute Pair
C. Prismatic Pair
D. Screw Pair
Ans. A
27. When crank rotates, the connecting rod _________________loading
A. Slides
B. Rotates
C. Oscillates
D. None of the above
Ans. C
28. The piston of slider crank mechanism ________________
A. Slides
B. Rotates
C. Oscillates
D. Fixed
Ans. A
29. The connecting rod of slider crank mechanism ________________
A. Slides
B. Rotates
C. Oscillates
D. Fixed
Ans. C
30. Slider crank mechanism consists of __________ sliding pairs.
A. 1
B. 2
C. 3
D. 0
Ans. A
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