Week #2 - Batteries / Starter Circuits Flashcards
True or False: A disadvantage of of conductance testing is that the battery electrolyte covers must be removed.
False
What is the recommended maximum charging rate for a heavy-duty, 12-volt battery?
60 amps
When jump-starting a truck with electronically controlled chassis components, where should the ground cable clamp be connected on the truck with the dead batteries?
On the battery ground post
Which of the following must be done when using a portable generator to blast charge discharged batteries on a vehicle?
a. Switch off all the chassis electrical system loads.
b. Switch on all the chassis electrical system loads.
c. Remove the discharged batteries before connecting to the generator leads.
d. Disconnect the engine ECM
a. Switch off all the chassis electrical system loads
What is a cathode?
A negative terminal
It two 12-volt batteries are connected in parallel, the resulting voltage would be what?
12 volts
When observing the sight glass in the integral hydrometer in a maintenance-free battery, what should be done if it appears clear or light color?
a. Replace the hydrometer.
b. Replace the battery.
c. Charge the battery for 3 hours and retest.
d. Load test the battery.
a. Replace the battery
Which of the following would result when two batteries are connected in series?
a. Current capability doubles
b. Voltage doubles
c. Voltage and current both double
d. Nothing, if both batteries have the same CCA and nominal voltage
b. Voltage doubles
Which of the following terms describes a recombinant battery?
Gel cell
The term deep cycling in the context of a battery means what?
Complete discharge followed by full recharge
Which of the following would be associated with the negative plate in a fully charged battery?
a. Pb
b. PbO2
c. PbSO4
d. H2SO4
a. Pb
What term describes the amount of time that a vehicle can be operated with its headlights on before battery voltage drops to 10.5V?
Reserve capacity
Why should frequent carbon pile load testing of batteries be avoided?
It deep cycles batteries, reducing service life
What is the recommended procedure when cranking a vehicle that is reluctant to start?
a. Crank for 15 seconds and then wait for 30 minutes before cranking again.
b. Crank for 30 seconds and then wait for 2 minutes before cranking again.
c. Crank for 2 minutes and then wait 20 minutes before cranking again.
d. Crank for 2 minutes and then wait for 30 seconds before cranking again.
b. Crank for 30 seconds and then wait for 2 minutes before cranking again
Which of the following would be associated with the electrolyte in a lead-acid battery?
a. Pb
b. PbO2
c. PbS04
d. H2SO4
d. H2SO4
What is an anoide?
A positive terminal
When the term gassing is applied to battery performance, which gas(es) is/are being referred to?
a. hydrogen
b. oxygen
c. neither oxygen nor hydrogen
d. both oxygen and hydrogen
d. both oxygen and hydrogen
True or False: A REPLACEMENT BATTERY prompt on an automated battery tester could be caused by poor battery terminal connections.
True
True or False: A BAD CELL-REPLACE prompt always requires battery replacement.
True
True or False: Conductance testing is considered to be an accurate method of assessing battery service life.
True - (Only 98% accurate according to Midtronics)
What is the recommended maximum charging voltage for a 12-volt gel cell battery?
14.1 volts
Which of the following data must be input for a typical automated battery tester to evaluate battery performance?
a. starter motor type
b. battery capacity rating
c. electrolyte specific gravity
d. ambient temperature
b. battery capacity rating
