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Answer:
Explanation:
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Is it permissible to install recessed fixture directly against wood ceiling joists? Explain why or why not.
Answer:
No
Explanation:
It is not permissible to install recessed fixture directly against wood ceiling joists when the label on the fixture does not indicate that it can be used for Insulation in contact with the recessed fixture .
Because The trim finishing and points of support of openings in finished surfaces are not allowed to be in contact with the combustible materials
technician A says that incandescent bulbs resist vibration well. Technician B says that HID headlamps require up to approximately 25,000 volts to start. Who is correct
Answer:
Both a and b.
Explanation:
HID headlamps require high voltage ignition to start just like street lamps. It requires almost 25,000 volts to start HID head lamps but require only 80 to 90 volts to keep it operating.
