Explain when an electrician would use an adjustable bar hanger to mount a ceiling electrical box.
What will be an ideal response?
When installing a light fixture or ceiling fan in a ceiling and the box location needs to be adjusted between two ceiling joists.
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_____ water is the water in streams, lakes, and oceans
a. Ground c. Muddy b. Surface d. Clear
The use of biofuels will not help to decrease harmful emissions
Indicate whether the statement is true or false
Technician Asays a ground in the circuit between the indicator light and the pressure switch could cause the oil pressure light to stay on when the engine is running. Technician B says an open in the pressure switch could cause the oil pressure light to stay on. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
If a 1 M? resistor, 0.47 M? resistor and 0.5 M? resistor are connected in parallel across an 18 V source, what is the total current if the 1 M? resistor opens?
A) 92.3 mA B) 74.3 ?A C) 92.3 ?A D) 74.3 mA