MCQ for Unit 1

1. MCQ for Unit 1 By, Prof. R.S. Chaudhari. Asst. professor Mechanical Engineering Department

2. ____ is a device which receives energy in some available form and utilizes it to do some particular type of work. Mechanism Machine Both (a) and (b) None of the above

3. 2. ____ is a device which consists of fixed and moving parts that modifies energy and transmits it in a useful form. Mechanism Machine Both (a) and (b) None of the above

4. ____ includes the study of motions and forces concerning different parts of an existing mechanism. Analysis Synthesis Both (a) and (b) None of them

5. 4. _____ includes the design of different parts of mechanism. Analysis Synthesis Both (a) and (b) None of the above

6. Which of the following statement is correct? Machine and mechanism are same Machine is a part of mechanism Mechanism is a part of machine None of the above

7. 6. _____ is the branch of mechanism concerned with physical system that are in static equilibrium. Kinetics Kinematics Statics All of the above

8. 7. _____ is the branch of mechanics concerned with motion, without considering the effect of force or mass. Kinetics Kinematics Statics All of the above

9. _____ is the branch of mechanics concerned with forces (including mass effect) that causes motion of a body. Kinetics Kinematics Statics All of the above

10. The body which do not suffer appreciable distortion or change in physical form by the forces acting on them is called as ______. Rigid box Resistant body Both (a) and (b) None of the above

11. Kinematics link is also called as _____. Kinematics pair Structure Element Kinematics chain

12. _____is the resistant body. Spring Belt Fluid used in hydraulic press All of the above

13. _____is a resistant body which become a part of a machine connecting other parts which have motion relative to it. Joint Kinematic pair Link All of the above

14. _____ is the type of kinematic link. Rigid link Flexible link Fluid link All of the above

15. 14. _____ does not undergo an appreciable deformation while transmitting motion and forces. Rigid link Flexible link Fluid link All of the above

16. _____ partly deforms in such a way that they do not affect the required transmission of motion. Rigid link Flexible link Fluid link All of the above

17. _____ transmits the motion by fluid pressure or compression. Rigid link Flexible link Fluid link All of the above

18. 17. Belt, rope and chain are examples of _____. Rigid link Flexible link Fluid link All of the above

19. Fluid used in hydraulic jacks, hydraulic press and brakes is _____. Rigid link Flexible link Fluid link All of the above

20. 19. Crank and connecting rod of IC engine are _____. Rigid link Flexible link Fluid link All of the above

21. 20. _____ is an assemblage of resistant bodies which have no relative motion between them Machine Structure Joint Pair

22. 21 The purpose of link is to................... a) transmit motion b) guide other link c) act as a support d)all of these

23. Q.22 Piston from a single slider crank kinematic chain is a..................link a) binary b) ternary c) quaternary d) fluid

24. Q.23 ..............link can transmit only compressive force. a) Rigid b) Flexible c) Fluid d) Both a and b

25. Q.24 Slotted disk from double slider kinematic chain is a ........... link a) Binary b) ternary c) Quaternary d) Flexible

26. Q.25 Track rod of ‘David steering gear mechanism’ is a ...............link. a) Binary b) Ternary c) Quaternary d) Fluid

27. 26 Link of a mechanism should be............... a)Rigid b)Resistance c) Separate part d) all of these

28. Q.27 The link of a structure transmit ............... a) Forces only b) Motion only c) Forces and Motion d) None of above

29. Q.28 The link of machine may transmit ................ a) force only b) Motion only c)Forces and Motion d) None of above

30. Q.29 Hydraulic press is ........ a) Rigid link b) Flexible link c) Fluid link d) None of above

31. Q.30 The motion of a bar with rectangular cross section, sliding in corresponding rectangular slot is a example of.......................... a)Successfully constrained motion b) un-constrained motion c) incompletely constrained motion d) completely constrained motion

32. Q.31 Piston and cylinder pair from an IC engine is an example of....................... a) completely constrained motion b) un-constrained motion c) Normally constrained motion d) Successfully constrained motion

33. Q.32 The rectilinear motion of a piston is converted into rotary by........... a) Crank b) Piston rod c) Connecting rod d) Cross head

34. Q.33 The motion of a piston in the cylinder is an example of................... a) completely constrained motion b) incompletely constrained motion c) Successfully constrained motion d)None of these

35. Q.34 The motion of shaft in a circular hole is an example of ................... a) incompletely constrained motion b) completely constrained motion c) Successfully constrained motion d) None of above

36. Q.35 A round bar passes through the cylindrical hole. Which one of the following statement is correct in this regard. a) The two links shown from a kinematic pair b) The pair is completely constrained c) The pair has in completely constraint d) The pair is successfully constrained

37. Q.36 Consider the following statements out of these statements which is correct. 1) A round bar in a round hole form a turning pair. 2) A square bar in a square hole form a sliding pair. 3) a vertical shaft in a foot step bearing forms a successful constraint. a)1 and 2 correct b)2 and 3 correct c)1 and 3 correct d)1,2 and 3 correct

38. Q.37 A circular bar in a round hole is an example of.................. a) incompletely constrained motion b) completely constrained motion c) Successfully constrained motion d) None of above

39. Q.38 If some links are connected such that motion between them can take place in more than one direction, it is called........................... a) incompletely constrained motion b) completely constrained motion c) Successfully constrained motion d) None of above

40. Q.39 A completely constrained motion can be transmitted with .................... a) 1 link with pin joints b ) 2 link with pin joints c) 3 link with pin joints d) 4 link with pin joints

41. Q.40 Rectangular bar in a rectangular hole is the following type of motion. a) incompletely constrained motion b) completely constrained motion c) Successfully constrained motion d) frrely

42. 41)A foot step bearing and rotor of vertical turbine form examples of a)incompletely constrained motion b)partially constrained motion c)completely constrained motion d)successfully constrained motion

43. 42)Which of the following is an example of completely constrained motion? a)Rotor and vertical turbine b)A foot step bearing c)A shaft with collars at each end rotating in a round hole d)A circular bar moving in a round hole

44. 43)The motion of a rotating shaft in a foot step bearing constitutes between the elements of kinematic pair a)successfully constrained motion b)completely constrained motion c)incompletely constrained motion d)None of the above

45. 44)The motion of circular shaft with collars at each end rotating in a round hole constitutes between the elements of kinematic pair a)successfully constrained motion b)completely constrained motion c)incompletely constrained motion d)None of the above

46. 45)The motion of a piston in cylinder of a steam engine is an example of a)successfully constrained motion b)completely constrained motion c)incompletely constrained motion d)None of the above

47. 46)The motion of circular shaft in a circular hole constitutes between the elements of kinematic pair a)successfully constrained motion b)completely constrained motion c)incompletely constrained motion d)None of the above

48. 47)Kinematic pairs are those which have a)point or line contact between the two elements when in motion b)surface contact between the two elements when in motion c)elements of pairs not held together mechanically d)two elements that permit relative motion

49. 48)Kinematic pair is formed by a)connecting rigidly two elements b)connecting not more than two elements permitting relative motion c) connecting two or more elements permitting relative motion d) two or more elements without relative motion

50. 49)The elements or links which are connected together in such way that their relative motion is the completely constrained , form a a)Kinematic pair b)machine c)mechanism d)kinematic chain