HART1407 HVAC

A solid material exerts a pressure or force

• in all directions

• downward only

• outward and downward

• outward only

Answer explanation

A liquid material exerts a pressure or force

• in all directions

• downward only

• outward and downward

• outward only

Answer explanation

A vapor material exerts a pressure or force

• in all directions

• downward only

• outward and downward

• outward only

If the temperature remains constant and the volume that a gas occupies increases, the pressure will

• decrease.

• increase.

• remain the same.

• cannot be determined from the information given.

Answer explanation

The volume of gas varies inversely with the absolute pressure, provided the temperature remains constant. This is called

• Charles's Law
• Avogadro's Law
• Boyle's Law
• Dalton's Law

At a constant pressure, the volume of a gas varies as to the absolute temperature, and at a constant volume the pressure of the gas varies directly with the absolute temperature. This is called

• Charles's Law
• Avogadro's Law
• Boyle's Law
• Dalton's Law

Answer explanation

The total pressure of a confined mixture of gases is the sum of the pressures of each gas in the mixture. This is called

• Charles's Law
• Avogadro's Law
• Boyle's Law
• Dalton's Law

Answer explanation

1 horsepower is equal to __ watts of electrical power

• 559

• 1254

• 746
• 467

Answer explanation

Specific volume is the term used to indicate the space a weight of gas will occupy.

• True

• False

Answer explanation

(Check to make sure "true" is the correct answer on this one!)

Which is NOT an example of a fossil fuel

• hydrogen

• oil

• coal
• natural gas

Answer explanation