Personal protection is being discussed. Technician A says safety glasses should offer some type of side protection. Technician B says rubber gloves should be worn when handling caustic chemicals. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: C

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A(n) ____________________ is the most visually attractive mounting, but also the most expensive.

Fill in the blank(s) with the appropriate word(s).

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Where is the thermostat's sensing bulb located on a window air conditioner?

What will be an ideal response?

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As additional branches are added to a a parallel circuit, total circuit resistance _______

A) Decreases B) Remains the same C) Increases D) None of these

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How is voltage drop through the power wire to the unit checked?

A) The difference between the minimum and maximum allowable nameplate voltages is the voltage drop B) The difference in voltage before and after starting the furnace is the voltage drop C) Measure the resistance of the power wire from the source to the furnace and multiply it times the furnace operating current D) The difference between the nameplate voltage and the actual operating voltage is the voltage drop

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