Technology Interactions © 2007

Chapter 16: Hydraulics & Pneumatics

Self-Check Quiz

1.
The use of liquids or gases to do work is referred to as
A)pneumatic power.
B)hydraulic power.
C)fluid power.
D)electrical power.
2.
Heavy lifting work is often accomplished by shifting fluids in big machines. The power system of such machines can be described as
A)reciprocating.
B)pneumatic.
C)hydraulic.
D)hybrid.
3.
A compressor, which squeezes air more and more tightly, is a vital component in a(n)
A)hydraulic system.
B)pneumatic system.
C)mechanical system.
D)electrical system.
4.
Both pneumatic and hydraulic systems function by exerting pressure, which can be defined as
A)gas compressed into a small volume.
B)power.
C)work.
D)force on a unit surface area.
5.
Boyle's law states that
A)fluids and gases behave in exactly the same ways.
B)as the volume of gas decreases, its pressure increases.
C)all liquids and gases flow.
D)force applied to a liquid is transmitted unchanged to all parts of the liquid.
6.
The scientific principle that makes hydraulic systems possible is
A)Pascal's principle.
B)Boyle's law.
C)Bernoulli's principle.
D)the fluid flow principle.
7.
Pneumatic and other power systems can support three kinds of motion; they are
A)linear, reciprocating, and random motion.
B)linear, flowing, and rotary motion.
C)linear, zigzag, and spiral motion.
D)linear, reciprocating, and rotary motion.
8.
A one-way valve that lets air into the reservoir of a compressor, but doesn't let it out, is a
A)check valve.
B)receiver valve.
C)control valve.
D)three-way valve.
9.
In an old car without power steering, the driver steers heavily to turn wheels and axles, but in a modern car, steering fluid does most of the work. Power steering is an example of
A)pneumatic power at work.
B)hydraulic power at work.
C)mechanical power at work.
D)magnetic power at work.
10.
Some native hunters of South America's Amazon basin use hollow tubes to blow poisoned darts at their prey. This technology is an example of a
A)reciprocating system.
B)mechanical system.
C)hydraulic system.
D)pneumatic system.
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