In a Kinematic chain, a quaternary joint is equivalent to: [IES-2005] (a) One binary joint (b) Two binary joints (c) Three binary joints (d) Four binary joints IEA-13. Ans. (c)when ‘l’ number of links are joined at the same connection, the joint is equivalent to (l- 1) binary joints. IES-14. The kinematic chain shown in the above figure is a of Which of the following are examples of a kinematic chain? [IES-1998]
Mechanism S K Mondal’s Chapter 1 Select the correct answer using the codes given below : Codes: (a) 1, 3 and 4 (b) 2 and 4 (c) 1, 2 and 3 (d) 1, 2, 3 and 4 IES-15. Ans. (d) IES-16. A linkage is shown below in the figure in which links ABC and DEF are ternary Jinks whereas AF, BE and CD are binary links. The degrees of freedom of the linkage when link ABC is fixed are (a) 0 (b) 1 (c) 2 (d) 3 [IES-2002] Match List-I with List-II and select the correct answer using the codes given below the lists: [IES-2001] List-I A. 6 d.o.f. system B. 1 d.o.f. system C. 2 d.o.f. system D. Multi d.o.f. system List-II 1. Vibrating beam 2. Vibration absorber 3. A rigid body in space 4. Pure rolling of a cylinder Codes: A B C D A B C D (a) 1 2 4 3 (b) 1 4 2 3 (c) 3 2 4 1 (d) 3 4 2 1 IES-18. Ans. (d)
Mechanism S K Mondal’s Chapter 1 IES-19. The two-link system, shown in the given figure, is constrained to move with planar motion. possesses It [IES-1994] IES-19. Ans. (a) Two link system shown in the above figure has 2 degrees of freedom. IES-20. When supported on three points, out of the 12 degrees of freedom the number of degrees of reedom arrested in a body is [IES-1993] (a) 3 (b) 4 (c) 5 (d) 6 IES-20. Ans. (d) When supported on three points, following six degrees of freedom are arrested (two line movements along y-axis, two rotational movements each along x-axis and z-axis.) Grubler criterion IES-21. f = 3 (n - 1) - 2j. In the Grubler's equation for planar mechanisms given, j is the [IES-2003] (a) Number of mobile links (b) Number of links(c) Number of lower pairs (d) Length of the longest link IES-21. Ans. (c) IES-22. Match List-I with List-II and select the correct answer using the codes given below the lists: List-I A.Cam and follower B. Screw pair C. 4-bar mechanism D. Degree of freedom of planar mechanism List-II 1. Grubler's rule 2. Grashof's linkage 3. Pressure angle 4. Single degree of freedom Codes: A B C D A B C D (a) 3 4 2 1 (b) 1 2 4 3 (c) 1 4 2 3 (d) 3 2 4 1 IES-23. Ans. (a) Grashof’s law IES-24. Inversion of a mechanism is [IES-1992] (a) changing of a higher pair to lower pair (b) obtained by fixing different links in a kinematic chain (b) turning it upside down (d) obtained by reversing the input and output motion
Mechanism S K Mondal’s Chapter 1 IES-24. Ans. (b)
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- Winter '17
- SK Mondal
- Ans., slider crank chain