(I)Element 3-61 Batteries-2

Question 1

When an emergency transmitter uses 325 watts and a receiver uses 50 watts, how many hours can a 12.6 volt, 55 ampere-hour battery supply full power to both units?

Answer 1

1.8 hours

Question 2

What current will flow in a 6 volt battery with an internal resistance of 0.01 ohms, when a 3-watt, 6 volt lamp is connected?

Answer 2

.04995

Question 3

A Ship RADAR Unit uses 315 watts and a radio uses 50 watts. If the equipment is connected to a 540 ampere hour battery rated at 12,6 volts, how long will the battery last?

Answer 3

1 hour and 43 minutes

Question 4

If a marine radiotelephone receiver uses 75 watts of power and a transmitter uses 325 watts, how long can they both operate before discharging a 50 ampere hour 12 volt battery?

Answer 4

1 1/2 hours

Question 5

A 6 volt battery with 1.2 ohms internal resistance is connected across two light bulbs in parallel whose resistance is 12 ohms each, what is the current flow?

Answer 5

.83 amps

Question 6

A 12.6 volt, 8 ampere hour battery is supplying power to a recevier that uses 5 watts and a radar system uses 300 watts. How long will the battery last?

Answer 6

17 minutes