?Which of the following is true of fluxes?
A. ?Fluxes cause undercutting along the junction of the weld and the base metal.
B. ?Fluxes decrease the stability of the arc.
C. ?Fluxes provide oxidation.
D. ?Fluxes are slag formers.
Answer: D
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The operator's seat should be adjusted so that _____.
a. both feet are flat on the floor when they are off the pedals b. the knees are slightly bent when any pedal is fully depressed c. the legs are perfectly straight when any pedal is fully depressed d. only the toes are touching the floor when the feet are off the pedals
The pistons in a two-piston cylinder _____
a. always move together b. are called dual pistons c. can move together or separately d. do not move when the pressure is too high
Glass piping systems are installed for residential DWV applications.
Answer the following statement true (T) or false (F)
What determines: a. The current through an ideal voltage source? b. The voltage across an ideal current source?
Known quantities: Resistance of external circuit. Find: a) Current supplied by an ideal voltage source b) Voltage supplied by an ideal current source. Assumptions: Ideal voltage and current sources.