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MILLWRIGHT LEVEL 3 PNEUMATICS
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MILLWRIGHT LEVEL 3 PNEUMATICS
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MILLWRIGHT LEVEL 3 PNEUMATICS FINAL EXAMNEWEST ACTUAL EXAM COMPLETE 100 QUESTIONS
AND CORRECT DETAILED ANSWERS
An object's inertia determines how much force is needed to lift or move the object
or to change its speed or direction of movement. - ANSWER: True
Most pressure gauges in a pneumatic system measure only pressure that is higher
than the atmospheric pressure surrounding them. - ANSWER: True
In a pneumatic system, mechanical energy is produced by the motor. - ANSWER:
False
Pascal's Law states that when a gas is confined under pressure in a closed container,
the pressure is equally transmitted in all directions by the gas - ANSWER: True
If the volume of a confined quantity of gas remains the same, the change in the
pressure of the gas varies directly with a change in the absolute temperature(T) of
the gas. If the temperature increases, then the pressure of the confined gas
increases. - ANSWER: True
In a pneumatic system, the force that permits a small amount of pressure to move a
larger object is called pneumatic leverage or force multiplication. - ANSWER: True
Bernoulli's Law states that, in an ideal system, if air velocity increases, the kinetic
energy of the air also increases, while the total energy of air does not remain
constant. - ANSWER: False
A pneumatic system is quite different from a hydraulic system. It differs not only in
the components it contains, but also in the flow paths through the system. -
ANSWER: True
The three types of symbols used in drawing pneumatic circuit diagrams are pictorial,
cutaway, and schematic. - ANSWER: True
In a pneumatic timing circuit, the timing is a function of the size of the restriction and
the volume of the reservoir, however, the magnitude(pressureO of the air signal also
affetcs timing. - ANSWER: True
Industrial technicians usually designs symbols for special pneumatic devices. -
ANSWER: False
To understand the operation of many special pneumatic devices, obtain the
manufacturer's service bulletins, which describe their operation. - ANSWER: True
, A system that uses a gas for transmitting force is called - ANSWER: pneumatic system
A force is a push or a pull exerted on an object to change its position or movement
and in a pneumatic system this force is exerted by - ANSWER: compressed air
In a pneumatic system, the force in pounds is exerted by air pressure acting on the
area of a moving piston in a cylinder.
What equation is used to determine the amount of work done by a cylinder? -
ANSWER: force x piston travel
The amount of work done by a cylinder that exerts a force of 120 in-lb and a 10-in.
stroke is - ANSWER: 100 ft-lbs
In a pneumatic system, Power is defined as the amount of work(foot-pounds) done
in a given length of time(seconds or minutes), or foot-pounds per minute.
What equation is used to determine the amount of power? - ANSWER: work/time
can be described as the rapid intermingling of the molecules of one gas with
another. - ANSWER: diffusion
is the ideal type of airflow in a pneumatic system because the air layers move in
nearly parallel lines. - ANSWER: streamline
The _________ of air is its resistance to flow, because it is a measure of the air's
internal friction. - ANSWER: viscosity
_______ symbols or views are useful for showing the physical relationship and
internconnections between pneumatic components and benefit the installer by
clearly showing the connections between pneumatic components. - ANSWER:
pictorial
_______ symbols emphasize the construction of pneumatic components and are of
more benefit in troubleshooting pneumatic components because they show the
internal arrangement of the parts. - ANSWER: cutaway
_______ symbols more clearly emphasize the function and method of operation of
pneumatic components and are the most widely used kind of symbol - ANSWER:
schematic
_______ are used to represent pneumatic rotary motion or devices such as
compressors and motors. - ANSWER: circles
_________ symbols are an organized combination of complete and simplified
symbols. - ANSWER: composite
Pneumatic main line conductors are called working lines and are drawn as a
__________. - ANSWER: single unbroken line
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