UNIT I Fundamentals of Kinematics and Mechanisms MCQ

 UNIT I Fundamentals of Kinematics and Mechanisms 

((Q))1 The purpose of a link is to 

 ((A))Transmit motion ((B))Guide other links ((C))Act as a support ((D))All the above 

ANSWER D

((Q))2 In the kinematic pair, if the elements have line or point contact when in motion, the pair is called 

((A))Lower pair ((B))Higher pair ((C))Open pair ((D))Close pair 

ANSWER B 

 ((Q))3_________ transmits the motion by fluid pressure or compression 

((A))Rigid link ((B))Flexible link ((C))Fluid link ((D))None of these 

ANSWER C 

 ((Q))4 In a reciprocating engine 

 ((A))Crankshaft and flywheel form two kinematic links

((B))Crankshaft and flywheel form one kinematic link 

((C))Crankshaft and flywheel do not form kinematic link 

((D))Crankshaft and flywheel separately forms two kinematic links

 ANSWER B 

 ((Q))5 Joints of two elements that permits relative motion which is completely constrained or successfully constrained is called 

((A))Mechanism ((B))Machine ((C))Structure ((D))Kinematic pair 

ANSWER D 

 ((Q))6 Which of the following is a turning pair? 

((A))Piston and cylinder of a reciprocating steam engine 

((B))Shaft with collars at both ends fitted into a circular hole

 ((C))Lead screw of a lathe with nut

 ((D))Ball and a socket joint

 ANSWER B

 ((Q))7 The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as

 ((A))Sliding pair ((B))Turning pair ((C))Rolling pair ((D))Screw pair

ANSWER B 

((Q))8 Pulley in a belt drive acts as 

 ((A))Sliding pair ((B))Turning pair ((C))Rolling pair ((D))Screw pair 

ANSWER C 

((Q))9 Which one is the globular pair

 ((A))Bolt and nut ((B))Lead screw of a lathe ((C))Ball and socket joint ((D))Ball bearing 

ANSWER C 

((Q))10  When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a 

((A))Sliding pair ((B))Turning pair ((C))Rolling pair ((D))Screw pair 

ANSWER D 

 ((Q))11 The lead screw of a lathe with nut forms a 

((A))Sliding pair((B))Turning pair ((C))Rolling pair ((D))Screw pair 

ANSWER D 

 ((Q))11 A ball socket joint forms 

((A))Sliding pair ((B))Rolling pair ((C))Turning pair ((D))Spherical pair 

ANSWER D  

((Q)) 12 A bolt and nut forms 

((A))Screw pair ((B))Rolling pair ((C))Spherical pair ((D))Sliding pair 

ANSWER A

((Q))13 Spherical pair is also known as 

 ((A))Revolute pair ((B))Helical pair ((C))Rolling pair ((D))Globular Pair 

ANSWER D

((Q))14 Elements of pairs held together mechanically is known as 

((A))Open pair ((B))Mechanical ((C))Closed pair ((D))Semiclosed pair

 ANSWER C

(Q))15 In the kinematic pair, if the element have surface contact when in motion, the pair is called ((A))Lower pair ((B))Higher pair ((C))Closed pair ((D))Open pair 

ANSWER A 

((Q))16 The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as

((A)) Screw pair ((B)) Rolling pair ((C)) Turning pair ((D)) Sliding pair 

ANSWER C

((Q))17 Ackerman steering gear consist of 

((A))Sliding pair ((B))Screw pair((C))Turning pair ((D))Rolling pair

ANSWER C

((Q))18 Davis steering gear consist of …………………………… 

((A))Turning pair ((B))Sliding pair ((C))Rolling pair ((D))A and B

ANSWER D

((Q))19 Gears in mesh is a type of ……………………. 

