1-9.
Pascal’s law pertains to the
1.
construction of aqueducts
2.
use of water wheels for doing
work
3.
differences of floating and
submerged bodies
4.
transmission of force in
confined fluids
IN QUESTIONS 1-10 THROUGH 1-12, SELECT
FROM COLUMN B THE TYPE OF POWER USED IN
EACH ITEM OF EQUIPMENT OR SYSTEM LISTED
IN COLUMN A.
_ EQUIPMENT
A
B. POWER TYPES
1-10.
Dental Chair
1.
Hydraulic
1-11.
Anchor Windlass 2.
Hydro-
pneumatic
1-12.
Service station
lift
3.
Pneumatic
1-13.
1-14.
1-15.
Learning Objective:
Identify the
states of matter and the factors
affecting them.
All matter is classified
according to its state as a
solid, a liquid, or a gas.
1. True
2. False
The critical factors affecting
the state of matter are
1.
2.
3.
4.
temperature and weight
pressure and density
density and specific gravity
pressure and temperature
Learning Objective:
Recognize
the pressure characteristics of
liquids, including how pressure
is caused by the weight of the
atmosphere, and identify how
pressures are measured.
Pressure can be measured in terms
of force per unit area.
1. True
2. False
1-16.
Mark each of the following
statements, concerning the atmosphere
and atmospheric pressure, true or false;
then select the alternative below that
lists
1-17.
1-18.
1-19.
the statements that are true.
A. The troposphere is that
part of the atmosphere
touching the earth’s surface
B. The atmosphere has weight.
c. Atmospheric pressure
decreases as altitude
decreases.
D. Atmospheric pressure at
points below sea level is
less than at sea level.
1.
A and B
2.
B and C
3.
C and D
4.
A, B, C, and D
The reference standard used as an
indicator of atmospheric pressure
is a column of mercury that at
sea level is
1.
76 inches high at 0°C
2.
76 centimeters high at 4°C
3.
76 centimeters high at 0°C
4.
29.92 inches high at 4°C
The side of a thin-walled chamber
partially evacuated of air is the
source of movement for the
1.
hydrometer
2.
aneroid barometer
3.
mercury thermometer
4.
Fahrenheit thermometer
Learning Objective:
Identify
terms and facts applicable to the
physics of fluids and use these
facts with related formulas to
solve problems pertaining to
density and specific gravity.
In the metric system the density
of a substance is its weight in
1.
grams per cubic foot
2.
pounds per cubic foot
3.
grams per cubic centimeter
4.
pounds per cubic centimeter
2
