PV

Question 0

Most PVs are made of?

Answer 0

Silicon

Question 1

Both residential. & commercial photovoltaic operate on same principle & both pose similar dangers, the greatest hazard is ?

Answer 1

DC shock.

Question 2

Integrated as well as flush mounted arrays may be difficult or impossible to detect at night time hours ?

Answer 2

True

Question 3

The use of roof top disconnects should not be relied upon?

Answer 3

True. Mainly installed in order to perform maintenance on the system.

Question 4

Hose streams should not be applied directly onto energized PV system components. A fog nozzle from a distance and set at a 30 degree fog. **straight stream & foam shall not be used because they are excellent conductors.

Answer 4

True

Question 5

Lithium ion batteries - dry chem or foam has proven ___ ?

Answer 5

Effective on battery fires.

Question 6

Pv systems do not produce electricity at night ?

Answer 6

True. However lightening flashes occurring at night can energize PV system.

Question 7

On blds with sloping roofs PV arrays will generally be installed on the __ & __ facing sides?

Answer 7

South & west facing sides

Question 8

Dry chem or foam effective on battery fires?

Answer 8

True