((A))Lower pair ((B))Higher pair ((C))Open pair ((D))Close pair

ANSWER B

((Q))20 From the kinematic pairs given below, choose the lower pair 

((A))Ball bearing ((B))Piston & cylinder ((C))Toothed gear in mesh ((D))Cam & follower 

ANSWER B

((Q)21 A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a

((A))Structure ((B))Kinematic chain ((C))Inversion ((D))Mechanism

ANSWER D

((Q)22 ____________ is an assemblage of resistant bodies which have no relative motion between them.

((A))Structure ((B))Machine ((C))Kinematic chain ((D))Inversion 

ANSWER A

 ((Q))23 To form Structure minimum ------------ links are required.

((A))4 ((B))3 ((C))6 ((D))2 

ANSWER B

 ((Q))1_//A mechanism is an assemblage of

((A))Kinematic pairs ((B))Structure((C))Inversion ((D))Machine 

ANSWER A

((Q))1_//The of assemblage mechanism is called as _ 

((A))Structure ((B))Kinematic chain ((C))Machine ((D))Inversion 

ANSWER C

((Q))2_//I C engine is an example of

 ((A))Structure ((B))Machine ((C))Kinematic chain ((D))Mechanism 

ANSWER B

 ((Q))1_//Roof trusses used in various applications is an example of

 ((A))Machine ((B))Structure ((C))Mechanism ((D))Kinematic pair 

ANSWER B

((Q))1_//If some links are connected such that motion between them can take place in more than one direction, it is called 

((A))Completely Constrained motion ((B))Incompletely Constrained motion ((C))Successfully Constrained motion ((D))Partially Constrained motion 

ANSWER B

 ((Q))1_//The motion of a shaft in a circular hole is an example of

 ((A))Completely Constrained motion ((B))Incompletely Constrained motion ((C))Successfully Constrained motion ((D))Partially Constrained motion 

ANSWER B

((Q))1_//The motion of a rotating shaft in a foot step bearing constitutes between the element kinematic pair 

 ((A))Completely Constrained motion ((B))Incompletely Constrained motion ((C))Successfully Constrained motion ((D))Partially Constrained motion 

ANSWER C 

((Q))1_//The motion of a circular shaft with collar at each end rotating in a round hole constitutes between the elements of kinematic pair

 ((A))Completely Constrained motion ((B))Incompletely Constrained motion((C))Successfully Constrained motion ((D))Partially Constrained motion 

ANSWER A

((Q))1_//The relation between the number of links (l) and the number of binary joints (j) in a kinematic chain having constrained motion is given by, 3/2 j= l - 2. If the left hand side of this equation is greater than the right hand side, then the chain is

 ((A))Locked chain ((B))Completely constrained motion ((C))Incompletely constrained chain ((D))Successfully constrained motion 

ANSWER A

 ((Q))1_//____________ is an arrangement in which kinematic pairs are connected such that last link is joined to the first link to transmit Completely or Successfully Constrained motion. 

 ((A))Kinematic link ((B))Mechanism ((C))Kinematic pair ((D))Kinematic chain 

ANSWER D

((Q))1_//A kinematic chain is known as a mechanism when

 ((A))None of the links is fixed ((B))Two of the links are fixed ((C))One of the link is fixed ((D))None of these 

ANSWER C 

((Q))1_//The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is 

((A))l = 2p – 2 ((B))l = 2p – 3 ((C))l = 2p – 4 ((D))l = 2p – 5 

ANSWER A

 ((Q))1_//In a kinematic chain a ternary joint is equivalent to

 ((A))Two binary joints ((B))Three binary joints ((C))One binary joint ((D))None of the above 

ANSWER A

((Q))1_//The Grubler’s criterion for determining the degrees of freedom (n) of a mechanism having plane motion is

 ((A))n = (l – 1)-j ((B))n = 2(l – 1) - 2j ((C))n = 3(l – 1) - 2j ((D))n = 4(l – 1) - 3j 

