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CAE Exam 2 Questions with Correct Answers
| Updated (100% Correct Answers)
What is a mechanism? Answer: A mechanism is a group of
connected parts that work together to move in a specific way.
What is a machine? Answer: A machine is a group of parts that
work together to move and use energy in a controlled way.
What are degrees of freedom? Answer: The number of independent
parameters (measurements, coordinates) which are needed to
uniquely define a system's position in space at any point of time.
How many DOF does a rigid body in plane motion have? Answer: 3
How many DOF does a rigid body in 3D space have? Answer: 6
What is a link? Answer: A rigid body which possesses at least two
nodes which are points for attachment to other links
How many nodes does a binary link have? Answer: 2 nodes
How many nodes does a ternary link have? Answer: 3 nodes
How many nodes does a quaternary link have? Answer: 4 nodes
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, 2
What is a joint? Answer: a connection between two or more links
(at their nodes) which allows some motion, or potential motion
between the kinetic links
AKA kinetic pairs
What are two ways of classifying joints/kinematic pairs? Answer:
types of contact and number of DOF
What are the six types of surface contact between the elements?
Answer: revolute (R), prismatic (P), helical (H), cylindric (C), spherical
(S), flat planar (F)
Where can a revolute surface contact be observed? How many
degrees of freedom? Answer: constrained pin, 1 degree of freedom
(delta theta)
Where can a helical surface contact be observed? How many
degrees of freedom? Answer: screw, 1 degree of freedom (delta
theta)
Where can a prismatic surface contact be observed? How many
degrees of freedom? Answer: slider, 1 degree of freedom (delta x)
Where can a cylindric surface contact be observed? How many
degrees of freedom? Answer: sliding pin, 2 DOF (delta x, delta
theta)
© 2025 All rights reserved
CAE Exam 2 Questions with Correct Answers
| Updated (100% Correct Answers)
What is a mechanism? Answer: A mechanism is a group of
connected parts that work together to move in a specific way.
What is a machine? Answer: A machine is a group of parts that
work together to move and use energy in a controlled way.
What are degrees of freedom? Answer: The number of independent
parameters (measurements, coordinates) which are needed to
uniquely define a system's position in space at any point of time.
How many DOF does a rigid body in plane motion have? Answer: 3
How many DOF does a rigid body in 3D space have? Answer: 6
What is a link? Answer: A rigid body which possesses at least two
nodes which are points for attachment to other links
How many nodes does a binary link have? Answer: 2 nodes
How many nodes does a ternary link have? Answer: 3 nodes
How many nodes does a quaternary link have? Answer: 4 nodes
© 2025 All rights reserved
, 2
What is a joint? Answer: a connection between two or more links
(at their nodes) which allows some motion, or potential motion
between the kinetic links
AKA kinetic pairs
What are two ways of classifying joints/kinematic pairs? Answer:
types of contact and number of DOF
What are the six types of surface contact between the elements?
Answer: revolute (R), prismatic (P), helical (H), cylindric (C), spherical
(S), flat planar (F)
Where can a revolute surface contact be observed? How many
degrees of freedom? Answer: constrained pin, 1 degree of freedom
(delta theta)
Where can a helical surface contact be observed? How many
degrees of freedom? Answer: screw, 1 degree of freedom (delta
theta)
Where can a prismatic surface contact be observed? How many
degrees of freedom? Answer: slider, 1 degree of freedom (delta x)
Where can a cylindric surface contact be observed? How many
degrees of freedom? Answer: sliding pin, 2 DOF (delta x, delta
theta)
© 2025 All rights reserved
