PICAT 119 Exam Test Quiz Questions
The mechanical advantage of the wheel-and-belt assembly shown in
the illustration is 1/3 .What is the diameter
of the driver wheel? -Correct Answer ✔ ✔ 3 inches
A 12-pound weight attached to a spring stretches the spring by 2
inches.
How many inches will the spring stretch if the 12-pound weight is
replaced with an 18-pound weight? -Correct Answer ✔ ✔ 6
What makes it more difficult to push a block of wood on a sandpaper
surface than on a glass surface? -Correct Answer ✔ ✔ frictional
force
When the gear train shown is operating, which set of gears turn in the
same direction? -Correct Answer ✔ ✔ F,H and J
,What is the force acting on the log to keep it afloat? -Correct Answer
✔ ✔ buoyancy
Which of the following is the main force that acts on a box sitting on a
shelf? -Correct Answer ✔ ✔ Gravity
A steel wedge is placed next to a heavy stone as shown. When the
worker strikes the steel wedge, what will most likely happen to the
heavy stone? -Correct Answer ✔ ✔ Only the left side of the stone
will rise.
What is the mechanical advantage of the gear train shown in the
illustration? -Correct Answer ✔ ✔ 8
Two wheels are connected by a crossed belt, as shown in the
illustration. Wheel B is half the diameter of wheel A. If wheel A is
rotated in a clockwise direction, wheel B will rotate -Correct Answer
✔ ✔ counterclockwise at twice the speed of wheel A.
, Wheel A has a diameter of 6 inches, while wheel B has a diameter of
12 inches. If wheel A turns at a rate of 8 rpm, what will be the speed
of wheel B? -Correct Answer ✔ ✔ 96 rpm
A water pipe bursting when it freezes is an example of water's ability
to -Correct Answer ✔ ✔ to expand
As gear B rotates clockwise, gear A will turn -Correct Answer ✔ ✔
In direction 1
The pressure exerted by the water on the surface of the sand is -
Correct Answer ✔ ✔ Greatest at A
If the beam has a heavy load placed upon it at the point shown, about
how much downward force is exerted on support A? -Correct Answer
✔ ✔ 75lb
Which characteristic is present in most crustaceans. -Correct Answer
✔ ✔ exoskeleton
The mechanical advantage of the wheel-and-belt assembly shown in
the illustration is 1/3 .What is the diameter
of the driver wheel? -Correct Answer ✔ ✔ 3 inches
A 12-pound weight attached to a spring stretches the spring by 2
inches.
How many inches will the spring stretch if the 12-pound weight is
replaced with an 18-pound weight? -Correct Answer ✔ ✔ 6
What makes it more difficult to push a block of wood on a sandpaper
surface than on a glass surface? -Correct Answer ✔ ✔ frictional
force
When the gear train shown is operating, which set of gears turn in the
same direction? -Correct Answer ✔ ✔ F,H and J
,What is the force acting on the log to keep it afloat? -Correct Answer
✔ ✔ buoyancy
Which of the following is the main force that acts on a box sitting on a
shelf? -Correct Answer ✔ ✔ Gravity
A steel wedge is placed next to a heavy stone as shown. When the
worker strikes the steel wedge, what will most likely happen to the
heavy stone? -Correct Answer ✔ ✔ Only the left side of the stone
will rise.
What is the mechanical advantage of the gear train shown in the
illustration? -Correct Answer ✔ ✔ 8
Two wheels are connected by a crossed belt, as shown in the
illustration. Wheel B is half the diameter of wheel A. If wheel A is
rotated in a clockwise direction, wheel B will rotate -Correct Answer
✔ ✔ counterclockwise at twice the speed of wheel A.
, Wheel A has a diameter of 6 inches, while wheel B has a diameter of
12 inches. If wheel A turns at a rate of 8 rpm, what will be the speed
of wheel B? -Correct Answer ✔ ✔ 96 rpm
A water pipe bursting when it freezes is an example of water's ability
to -Correct Answer ✔ ✔ to expand
As gear B rotates clockwise, gear A will turn -Correct Answer ✔ ✔
In direction 1
The pressure exerted by the water on the surface of the sand is -
Correct Answer ✔ ✔ Greatest at A
If the beam has a heavy load placed upon it at the point shown, about
how much downward force is exerted on support A? -Correct Answer
✔ ✔ 75lb
Which characteristic is present in most crustaceans. -Correct Answer
✔ ✔ exoskeleton
