If pulsed DC current is not present in the flame rod, what is the effect on the gas valve in a direct spark-ignition system?
A) The system will shut down.
B) The valve will open.
C) Pulsed DC current has no effect on the gas valve.
D) The valve will remain closed.
D
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If you stack eight each of these steel bars, what is the height of the stack, in inches?
Reduce all fractions to their simplest forms. Convert all improper fractions to mixed numbers. Provide answers in the following format:
Fraction: 3/4
Mixed number: 1 5/8
To prevent burnthrough, a torch should be raised or tilted, keeping the outer flame envelope over the molten weld pool until it solidifies.
Answer the following statement true (T) or false (F)
Angle drilling is done by:
A) A tilting type table or angular vise B) An angle drill press C) An angular workpiece D) Angle iron
Technician A says that solvents currently in use in a parts washer must always be labeled. Technician B says that SafetyKleen is a vendor that recycles and disposes of used solvent. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B