Pure water ahs a very uncomplicated atomic structure. Which of the answers below best represents this structure?
Heat losses from a building come from many sources. Which of the answers below correctly identifies the principal reason for heat loss from a building?
Water does not expand and contract as other liquids do. Which of the answers below correctly identifies waters reaction to being warmed to 100°C?
Equipment and piping are effected by the waters pH that it is moving. Which of the pH ranges below is the most acidic?
There are several terms that are closely related to water. Which of the answers below can best be described as "A condition caused by the presence of dissolved calcium bicarbonate minerals."?
Heat loss calculation is a vital component of an effective heating system. Which of the answers below would the "chimney effect" be a consideration of?
The pH scale is used to find the concentration of hydrogen ions. Which of the answers below correctly identifies the pH level of water if the amount of H⁺ ions decreases?
Expansion and contraction is used in the operation of some temperature controls. Which of the answers below correctly identifies one of the controls that uses this principal?
There are two units that are used to measure heat energy. Which of the answers below can be best defined as "The quantity of heat required to raise the temperature of one pound of liquid water by 1 degree Fahrenheit."?
Expansion and contraction is used in the operation of some temperature controls. Which of the answers below correctly identifies one of the controls that uses this principal?
There are several different ways expansion and contraction are handled in a piping system. Which one of the methods below would contain a common connector joining two bellows?
Expansion and contraction place different stresses on a piping system. Which ore of those forces below is best described as " the change in dimensional length of the piping from its free length in a direction parallel to its longitudinal axis."?
As a steamfitter, understanding how heat energy is transferred is vital. Which of the answers below can be best described as "When heat moves from one object to another object through direct touch."?
Water does not expand and contract as other liquids do. Which of the answers below correctly identifies waters reaction to being cooled to 1°C from 5°C?
Convection is one of the 3 ways to transfer heat. Which of the answers below correctly identifies the appliance that use convection in its operation?
Fahrenheit and Celsius are two different scales that measure temperature. Which of the answers below correctly identifies a temperature of 45°F in Celsius scale?
Water does not expand and contract as other liquids do. Which of the answers below identifies the expansion of water as it vapourizes to steam?
Several restrictions separate heating boilers from power boilers. Which of the temperatures below would apply to a high-pressure steam boiler system?
There are several different ways expansion and contraction are handled in a piping system. Which one of the methods below would best be suited for lines buried in unstable soil?
Fahrenheit and Celsius are two different scales that measure temperature. Which of the answers below correctly identifies a temperature change of 120.6°C in Fahrenheit?
As a steamfitter, understanding how heat energy is transferred is vital. Which of the answers below can be best described as "Different densities within liquids with the addition of heat energy."?
There are several terms that are closely related to water. Which of the answers below can best be described as "A numerical measure of the acidity or alkalinity of a solution."?
Several restrictions separate heating boilers from power boilers. Which of the pressures below would apply to a high-pressure steam boiler system?
Protons, neutrons, and electrons are all components of an atom. Which of the answers below correctly identifies the electrical charge of a proton?
Fahrenheit and Celsius are two different scales that measure temperature. Which of the answers below correctly identifies a temperature change of 67°F in Celsius?
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