Six Type of Cams correct answers Plate/Disk
Translating/Wedge
Cylindrical
Conical
Face
Globonical
Def. of Kinetics correct answers Study of forces that cause motion (torque, gravity, friction)
Def. of Kinematics correct answers Study of describing motion (distance, time, velocity, accele...
IET 450 Midterm || with 100% Errorless Solutions.
Six Type of Cams correct answers Plate/Disk
Translating/Wedge
Cylindrical
Conical
Face
Globonical
Def. of Kinetics correct answers Study of forces that cause motion (torque, gravity, friction)
Def. of Kinematics correct answers Study of describing motion (distance, time, velocity,
acceleration)
Def. of Dynamics correct answers Branch of mechanics concerned with the motion of bodies
under the action of forces
Two types of Motion correct answers Linear Motion
Angular Motion
What is Linear Motion? correct answers "Translation"- All points on a body/object move the
same distance, in the same direction, and at the same time
What is Angular Motion correct answers "Rotary"- All points on a body/object move in circles
about the same central line or axis
What is Rectilinear Motion ? correct answers Motion along a straight line
What is Curvilinear Motion? correct answers Motion along a curved path
Three types of Coordinate Systems correct answers Cartesian
Cylindrical
Spherical
Elements of a Cartesian Coordinate System correct answers three perpendicular planes XY, XZ,
YZ
Elements of a Cylindrical Coordinate System correct answers polar axis (A)
longitudinal axis (L)
radial distance (Rho)
height (z)
angular coordinate (phi)
Elements of a Spherical Coordinate System correct answers radial distance (r)
polar angle: ZY-Axis (theta)
azimuthal angle XY-Axis (phi)
, Distance correct answers Measure of the length of the path followed (Scalar) regardless of
direction
Displacement correct answers Change in position (Vector)
Speed correct answers Rate of change of distance traveled with respect to time (Scalar)
Velocity correct answers Rate of change of displacement with respect to time (Vector)
Acceleration correct answers Rate of change of velocity with respect to time (Vector)
Jerk/Jolt correct answers Rate of change of acceleration of time
Degree of Freedom of a Solid Object correct answers 6
D.O.F Types and Elements correct answers Orthogonal (X, Y, Z direction)
Rotational (Roll:X, Pitch:Y, Yaw:Z)
Two Types of Cam-Follower Motions correct answers Translation
Oscillation
Three types of Contacts of Translating Follower correct answers Radial
Positive-Return
Double-Roller
Three Types of Contacts of Oscillating Follower correct answers Flat-face
Roller
Spherical
Constant Velocity Characteristics correct answers Uniform-Velocity Profile
Straight-line Profile
Straight line from zero to end of rise
Constant Velocity Disadvantages correct answers -Infinity acceleration at the beginning and end
-Consequent large inertia forces at these points
-Inadequate in application of moderate to high velocity
-Result in vibration, noise, high stress level, and wear
Modified Constant Velocity Characteristics correct answers -Avoid acceleration beginning and
end of rise
-Smaller R derives undesirable velocity changes
-Bigger R derives gradual acceleration but higher velocity during midsections
Modified Constant Velocity Disadvantages correct answers -Not constant velocity anymore
-Derivative of acceleration (=jerk or pulse) is infinite
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