Technician A says the gear reduction occurs when the drive gear turns faster than the driven gear. Technician B says that overdrive occurs when the driven gear turns faster than the drive gear. Which technician is correct?
A) Technician A
B) Technician B
C) Both technicians A and B
D) Neither technician A nor B
C
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Guardrails, toe boards, and midrails should be on all steel scaffolds ______ .
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Use a metric ruler to measure the lengths of each of the objects.
Fill in the blank(s) with the appropriate word(s).
What is the typical airflow per ton of residential air conditioning equipment?
What will be an ideal response?
What components are added to make a two-stage furnace?
A) An extra set of burners and an extra gas valve B) Electric heat strips and a second stage sequence C) A two-stage gas valve, two draft proving switches, and a two-speed induced draft fan D) A second heat exchanger and an electric vent gas damper