List the safety precautions that should be observed when starting a gas furnace
What will be an ideal response?
Don't turn anything on until you have inspected the furnace! Check for the presence of gas in the area around the furnace. Make sure there are no combustible items stored near the furnace. Check the vent.
Check for combustion air.
Do not position yourself directly in front of the furnace while it is lighting. Once the furnace lights, check the vent to make sure it is working.
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Durum wheat is used for what purpose?
What will be an ideal response?
The welding wire conduit must be securely attached to the gas diffuser and ____ to prevent wire jams caused by misalignment.
A. solenoid B. gun lead C. contact tube D. power source
A transformer has a turns ratio of 1:3. The primary voltage is 120 V. The secondary current is 1.2 A. What is the primary current?
A. 0.4 A B. 0.84 A C. 2.4 A D. 3.6 A
Manual starters that are installed in a(n) ____________________ inside a wall are especially susceptible to ambient temperature problems.
Fill in the blank(s) with the appropriate word(s).