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Machine Kinematics Practice Test: Simple Mechanisms
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Simple Mechanisms topics: Simple mechanisms, kinematic links and chains, links types, mechanism, grublers criterion, single and double slider crank chain inversions, kutzbach criterion applications, kinematics chains and its types. A simple mechanism is a mechanical device that uses mechanical advantage to multiply force and change the direction or magnitude of a force. A mechanism with four links is considered a simple mechanism.  Here are some examples of simple mechanisms: Lever: A rigid body that can rotate on a point on itself. A lever is a bar or board that rests on a support called... Show more
Machine Kinematics Practice Test: Simple Mechanisms
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25 Questions

1. The number of binary links, number of binary joints and number of ternary joints in Peaucelliar mechanism is
2. Match the approaches given below to perform stated kinematics/dynamics analysis of machine.
Analysis Approach
P. Continuous relative rotation 1. D’Alembert’s principle
Q. Velocity and acceleration 2. Grubler’s criterion
R. Mobility 3. Grashof’s law
S. Dynamic-static analysis 4. Kennedy’s theorem
3. According to Kennedy’s theorem, if three bodies move relatively to each other, their instantaneous centres will lie on
4. The crankshaft of reciprocating engine having a 20 cm crank and 100 cm connecting rod rotates at 210 r.p.m. When the crank angle is 45o, the velocity of piston is nearly
5. A four-bar chain has
6. The pair is known as a higher pair, when the relative motion between the elements of a pair is
7. Which of the following statement is wrong?
8. The lead screw of a lathe with nut forms a
9. When the elements of the pair are kept in contact by the action of external forces, the pair is said to be a
10. When the nature of contact between the element of a pair is such that it can turn or revolve about a fixed axis, the pair is known as a rolling pair.
11. The magnitude of velocities of the points on a rigid link is directly proportional to the distances from the points to the instantaneous centre.
12. The Grubler’s criterion for determining the degrees of freedom (n) of a mechanism having plane motion is
13. Inversion of a kinematic chain relative to some other links is a property of the chain and is not that of the mechanism.
14. An elliptical trammel is a mechanism with three prismatic pairs and one revolute pair.
15. A mechanism consisting of four links is called a _____________ mechanism.
16. A kinematic chain is known as a mechanism when
17. Open pairs are those which have
18. When supported on three points, out of 12 degrees of freedom the number of degrees of freedom arrested in a body is
19. In a steam engine, the link constitutes a
20. The cam and follower is an example of
21. The sliding pairs, turning pairs and screw pairs form lower pairs.
22. A kinematic chain is known as a mechanism when
23. The mechanism forms a structure, when the number of degrees of freedom (n) is equal to
24. The relative acceleration of two points which are at variable distance apart on a moving link can be determined by using the
25. The mechanism in a shaping machine is

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