WorksheetsCourse Outcomes and Module 1 Syllabus
Total questions: 13
Worksheet time: 7mins
Which statement best distinguishes kinematics from dynamics in mechanical analysis?
Kinematics applies Newton’s laws for explanations
Kinematics considers mass, force, and acceleration
Kinematics studies force and power relationships
Kinematics studies motion without forces considered
A system of rigid bodies connected by joints will have mobility only if it includes which minimum configuration?
Five links with all links movable
Two links with both links free
Four links with one link fixed
Three links with no link fixed
Which statement best defines a link in mechanisms?
Any component that stores energy and heat
A body that connects parts and transmits motion
A fastener that prevents relative sliding between parts
A device that only supports loads without motion
Which example correctly matches the link type with its characteristic?
Fluid link—uses cables to transmit tensile forces
Flexible link—prevents motion transmission during deformation
Flexible link—uses hydraulic pressure for torque transfer
Rigid link—does not deform while transmitting motion
Which statement best distinguishes a lower pair joint from a higher pair joint?
Higher pair always has zero wear during operation
Higher pair permits only sliding motion between links
Lower pair has only point contact between links
Lower pair has surface contact between links
Which application is most appropriately modeled as a turning (revolute) lower pair?
Cam and follower in valves
Belt and pulley in drives
Crank and connecting rod in engines
Ball and roller bearings in hubs
A design requires line contact with complex relative motion but tolerates higher wear. Which joint classification is most suitable?
Higher pair with line contact surfaces
Spherical lower pair with all-direction rotation
Screw lower pair with helical motion
Lower pair with full surface contact
In the diagram, which rotation corresponds to yaw in a rigid-body’s six degrees of freedom?
Rotation about the X axis, left–right
Rotation about the Y axis, forward–back
Rotation about the Z axis, up–down
Rotation about an axis through the wrist
Which scenario best represents a completely constrained mechanism?
Piston moving in a close-fit cylinder
Vertical shaft floating without axial load
Circular shaft free in a round hole
Cam follower without any spring force
A circular shaft passing through a circular hole can both rotate and translate along its axis. How is the mechanism classified without additional forces or elements?
Over-constrained redundant mechanism
Completely constrained mechanism
Successfully constrained mechanism
Incompletely constrained mechanism
In which case does an external agency make the motion definite, turning the arrangement into a successfully constrained mechanism?
Pin in a prismatic slot without load
Square bar in a square hole fit
Slider in a rectangular guide alone
Cam and follower pressed by a spring
Which mechanism category transmits motion between links without changing the type of motion?
Transmission of motion mechanisms
Transformation of motion mechanisms
Path generation mechanisms
Energy conversion mechanisms
A designer needs to convert rotary input into linear output while also being able to generate a specific path if needed. Which mechanism pair best meets these two separate requirements?
Slider–crank and straight-line linkage
Gear train and chain drive
Cam–follower and belt drive
Rack–pinion and worm gear
