IMC Journeyman Test Practice

Underground ducts when back filled with sand or pea gravel, fill should not contain stones larger that ______.

• 1 1/2

• 2

• 2 1/2

• 3

Gas piping may run through which of the following?

• Chimney

• Kitchen cabinets

• supply ducts

• elevator shaft

Horizontal 1 1/4'' copper tubing shall be supported at what MAXIMUM distances?

• 6 ft

• 8 ft

• 10 ft

• 12 ft

What type of valve may be placed between the boiler safety valve and the atmosphere on the discharge pipe from the valve?

• backup safety valve

• locked open gate valve

• check valve

• no valve can be located there

Ducts that operate at temperatures exceeding _____F shall have sufficient thermal insulation to limit the exposed surface temperatures.

• 120F

• 150F

• 200F

• 250F

When using aluminum ducts, avoid

• Pittsburg seams

• Button punch snap lock seams

• pipe lock seams

• lap and rivete seams

Given: A fuel gas regulator installed next to an appliance and requires a vent. Where shall it be piped to?

• To the outside of the building

• into an exhaust system of another appliance

• to an adjacent regulator

• into the gas piping system

A type B gravity vent shall terminate what MINIMUM distance above the highest vent collar it serves?

• 3'

• 5'

• 7'

• 9'

A blower or fan used for the purpose of distributing supply air to a room, space, or area is a

• Return fan

• Exhaust fan

• Air-handling Unit

• Make-up unit

Termination locations for gas vents with listed caps 12'' or less in size at least ____ feet from a vertical wall.

• 3

• 4

• 8

• 10