SUMMARY

Question 1

Matter takes up space, has mass, and can be in the form of solid, liquid, or gas

Answer 1

True

Question 2

The weight of a substance at rest on the earth proportional to its mass

Answer 2

True

Question 3

In the British system of units, density is the weight of a substance per cubic foot

Answer 3

True

Question 4

Specific gravity is the property used to compare the density of various substance

Answer 4

True

Question 5

Specific volume is the amount of space a pound of a vapor or a gas will occupy

Answer 5

True

Question 6

Boyles law state that the volume of a gas varies inversely with the absolute pressure, provided the temperature remain constant

Answer 6

True

Question 7

Daltons law states that the total pressure of a confined mixture of gases is the sum of the pressures of each of the gases in the mixture

Answer 7

True

Question 8

Electrical energy and heat energy are two forms of energy used in the HVAC/R industry

Answer 8

True

Question 9

Fossil fuels are purchased by the unit, natural gas is measured by the cubic foot, oil is purchased by the gallon, and coal is purchased by the tom, electricity is purchased by the kilowatts-hour

Answer 9

True

Question 10

Work is the amount of force necessary to move an object

Work = force x distance

Answer 10

True

Question 11

One horse power is equivalent to?

Answer 11

33,000 lb to a height of one feet in one minute

Question 12

Watts are measurement in electrical power

One horse power equals?

Answer 12

746 watts