Technician A says that many power windows and power door locks use a permanent-magnet motor with a built-in circuit breaker and is reversible. Technician B says that the control switches and relays direct the current through the motor(s). Who is right?
A) A only B) B only C) Both A and B D) Neither A nor B
C
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When drawing a concrete slab foundation layout, the size of the chimney should be drawn based on the measurements from the ____.
A. site plan B. foundation plan C. site map D. framing plan
If aluminum power wire is used, to make a safe connection the installer should make sure:
A) That the furnace power connectors are rated for aluminum wire. B) To first spray the lugs with insulating spray. C) To use an aluminum-tipped screwdriver to tighten the lugs. D) The aluminum wire is one size smaller than a comparable copper wire.
Which sprinkler system component is used as an alternative to locking a main control valve in the open position?
A. tamper switch B. check valve C. fire department connection D. alarm valve
Tap cutting speeds that are too high:
A) May cause burnished threads B) Use too much cutting oil C) May cause tap breakage or dulling D) All of the above