Fctc Test Prep Questions And Answers
With Verified Solutions 100% Correct
A belt and pulley system is characterized by - ANSWER two or more pulleys in
common to a belt.
What does a belt and pulley system allow for? - ANSWER mechanical power,
torque, and speed to be transmitted across axles
How is mechanical advantage realized? - ANSWER if the pulleys are different
diameters
what is a pulley? - ANSWER a wheel on an axle or shaft that is designed to
support movement and change of direction of a cable or belt along its
circumference
Why are pulleys used? - ANSWER lift loads
apply forces
trasmit power
What is usually the drive element of a pulley? - ANSWER rope, cable, belt or
chain that runs over the pulley inside the groove
Pulleys are assembled to form what - ANSWER a block and tackle in order to
provide mechanical advantage to apply large forces
, rope and pulley systems (block and tackle) are characterized by what? - ANSWER
the use of a single continuous rope to transmit a tension force around one or
more pulleys to lift or move a load
the rope may be a light line or a strong cable
What is the mechanical advantage of a rope and pulley system if it does not
dissipate or store energy? - ANSWER the number of parts of the rope that act on
the load
What is a lever? - ANSWER a machine consisting of a beam or rigid rod pivoted
at a fixed hinge or fulcrum
How do levers work? - ANSWER amplifies an input force to provide a greater
output force, which is said to provide leverage
what is the mechanical advantage of a lever? - ANSWER the ratio or the output
force to the input force
How are levers classified? - ANSWER by relative positions of the fulcrum and the
input and output forces.
allows identification by the relative locations of the fulcrum, the resistance, and
the effort.
Class 1 Lever - ANSWER Fulcrum in the middle
With Verified Solutions 100% Correct
A belt and pulley system is characterized by - ANSWER two or more pulleys in
common to a belt.
What does a belt and pulley system allow for? - ANSWER mechanical power,
torque, and speed to be transmitted across axles
How is mechanical advantage realized? - ANSWER if the pulleys are different
diameters
what is a pulley? - ANSWER a wheel on an axle or shaft that is designed to
support movement and change of direction of a cable or belt along its
circumference
Why are pulleys used? - ANSWER lift loads
apply forces
trasmit power
What is usually the drive element of a pulley? - ANSWER rope, cable, belt or
chain that runs over the pulley inside the groove
Pulleys are assembled to form what - ANSWER a block and tackle in order to
provide mechanical advantage to apply large forces
, rope and pulley systems (block and tackle) are characterized by what? - ANSWER
the use of a single continuous rope to transmit a tension force around one or
more pulleys to lift or move a load
the rope may be a light line or a strong cable
What is the mechanical advantage of a rope and pulley system if it does not
dissipate or store energy? - ANSWER the number of parts of the rope that act on
the load
What is a lever? - ANSWER a machine consisting of a beam or rigid rod pivoted
at a fixed hinge or fulcrum
How do levers work? - ANSWER amplifies an input force to provide a greater
output force, which is said to provide leverage
what is the mechanical advantage of a lever? - ANSWER the ratio or the output
force to the input force
How are levers classified? - ANSWER by relative positions of the fulcrum and the
input and output forces.
allows identification by the relative locations of the fulcrum, the resistance, and
the effort.
Class 1 Lever - ANSWER Fulcrum in the middle
