05 Relay Pumping

Question 1

Reasons for relay pumping

Answer 1

1. Long distances between water source and quantity of water needed
2. Overcome excessive pressure caused by elevation

Question 2

Tested psi for hose lines:

Answer 2

3in and smaller: 400psi
5in: 300psi

Question 3

Max discharge pressure

Answer 3

3in: 350psi
5in: 250psi

Question 4

Relay op can only be as good as the equipment used. The _______________ of each apparatus is the primary consideration.

Answer 4

Pump Capacity

Question 5

At 200psi, the rated capacity drops to

Answer 5

70%

Question 6

At 250psi, the rated capacity drops to

Answer 6

50%