Part # 2 Flashcards
- Hi Limit is normally:
a. Close on temperature drop switch
b. Operator Switch
c. Hi Voltage Switch
d. Normal Close Switc (D)
- Which term is used to describe a stationary device used to divert the flow of flue gases?
a. Air shutter
b. Gas Burner
c. Baffle (C)
d. Automatic Vent Damper
- How shall gas piping or tubing be identified in commercial, industrial or institutional buildings?
a. The entire piping/tubing system shall be painted yellow
b. The piping/tubing system shall be provided yellow banding maximum 20ft (6m) intervals
c. The piping/tubing system shall be labeled or marked “GAS” utilizing yellow labels or marking maximum 20ft (6m) intervals
d. Any of the above are acceptable (D)
- Under OSHA, what is the permissible exposure to CO level for 8 hours?
a. 25 ppm of CO
b. 35 ppm of CO (B)
c. 10 ppm of CO
d. 0 ppm of CO
- An orifice for a propane appliance with the same input as a natural gas appliance is:
a. The same size as the natural gas orifice
b. Smaller than the natural gas orifice (B)
c. Larger than the natural gas orifice
d. Interchangeable with the natural gas orifice
- On a 120 Volt receptacle, the neutral connection terminals are:
a. Gold
b. Green
c. Silver (C)
d. Black
- A foot has inches ____ and a meter has ______ centimeters:
a. 10 Inches, 100 Centimeters
b. 12 Inches, 100 Centimeters (B)
c. 10 Inches, 100 Centimeters
d. 100 Inches, 12 Centimeters
- The diameter of a drip or dirt pocket shall be equal to the diameter of the piping or tubing that it serves, or:
a. 1 Inch (25 mm)
b. 2 Inches (50 mm) (B)
c. 3 Inches (75 mm)
d. 4 Inches (100 mm)
- The specific gravity of propane vapour is:
a. Greater than that of air (A)
b. Less than that of natural gas
c. Less than that of air
- Which of the following electrical sources could cause a fire in the workplace?
a. Light bulbs in contact with fine dust or oily surfaces
b. Broken electrical wiring
c. Unshielded switches in dusty areas
d. All of the above (D)