ANSWER C

 ((Q))1_//An unconstrained rigid link in the plane has _____ degrees of freedom 

((A))2((B))3 ((C))4 ((D))5

ANSWER B

(Q))1_//The four bar mechanism will have________ degrees freedom

 ((A))2 ((B))1 ((C))-1 ((D))0 

ANSWER B

((Q))1_//A structure has ________ degrees of freedom

((A))0 ((B))1 ((C))3 ((D))2 

ANSWER A

 ((Q))1_//A statically indeterminate structure has ________ degrees of freedom 

((A))0 ((B))-1 ((C))3 ((D))2 

ANSWER B

((Q))1_//A Kinematic chain having -1 Number of Degrees of Freedom is called as…………………. ((A))Machine ((B))Structure ((C))Mechanism ((D))Statically indeterminate structure 

ANSWER D 

((Q))1_//___________ states that, in the planer four bar linkages the sum of the shortest and longest link length cannot be greater than sum of remaining two link lengths if there is a continuous relative motion between them

((A))Grashoff's law ((B))Kutzbach criterion ((C))Grubbler's criterion ((D))None of the above 

ANSWER A

 ((Q))1_//Grashoff’s law is applicable for

((A))Slider crank mechanism ((B))Double slider crank mechanism ((C))A & B both ((D))Four Bar mechanism 

ANSWER D

 ((Q))1_//The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain, is known as 

((A))Inversion((B))Compound mechanism ((C))Machine ((D))Structure

ANSWER A

((Q))1_//The inversion of a mechanism is

((A))Changing of a higher pair to a lower pair ((B))Turning it upside down ((C))Obtained by fixing different links in a kinematic chain ((D))Obtained by reversing the input and output motion 

ANSWER C 

((Q))1_//If the number of links in a mechanism is l, then the number of possible inversions are equal to ((A))l-1 ((B))l-2 ((C))l ((D))l+1 

ANSWER C

((Q))1_//Rectilinear motion of piston is converted into rotary by 

((A))Cross head ((B))Connecting Rod ((C))Cranks ((D))Four bar mechanism 

ANSWER B

((Q))1_//A slider crank mechanism consists of the following numbers of turning and sliding pair ((A))4 and 0 ((B))1 and 3 ((C))2 and 2 ((D))3 and 1 

ANSWER D

((Q))1_//Which of the following is an inversion of a single slider crank chain? 

((A))Pendulum pump ((B))Oscillating cylinder engine ((C))Rotary internal combustion engine ((D))All the above

ANSWER D

((Q))1_//Which of the following is an inversion of double slider crank mechanism

((A))Beam engine ((B))Elliptical trammel ((C))Whitworth quick return ((D))Watt’s indicator mechanism 

ANSWER B

((Q))1_//The Whitworth quick return motion mechanism is formed in a slider crank chain when the ((A))Coupler link is fixed link ((B))Longest link is a fixed link((C))Slider is a fixed link ((D))Smallest link is a fixed link 

ANSWER D

((Q))1_//Quick return mechanism is used in 

((A))Slotter ((B))Grinding ((C))Milling ((D))Broaching 

ANSWER A

((Q))1_//The mechanism in which two are turning pairs and two are sliding pairs, is called as ((A))Oldham’s coupling ((B))Beam engine ((C))Rotary internal combustion engine ((D))Oscillating cylinder engine

ANSWER A

((Q))1_//Oldham's coupling is the inversion of 

((A)) Double slider crank chain ((B)) Single slider crank chain ((C))Four bar crank chain ((D))All of the above 

ANSWER A

((Q))1_//Elliptical trammel is an _____ inversion of double slider crank chain

 ((A))Fourth ((B))First ((C))Second ((D))Third

ANSWER B

((Q))1_//Oldham’s coupling is used to connect two shafts which are

 ((A))Intersecting ((B))Parallel ((C))Coaxial ((D))Perpendicular 

ANSWER B

((Q))1_// Rotary engine is a ______

 ((A))Fourth inversion of single slider crank chain ((B))First inversion of single slider crank chain ((C))Third inversion of single slider crank chain ((D))Second inversion of single slider crank chain ANSWER D

