Most gas furnaces that have been installed from the past 10 years to current installations use an electronic control board, usually called a(n) ____________________ module, which supervises the operation of the entire gas furnace.
Fill in the blank(s) with the appropriate word(s).
ignition
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Limiting the handling of items that were touched by the mouths of passengers, avoiding touching the face while servicing, and frequently washing the hands with soap to reduce exposure potential are aspects of ______________.
Fill in the blank(s) with the appropriate word(s).
Improving livestock by creating transgenic animals holds great promise for the agriculture industry
Indicate whether the statement is true or false
The stationary magnet of a DC motor is represented by the _____
a. armature b. field poles c. commutator d. rotor
Structural steel shapes may be straightened by resting one edge of the member against a rigid retainer and then applying pressure with a high-strength plunger apparatus, or steel shapes may be bent when long radius curves are required. What is the most common machine used in these processes?
A. A curvature press B. A bend press C. An arc press D. A warp press