Why do direct spark ignition furnaces and hot surface ignition furnaces require redundant gas valves?
A) in case one fails to open, the other will B) so that the unit will not overheat
C) because they require more fuel D) for safety since there is no pilot safety solenoid
Question 2
Which of the following statements applies when heating a bearing with a torch during the removal process?
a. Never use a propane torch.
b. Use an aluminum ring for a heat sink.
c. Cool the bearing with a wet cloth as soon as it is removed.
d. Do not reuse a bearing removed this way.
surface of a crimson clove
Traction is the application of a pulling force to maintain bone alignment during fracture healing. D
The varying voltage signal from the pickup coil triggers the ignition module. The ignition module ...
An upward-sloping spark line usually indicates a mechanical engine problem or a lean air–fuel ...
Mucosal surface of the small intestine.
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum