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ME-3610-001 - Dynamics of Machinery

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Attempt: Attempt 1

Fake Instructor

Available: Sep 2, 2011 8:00 AM - Sep 23, 2011 12:34 PM

Written: Sep 23, 2011 12:15 PM - Sep 23, 2011 12:31 PM

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Time Limit: 2:00:00 (not enforced)

Time Spent: 0:16:00

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Question 1

Motion in a straight line is known as ___________

Rolling

Translation

Rotation

Zooming

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Question 2

Complex motion is a combination of ____________________

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Rolling & Slipping

Translation & Rotation

Sliding & Rolling

Sliding & Slipping

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Question 3

Pure rotation is when a body possesses one point (center of rotation) that has no motion with respect to the stationary frame of

reference

True

False

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Question 4

When a body is in pure rotation, all points on the body (except for the center of rotation) describe arcs about the center of rotations

True

False

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Question 5

A binary link has __________ number of nodes

___2___

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Question 6

A ternary link has 4 nodes

True

False

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Question 7

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Identify the link type shown in red..

Prismatic Link

Quartenary Link

Binary Link

Ternary Link

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Question 8

Joints with surface contacts are termed as ____________ pair

Higher Pair

Lower Pairs

Middle Pair

Surface Pairs

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Question 9

A revolute joint is a higher pair

True

False

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Question 10

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How many degrees of freedom does a spherical joint have?

___3___

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Question 11

A Kinematic Chain in which at least one link has been _________ or attached to the frame of reference (which itself may be in

motion)

Slipped

Grounded

Rotated

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Question 12

______________ is a link that makes a complete revolution and is pivoted to the ground in a mechanism.

___crank___

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Question 13

Rocker is a link that is fixed (non-moving) with respect to the frame

True

False

Save Time: 12:22 PM

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Question 14

Which among the choices given is the mobility equation?

M = 3(n-1)- 2 f1- f2

M = 3n - 2 f1- f2

None of the above

M = 3(n-2) - 2 f1 - f2

Save Time: 12:22 PM

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Question 15

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1. The number of links in the figure shown is

___6___

2. The number of f1 joints in the mechanism shown is

___7___

3. The number of f2 joints for the mechanism shown is

___1___

4. The mobility of the mechanism shown in the figure is

___0___

Save Time: 12:22 PM

Score: / 5 (autograded)20

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Question 16

1. The number of links in the figure shown is

___7___

2. The number of f1 joints in the mechanism shown is

___7___

3. The number of f2 joints for the mechanism shown is

___1___

4. The mobility of the mechanism shown in the figure is

___3___

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Save Time: 12:22 PM

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Question 17

1. The number of links in the figure shown is

___4___

2. The number of f1 joints in the mechanism shown is

___4___

3. The number of f2 joints for the mechanism shown is

___0___

4. The mobility of the mechanism shown in the figure is

___1___

Save Time: 12:24 PM

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Question 18

1. The number of links in the figure shown is

___6___

2. The number of f1 joints in the mechanism shown is

___7___

3. The number of f2 joints for the mechanism shown is

___0___

4. The mobility of the mechanism shown in the figure is

___1___

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Question 19

1. The number of links in the figure shown is

___9___

2. The number of f1 joints in the mechanism shown is

___9___

3. The number of f2 joints for the mechanism shown is

___1___

4. The mobility of the mechanism shown in the figure is

___5___

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Question 20

1. The number of links in the figure shown is

___7___

2. The number of f1 joints in the mechanism shown is

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___7___

3. The number of f2 joints for the mechanism shown is

___1___

4. The mobility of the mechanism shown in the figure is

___3___

Save Time: 12:24 PM

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Question 21

1. The number of links in the figure shown is

___8___

2. The number of f1 joints in the mechanism shown is

___10___

3. The number of f2 joints for the mechanism shown is

___0___

4. The mobility of the mechanism shown in the figure is

___1___

Save Time: 12:25 PM

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Question 22

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1. The number of links in the mechanism shown is

___4___

2. The number of f1 joints in the mechanism shown is

___4___

3. The number of f2 joints in the mechanism shown is

___0___

4. The mobility of the mechanism shown is

___1___

Save Time: 12:25 PM

Score: / 5 (autograded)20

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Question 23

1. The number of links in the mechanism shown is

___5___

2. The number of f1 joints in the mechanism shown is

___6___

3. The number of f2 joints in the mechanism shown is

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___0___

4. The mobility of the mechanism shown is

___0___

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Question 24

1. The number of links in the mechanism shown is

___8___

2. The number of f1 joints in the mechanism shown is

___10___

3. The number of f2 joints in the mechanism shown is

___0___

4. The mobility of the mechanism shown is

___1___

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Question 25

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Identify the correct schematic for the mechanism shown.

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Save Time: 12:27 PM

Score: / 5 (autograded)5

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Question 26

1. The number of links in the backhoe loader shown is

___12___

2. The number of f1 joints in the backhoe loader shown is

___15___

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3. The number of f2 in the backhoe loader shown is

___0___

4. The mobility of the backhoe loader mechanism shown is

___3___

Save Time: 12:27 PM

Score: / 5 (autograded)20

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Question 27

Identify the correct schematic for the mechanism shown.

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Question 28

1. The number of links in the footpump shown is

___4___

2. The number of f1 joints in the footpump shown is

___4___

3. The number of f2 in the footpump shown is

___0___

4. The mobility of the backhoe footpump shown is

___1___

Save Time: 12:27 PM

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Question 29

Identify the correct schematic for the mechanism shown

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Save Time: 12:29 PM

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Question 30

1. The number of links in the Hydraulic Excavator shown (considering planar configuration) is

___12___

2. The number of f1 joints in the Hydraulic Excavator shown (considering planar configuration is

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___15___

3. The number of f2 in the Hydraulic Excavator shown (considering planar configuration is

___0___

4. The mobility of the Hydraulic Excavator shown (considering planar configurationis

___1___ (3)

Save Time: 12:29 PM

Score: / 5 (autograded)15

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Question 31

Identify the correct schematic for the mechanism shown

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Question 32

1. The number of links(consider planar linkages) in the Scissorlift shown is

___8___

2. The number of f1 joints (consider planar linkages) in the Scissorlift shown is

___10___

3. The number of f2 joints (consider planar linkages) in the Scissorlift shown is

___0___

4. The mobility of the (consider planar linkages) in the Scisorlift shown is

___1___

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Question 33

Identify the correct schematic for the mechanism shown

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Save Time: 12:31 PM

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Question 34

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1. The number of links(consider planar linkages) in the Skidsteer shown is

___9___

2. The number of f1 joints (consider planar linkages) in the Skidsteer shown is

___11___

3. The number of f2 joints (consider planar linkages) in the Skidsteer shown is

___0___

4. The mobility of the (consider planar linkages) in the Skidsteer shown is

___2___

Save Time: 12:31 PM

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