TB 65 Vehicle Battery Systems

Question 1

The “Six-Battery System” evolved from the need of an electrical system which was capable of maintaining the _________. while having enough amperes to supply the rest of a vehicle’s electrical requirements.

Answer 1

800 MHz Radio, the UHF Radio, the VHF Radio and the Mobil Data Terminal (MDT)

Question 2

Consist of ______ batteries

Answer 2

six (two sets of three), lead acid 12 volt

Question 3

Batteries are rated at _____ at 0 degrees F

Answer 3

950 cold crank amperes

Question 4

They reserve capacity of _____ at _____

Answer 4

190 minutes at 25 amperes draw per hour.

Question 5

Diesel engines draw approximately ____ when starting.

Answer 5

two amperes per cubic inch

Question 6

A 1990 Detroit Diesel BV 92 Engine with 736 cubic inches takes about ____ to start

Answer 6

1472 amperes

Question 7

Batteries are connected in ____ to the rest of the electrical system.

Answer 7

parallel

Question 8

Parallel, allows the alternator or the on board battery charger to charge ____.

Answer 8

all batteries simultaneously

Question 9

____ of the six batteries are used to start the apparatus.

Answer 9

Five

Question 10

The ____ is not connected to the starting circuit and is strictly used to keep the 800 MHz Radio, the UHF and VHF Radio and the MDT powered at all times.

Answer 10

sixth battery (right rear)

Question 11

The battery selector switch has been chanced to a simple ____. This new switch is located in proximity to the old battery switch.

Answer 11

“on-off” switch

Question 12

The combined use of the 800 MHz Radio, the UHF and VHF Radio, and the MDT units, causes a constant _____ draw on the battery system.
Due to this constant drain, an _____ has been installed on each apparatus.

Answer 12

eight amperes per hour / automatic onboard (40 amp) battery charger

Question 13

This charger is connected _____ Heavy apparatus must be plugged in when the vehicle, is in quarters.

Answer 13

to the “engine block” heater receptacle (110 volt shore power).

Question 14

When the apparatus is out of service for an extended period of time; _____, the radio “cut off switch” must be turned off to avoid running down the batteries. This switch is located inside the radio compartment.

Answer 14

over ten hours or the on-board battery charger cannot be plugged in

Question 15

An audible warning device activates anytime the batteries fall _____. When the device activates, the apparatus must either be started or the on-board battery charger must be plugged in.

Answer 15

below 12.2 volts

Question 16

Four battery system is designed for _____

Answer 16

LAFD rescue ambulances

Question 17

Four battery system: consists of _______ under the hood and _____ in the left side compartment of the vehicle

Answer 17

2 batteries / 2 batteries

Question 18

Four battery system: are connected in ___

Answer 18

parallel

Question 19

Four battery system: will charge all batteries simultaneously.

Answer 19

the alternator or the on-board battery charger

Question 20

Four battery system: A battery charger is located under the passenger seat of the ambulance. This charger is the same ____ charger used on heavy apparatus.

Answer 20

40 amperes

Question 21

Four battery system: A radio “cut off switch” is located under the bench seat in the cabin of the ambulance. When the ambulance is ____, the radio “cut off switch” shall be turned off to prevent the batteries from being drained.

Answer 21

out of service for over ten hours or the battery charger cannot be plugged in

Question 22

Four battery system: Ambulances have been fitted with a low voltage warning buzzer. An audible warning will sound when the batteries ____

Answer 22

fall below 12.2 volts.

Question 23

Two battery system designed for emergency _____

Answer 23

sedans and suburbans

Question 24

Two battery system employs two batteries under the hood, ______ on each side of the engine with both batteries connected in parallel.

Answer 24

One

Question 25

Two-Battery System: Emergency sedans have a 40 amperes battery charger in the trunk and a charger plug located on the ___

Answer 25

left rear fender.

Question 26

Two-Battery System: Suburbans have a charger in the rear storage area and a charger plug on the ___

Answer 26

left front fender.

Question 27

Emergency sedans ____ in when the vehicle is in quarters.

Answer 27

must be plugged

Question 28

Emergency sedans have a radio “cut off switch” located in _____

Answer 28

the trunk.

Question 29

Suburbans have a radio “cut off switch” located on the ____

Answer 29

center console between the driver and passenger seat.