((Q))1_//Crank & Slotted lever mechanism is a (

(A))First inversion of single slider crank chain ((B))Second inversion of single slider crank chain ((C))Third inversion of single slider crank chain((D))Fourth inversion of single slider crank chain ANSWER C

((Q))1_//Hand pump is a (

(A))First inversion of single slider crank chain ((B))Second inversion of single slider crank chain ((C))Third inversion of single slider crank chain ((D))Fourth inversion of single slider crank chain ANSWER D

 ((Q))1_//Oldham’s coupling consists of 

 ((A))2 turning, 2 sliding ((B))1 turning, 3 sliding ((C))1 sliding, 3 turning ((D))0 sliding, 4 turning ANSWER A

 ((Q))1_//Watt's indicator is an inversion of 

((A))Four bar chain ((B))Slider crank chain ((C))Double slider crank ((D))None of these

ANSWER A 

((Q))1_//An approximate straight-line motion mechanism is a

((A))Scott-Russell's ((B))Hart's mechanism ((C))Peaucellier's mechanism ((D))Robert mechanism ANSWER D 

((Q))1_//Which one is an exact straight line mechanism

((A))Scott russel mechanism ((B))Hart's mechanism ((C))Peaucellier's mechanism ((D))All the above ANSWER D

((Q))1_//_______ is not an exact straight line mechanism

((A))Scott russel mechanism ((B))Hart's mechanism ((C))Peaucellier's mechanism ((D))Robert mechanism 

ANSWER D

((Q))1_//_______ is not an approximate straight line mechanism 

((A))First inversion of single slider crank chain ((B))Robert mechanism ((C))Grasshopper mechanism ((D))Watt's mechanism

ANSWER A

((Q))1_//The number of links in pantograph mechanism is equal to

 ((A))3 ((B))6 ((C))4 ((D))5 

ANSWER C

((Q))1_//Pantograph is an inversion of __________ 

((A))Slider crank chain ((B))Four bar chain ((C))Double slider crank chain ((D))None of these 

ANSWER B

(Q))1_//In a pantograph, all the pairs are

 ((A))Sliding pair ((B))Turning pair ((C))Rolling pair ((D))Spherical pair 

ANSWER B

((Q))1_//Which of the following mechanism is made up of turning pairs only 

((A))Hart's mechanism((B))scott russel mechanism ((C))Peaucellier's mechanism ((D))A & C (

ANSWER D

((Q))1_//Scott russel mechanism consist of ____turning & ______sliding pair 

((A))3&1 ((B))2&2 ((C))1&3 ((D))4&0 

ANSWER A

 ((Q))1_//The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

 ((A))Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels ((B))The Ackerman steering gear consists of turning pairs ((C))The Ackerman steering gear is most economical ((D))A &B 

ANSWER D

 ((Q))1_//Davis steering gear consists of 

((A))Globular pair ((B))Rolling pair ((C))Sliding pair ((D))Screw pair 

ANSWER C

((Q))1_//In a coupling rod of a locomotive, each of the four pairs is a __________ pair. 

((A))Sliding pair ((B))Rolling pair ((C))Screw pair ((D))Turning pair 

ANSWER D

((Q))1_//The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, b= Distance between the pivots of the front axles, and l = Wheel base) 

((A))sin φ + sin α = b/l ((B))cos φ - sin α = b/l ((C))cot φ - cot α = b/l ((D))tan φ + cot α = b/l 

ANSWER C

((Q))1_//A railway bridge is an example of a --------------. 

((A))Structure ((B))Machine ((C))Mechanism ((D))Kinematic chain 

ANSWER A

 ((Q))1_//A type-writer is a_________.

