Name: Score:
19 Multiple choice questions
Term 1 of 19
The heat transfer between two objects that are in direct physical contact with one another is
called _______.
Conduction
Radiation
Convection
Insulation
Term 2 of 19
Two HVAC/R technicians are discussing the properties of water. Technician A says that if the
pressure of water is raised, the boiling point will decrease. Technician B says that placing water in
a vacuum will cause its boiling point to increase. Which one of the following statements is
correct?
Both A And B
Neither A Nor B
Only B Is Correct
Technician B
Term 3 of 19
Calculate the amount of heat required to change 10 pounds of ice (at 20°F) to steam (at 220°F).
44.7
1404
20
3730
, Definition 4 of 19
volume would increase
The density of a solid or liquid material divided by the density of water is called the _______
of the material.
Which one of the following is an example of kinetic energy?
According to Charles's law, if the temperature of a gas is increased, then the
Two HVAC/R technicians are discussing units of energy. Technician A says that a BTU is
defined as the work performed by a force of 1 Newton (N) moving an object over a distance
of 1 meter (m). Technician B says that if you have a 60 watt light bulb that has been on for 6
hours, that light has consumed 360 watt-hours of energy. Which one of the following
statements is correct?
Definition 5 of 19
5 Feet (1/4 of the height)
Two HVAC/R technicians are discussing the properties of water. Technician A says that if the
pressure of water is raised, the boiling point will decrease. Technician B says that placing
water in a vacuum will cause its boiling point to increase. Which one of the following
statements is correct?
Two technicians are discussing the HVAC/R field. Technician A says that industry codes that
require certain types of installation practices carry the force of law with them. Technician B
says that ANSI is an organization that establishes codes for the HVAC/R field. Which one of
the following statements is correct?
Two HVAC/R technicians are discussing welding equipment. Technician A says that it's not
necessary to remove the regulators from oxygen and acetylene cylinders when you're
transporting them in a vehicle. Technician B says that cylinders should be chained to carts
or structures any time their caps are removed. Which one of the following statements is
correct?
Two HVAC/R technicians are discussing the change of states in matter. Technician A says
that the latent heat of fusion is the amount of heat that must be added to matter to convert
it from a liquid to a gas. Technician B says that the amount of latent heat required to change
the state of matter will vary depending on the type of matter. Which one of the following
statements is correct?
19 Multiple choice questions
Term 1 of 19
The heat transfer between two objects that are in direct physical contact with one another is
called _______.
Conduction
Radiation
Convection
Insulation
Term 2 of 19
Two HVAC/R technicians are discussing the properties of water. Technician A says that if the
pressure of water is raised, the boiling point will decrease. Technician B says that placing water in
a vacuum will cause its boiling point to increase. Which one of the following statements is
correct?
Both A And B
Neither A Nor B
Only B Is Correct
Technician B
Term 3 of 19
Calculate the amount of heat required to change 10 pounds of ice (at 20°F) to steam (at 220°F).
44.7
1404
20
3730
, Definition 4 of 19
volume would increase
The density of a solid or liquid material divided by the density of water is called the _______
of the material.
Which one of the following is an example of kinetic energy?
According to Charles's law, if the temperature of a gas is increased, then the
Two HVAC/R technicians are discussing units of energy. Technician A says that a BTU is
defined as the work performed by a force of 1 Newton (N) moving an object over a distance
of 1 meter (m). Technician B says that if you have a 60 watt light bulb that has been on for 6
hours, that light has consumed 360 watt-hours of energy. Which one of the following
statements is correct?
Definition 5 of 19
5 Feet (1/4 of the height)
Two HVAC/R technicians are discussing the properties of water. Technician A says that if the
pressure of water is raised, the boiling point will decrease. Technician B says that placing
water in a vacuum will cause its boiling point to increase. Which one of the following
statements is correct?
Two technicians are discussing the HVAC/R field. Technician A says that industry codes that
require certain types of installation practices carry the force of law with them. Technician B
says that ANSI is an organization that establishes codes for the HVAC/R field. Which one of
the following statements is correct?
Two HVAC/R technicians are discussing welding equipment. Technician A says that it's not
necessary to remove the regulators from oxygen and acetylene cylinders when you're
transporting them in a vehicle. Technician B says that cylinders should be chained to carts
or structures any time their caps are removed. Which one of the following statements is
correct?
Two HVAC/R technicians are discussing the change of states in matter. Technician A says
that the latent heat of fusion is the amount of heat that must be added to matter to convert
it from a liquid to a gas. Technician B says that the amount of latent heat required to change
the state of matter will vary depending on the type of matter. Which one of the following
statements is correct?
