3–17.
A manometer is an example of forces
in equilibrium.
The forces that
balance each other are the
1.
2.
3.
4.
force exerted by the atmosphere
and the force exerted by the
liquid inside the closed
container
force exerted by the gas inside
the closed container plus the
weight of the liquid on one
side of the tube, and the force
exerted by the atmosphere plus
the weight of the liquid in the
other side of the tube
force exerted by the steam in
the steam line and the weight
of a column of liquid
force exerted by the gas inside
the closed container and the
weight of part of the liquid in
the tube
3–18.
What instruments are
interchangeable as pressure–
measuring devices?
1.
Aneroid barometer and mercurial
barometer
2.
Schrader gauge and manometer
3.
Spring scale and steel yard
4.
Bourdon gauge and diaphragm–
type pressure gauge
3–19.
Hydrostatic pressure is the
pressure exerted by
1.
gas in motion
2.
gas at rest
3.
liquid at rest
4.
liquid in motion
3–20.
Density is defined in terms of
1.
pressure and volume
2.
weight and distance
3.
pressure and area
4.
weight and volume
3–21.
The pipes in figure 3A are filled
with water.
Pipe AB is vertical;
pipe CB is horizontal; pipe ED
points downward at an angle.
The
point of greatest pressure is at
point
1. A
2. B
3. C
4. D
3–22.
The density of lead is
approximately how many times
greater than the density of water?
1.
5
2.
7
3.
9
4.
11
3–23.
Which of the following is a true
statement concerning the pressure
of water on a submerged submarine?
1.
2.
3.
4.
The pressure is equal on the
top and on the bottom
The pressure is greater on the
top than on the bottom
The pressure is greater on the
bottom than on the top
There is pressure only on the
top
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