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WorksheetsTom -3
Total questions: 20
Worksheet time: 11mins
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)
n = 3(l-1)-2j-h
2(l-1)-2j-h
n = 3(l-1)-3j-h
n = 2(l-1)-3j-h
Which of the following is an inversion of Single slider crank chain?
Beam engine
Rotary engine
Oldham’s coupling
Elliptical trammel
Transmission angle is the angle between
Input link and coupler
Output link and coupler
Input link and fixed link
Output link and fixed link
Whitworth quick return mechanism is obtained by inversion of
slider crank mechanism
kinematic chain
four bar mechanism
roller cam mechanism
In a four bar linkage, s denotes the shortest link length, L is the longest link length, P and Q are the lengths of other two links. At least one of the three moving links will rotate by 360° if
S + L < P + Q
S + L > P + Q
S + P < L + Q
S + P > L + Q
According to Grashof’s law for four bar mechanism, At least one of the three moving links will rotate by 360° if the sum of shortest and longest link lengths should not be greater than the sum of remaining two link length.
TRUE
FALSE
A four-bar chain has
all turning pairs
one turning pair and the others are sliding pairs
one turning pair and the others are sliding pairs
all sliding pairs
The number of inversions of a slider crank chain is
6
5
4
3
Identify the type of link shown
Binary link
Ternary Link
Quaternary link
flexible link
The total degrees of freedom in space for an unconstrained object is
5
4
6
3
Total DoF for an object in 2D space (Planar object) is
1
2
3
6
Identify the Degrees of freedom for the door latch shown in fig.
1
2
3
0
Name the type of joint present in the knee.
revolute pair
spherical pair
sliding pair
cylindrical pair
How many degrees of freedom does our eyeball have?
1
2
3
6
Identify the mechanism shown in fig.
rotary engine - Inversion of four bar chain
rotary IC engine - Inversion of slider crank mechanism
IC Engine - Inversion of slider crank mechanism
All of the mentioned
The mechanism shown in the fig is an
inversion of slider crank mechanism - Oscillating cylinder engine
inversion of four bar mechanism - Oscillating cylinder engine
inversion of slider crank mechanism - beam engine
inversion of slider crank mechanism - Pendulum pump engine
Identify the object shown in the fig.
Pendulum pump - Fourth Inversion of four bar mechanism
Pendulum pump - Fourth Inversion of slider crank mechanism
Beam engine - Fourth Inversion of slider crank mechanism
None of the mentioned
Identify the mechanism shown in fig.
Whitworth quick return mechanism - Inversion of four bar mechanism
Crank and slotted lever quick return mechanism - Inversion of four bar mechanism
Crank and slotted lever quick return mechanism - Inversion of slider crank mechanism
Whitworth quick return mechanism - Inversion of slider crank mechanism
for the mechanism shown count the number of links "l" (consider the slider as a link), and count the number of joints (lower pairs) "j".
Links = 6, Joints = 7
Links = 7, Joints = 7
Links = 7, Joints = 6
Links = 6, Joints = 6
count the no of links and no of joints for the mechanism shown
Links = 7 Joints = 8
Links = 8 Joints = 8
Links = 8 Joints = 7
Links = 7 Joints = 7
