Technician A says that the bulb trade number is the same for all bulbs of the same size. Technician B says that a dual-filament bulb has different candlepower ratings for each filament. Who is right?
A) A only B) B only C) Both A and B D) Neither nor B
B
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The power generated by photovoltaic cells in an array ________________
A. is alternating current and can be directly used by the power company B. is direct current power C. can be increased by having the array track the movement of the sun D. both B and C
Which of the following statements best describes an asynchronous digital system?
A) It is difficult to design and troubleshoot because the output cannot change states unless a clock input is synchronized to the SET and CLEAR inputs. B) It is easy to design and troubleshoot because the exact times at which the output can change states is determined by a clock signal. C) It is easy to design and troubleshoot because the output state is independent of the inputs. D) It is difficult to design and troubleshoot because the output can change states anytime one or more of the inputs change.
This is built of fire clay or terra cotta:
A. chimney liner B. flue C. chimney anchors D. chimney cap E. chimney hood
Compression fittings for EMT are classified as raintight and ____-tight types.
What will be an ideal response?