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FCTC Written Prep Practice Test Exam
Questions And Correct Answers Rated 100%
If the anchor knot is at the load then the mechanical
advantage will be ______
Odd (examples A, D, and E)
If the anchor knot is at the anchor then the mechanical
advantage will be _____
Even (examples B and C)
If using a 3:1 mechanical advantage and we need to move
the load 20 feet, we need to pull _____ feet of rope
through our system:
60ft
What is a lever lever is a machine consisting of a
beam or rigid rod pivoted at a fixed hinge, or
fulcrum
How are classes of levers classified
By their relative positions of the fulcrum and the input
and output forces
What are typical names for the input force and the output
force when using a lever
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Input is effort
Output is load or resistance
Characteristics of a class 1 lever and examples
- Fulcrum in the middle
- Effort applied on one side and resistance on the other -
Ex: Seesaw, pair of scissors, crowbar.
Characteristics of a class 2 lever and examples
- Resistance in the middle
- Effort is applied on one side of the resistance and the
fulcrum is located on the other side
- Ex: Wheelbarrow, nutcracker, bottle opener, brake pedal
of a car
Characteristics of a class 3 lever and examples
- Effort in the middle
- resistance is on one side of the effort and the fulcrum is
located on the other side
- Ex: a pair of tweezers or the human mandible What does
"fre, 123" mean?
- Fulcrum is in the middle for the 1st class lever - The
resistance is in the middle for the 2nd class lever - The
effort is in the middle for the 3rd.
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1 vertical foot = _______ pounds per square inch
0.433 pounds per square inch
1 psi = _______ vertical feet
2.31 Vertical feet
How is head pressure created
By the force of gravity and is a function of the difference
in elevation between intake and the output.
What is a mechanical advantage
How many times a simple machines multiplies the force
applied to it, providing more torque and power
The more pulleys, the ________ it is to pull or lift an
object easier
The more pulleys involved, the __________ distance
you must pull, but it is still easier to lift an object greater
The ___________ a windlass, the __________ it is to
turn. thinner; easier
In two different sets of pulleys, if the wheels are
connected by a shaft, and the two wheels on one pulley
are the same as the other two that they are connected to,
then they both turn at the same or different speed(s)?
FCTC Written Prep Practice Test Exam
Questions And Correct Answers Rated 100%
If the anchor knot is at the load then the mechanical
advantage will be ______
Odd (examples A, D, and E)
If the anchor knot is at the anchor then the mechanical
advantage will be _____
Even (examples B and C)
If using a 3:1 mechanical advantage and we need to move
the load 20 feet, we need to pull _____ feet of rope
through our system:
60ft
What is a lever lever is a machine consisting of a
beam or rigid rod pivoted at a fixed hinge, or
fulcrum
How are classes of levers classified
By their relative positions of the fulcrum and the input
and output forces
What are typical names for the input force and the output
force when using a lever
,2 | Page
Input is effort
Output is load or resistance
Characteristics of a class 1 lever and examples
- Fulcrum in the middle
- Effort applied on one side and resistance on the other -
Ex: Seesaw, pair of scissors, crowbar.
Characteristics of a class 2 lever and examples
- Resistance in the middle
- Effort is applied on one side of the resistance and the
fulcrum is located on the other side
- Ex: Wheelbarrow, nutcracker, bottle opener, brake pedal
of a car
Characteristics of a class 3 lever and examples
- Effort in the middle
- resistance is on one side of the effort and the fulcrum is
located on the other side
- Ex: a pair of tweezers or the human mandible What does
"fre, 123" mean?
- Fulcrum is in the middle for the 1st class lever - The
resistance is in the middle for the 2nd class lever - The
effort is in the middle for the 3rd.
, 3 | Page
1 vertical foot = _______ pounds per square inch
0.433 pounds per square inch
1 psi = _______ vertical feet
2.31 Vertical feet
How is head pressure created
By the force of gravity and is a function of the difference
in elevation between intake and the output.
What is a mechanical advantage
How many times a simple machines multiplies the force
applied to it, providing more torque and power
The more pulleys, the ________ it is to pull or lift an
object easier
The more pulleys involved, the __________ distance
you must pull, but it is still easier to lift an object greater
The ___________ a windlass, the __________ it is to
turn. thinner; easier
In two different sets of pulleys, if the wheels are
connected by a shaft, and the two wheels on one pulley
are the same as the other two that they are connected to,
then they both turn at the same or different speed(s)?