 ((A))Structure((B))Mechanism ((C))Machine ((D))Kinematic chain 

ANSWER B

 ((Q))1_//An unconstrained rigid link in space will have ________ degrees of freedom

 ((A))4 ((B))3 ((C))8 ((D))6 

ANSWER D

((Q))1_//Grubler’s criterion applicable to the mechanisms which has 

((A))1 degrees of freedom ((B))Lower pair ((C))A & B both ((D))Higher pair 

ANSWER C

 ((Q))1_//In IC engine no of degrees of freedom are

 ((A))1 ((B))2 ((C))3 ((D))4 

ANSWER A

((Q))1_//Screw pair has _______ degrees of freedom 

((A))1 ((B))2 ((C))3 ((D))0 

ANSWER B

((Q))1_// Shaft with collars at both ends fitted into a circular hole is the example 

((A))5 ((B))7 ((C))9 ((D))11 

ANSWER C

((Q))2_//Find number of degrees of freedom

 ((A))2 ((B))1 ((C))-1 ((D))0 ((E))A ((F))((Q))2_//Find the number of links ((A))8 ((B))9 ((C))7 ((D))10 ANSWER A

((Q))2_//Slotted disc from double slider crank kinematic chain is a ---- 

((A))Binary ((B))Ternary ((C))Quarternary((D))none 

ANSWER A

((Q))1_//Which of the following disciplines provides study of inertia forces arising from the combined  effect of the mass and the motion of the parts 

((A))Kinetics ((B))Kinematics ((C))Mechanics ((D))Mechanisms 

ANSWER A

((Q))1_//Which of the following disciplines provides a study of relative motion between the parts of a machine 

((A))Kinetics ((B))Kinematics ((C))Mechanics ((D))Mechanism

ANSWER B

 ((Q))1_//Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts

((A))Kinetic ((B))Applied mechanics ((C))Theory of machine ((D))Kinematic

ANSWER C

((Q))1_//An universal joint is an example of 

((A))Higher pair ((B))Sliding pair ((C))Rolling pair ((D))Lower pair ((E))D ((F)) ((Q))_//Cross head and guides form a ((A))Sliding pair ((B))Rolling pair ((C))Screw pair ((D))Spherical pair 

ANSWER A

((Q))1_//Kinematic pairs are those which have two elements that 

((A))Have line contact ((B))Have surface contact ((C))Permit relative motion ((D))Are held together ANSWER C

((Q))1_//All the following statements are correct, except 

((A))For a kinematic chain to be considered as a mechanism, one link should be fixed ((B))The Ackerman steering gear consists of three pairs turning &one pair sliding ((C))Oldham's coupling is used to connect two parallel shafts ((D))A minimum of four kinematic pairs are required in a kinematic chain ANSWER B

((Q))1_// No consideration of force acting on the links is the limitation of__________________.

((A))Ackerman ((B)) Kutzbach criterion ((C))Davis criteria ((D))All of the above

ANSWER B

((Q))1_// Fluid link can transmit only ___________.

((A))Shear force ((B)) Tensile force ((C)) Compressive force ((D))All of the above

ANSWER C

 ((Q))1_//Pantograph is used for ____.

((A))Reproduction of plane areas and geometrical figures ((B))Guiding the cutting tools ((C))Reproduction of the displacement of the cross-head and piston of steam engine ((D))All of the above 

ANSWER D

((Q))1_// By using turning pair mechanism which type of motion can be obtained ____. 

((A)) Oscillatory motion ((B)) Straight line motion ((C)) Parabolic line motion((D))All of above 

ANSWER B

 ((Q))1_// Scott russel mechanism mechanism is rarely used due to friction of___________ 

((A)) Rliding pair ((B)) Turning pair ((C)) Rolling pair ((D)) None of above

ANSWER A

 ((Q))1_// Scott russel mechanism is the basic mechanism of_______________-.

((A)) Grass-Hopper's mechanism ((B))Hart's mechanism ((C))Peaucellier mechanism ((D))Watt's indicator 

ANSWER A

(((Q))1_// Shaft with collars at both ends fitted into a circular hole is the example 

 ((A))Line contact ((B))Surface contact ((C))Point contact ((D))None of above

ANSWER B

((Q))1_// Shaft with collars at both ends fitted into a circular hole is the example 

((A))Rolling pair ((B)) Turning pair ((C))Sliding pair ((D))Rigid link ((E))B ((F)) ((Q))1_// Example of rolling pair is ((A)) Lead screw of a lathe ((B)) Bolt and nut ((C)) Pulley in a belt drive ((D)) Ball and socket joint 

ANSWER C

((Q))1_// Ball and socket joint is one of the example of

((A))Sliding pair ((B))Turning pair ((C)) Globular pair ((D))Rolling pair ((E))C ((F)) ((Q))1_// Globular Pair is also known as ((A))Revolute pair ((B))Helical pair ((C))Rolling pair((D)) Spherical pair 

ANSWER D

((Q))1_//In slotter which type of mechanism is used 

((A)) Quick return mechanism ((B))Scott russel mechanism ((C))Ackerman steering mechanism ((D))Oscillating cylinder mechanism 

ANSWER A 

((Q))1_// Double slider crank chain is the basic mechanism of 

((A)) Oldham's coupling ((B)) Single slider crank chain ((C))Four bar crank chain ((D))All of the above ANSWER A

((Q))1_//In lower pair, the contact is 

((A))Point contact ((B))Line contact ((C))Surface contact ((D))Purely rotary 

ANSWER C

((Q))1_//Circular bar in a circular hole is the following type of pair 

((A))Incompletely constrained motion ((B))Completely constrained motion ((C))Partially constrained motion ((D))Successfully constrained motion 

ANSWER A

 ((Q))1_// A pulley and belt in a belt drive form a

((A)) Cylindrical pair ((B)) turning pair ((C)) rolling pair ((D)) sliding pair 

ANSWER B

((Q))1_// Consider the following mechanisms: 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism Which of the above are inversions of slider crank mechanism? 

((A)) 1, 2 and 4 ((B)) 2, 3 and 4 ((C)) 1, 2 and 3 ((D)) 1, 3 and 4

ANSWER D

((Q))1_// Which one of the following is an exact straight line mechanism using lower pairs? 

((A)) Watt’s mechanism ((B)) Grasshopper mechanism ((C)) Robert’s mechanism ((D)) Paucellier’s mechanism 

ANSWER D

 ((Q))1_// The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of links, j = number of joints and h = number of higher pairs) 

((A)) n = 3(l-1)-2j-h ((B)) n = 2(l-1)-2j-h ((C)) n = 3(l-1)-3j-h ((D)) n = 2(l-1)-3j-h 

ANSWER A

((Q))1_// A ball and a socket forms a (

(A)) Turning pair ((B)) Rolling pair ((C)) Screw pair ((D)) Spherical pair 

ANSWER D

(Q))1_// ________ is an inversion of Double slider crank chain.

((A)) Coupling rod of a locomotive ((B)) Scotch yoke mechanism ((C)) Hand pump ((D)) Reciprocating engine

ANSWER B

 ((Q))1_// Which of the following is an inversion of Single slider crank chain?

((A)) Beam engine ((B)) Rotary engine ((C)) Oldham’s coupling ((D)) Elliptical trammel 

ANSWER B

((Q))1_// In a ball bearing, ball and bearing forms a

((A)) Turning pair ((B)) Rolling pair ((C)) Screw pair ((D)) Spherical pair 

ANSWER B

((Q))1_// Which of the following is a higher pair? 

((A)) Turning pair ((B)) Screw pair ((C)) Belt and pulley ((D)) None of the above 

ANSWER C 

((Q))1_// Which of the following is an open pair? 

((A)) Journal bearing ((B)) Ball and Socket joint ((C)) Leave screw and nut ((D)) None of the above 

ANSWER C