DMM (Digital multi meter)
electrical symbols
wiring & diagrams
procedures
circuit protection
electrical components
instructor questions
200
what can be used to measure voltage drop?
DMM ( digital multi meter )
200
what is this symbol?
fuse
200
where can you find vehicle specific wiring diagrams
All data or repair software
200
what is one of 2 ways to test a switch?
the voltage and or continuity
200
what types of circuit protection devices can be checked with an ohmmeter or test light
fuses, circuit breakers, and fusible links
200
A momentary contact switch is used to operate the _____.
horn
200
The electrical system of a modern automobile runs at _____ volts when the engine is running
14
400
The best method for testing wires and electrical connections is a(n) _____.
voltage drop test
400
what is this electrical symbo?
!!!!!!!!!!!!!!!!! double jeopardy!!!!!1111111
battery
400
where can the schematic be found for a relay?
outside of a relay or in a wire diagram
400
name one of two things a test light can not check for?
exact voltage or exact resistance
400
what is dielectric grease used for?
to prevent corrosion
400
Which of the following is a source of energy in an automobile’s electrical system?
battery and/or AC generator/alternator
400
secondary wires are used to power _______.
!!!!!!!!!!!double jeopardy !!!!!!!!!!!!!!
spark plugs
600
The black DMM (digital multi meter) plugs into what port?
COM input jack or ground
600
what is the wave form for ac voltage?
sine wave
600
Increasing the voltage of an automotive electrical system allows the wires to be __________ yet supply the same electrical power as a low-voltage system with larger wires?
smaller
600
what is the best method for testing wires and electrical connections when power and ground are applied to a circuit is _________?
voltage drop test
600
a circuit breaker will reset after the problem has been repaired or by pressing the ____ button
reset. most are self resetting
600
the speed at which the magnetic field spins past the coil windings in an alternator determines the _________ ___________?
electricity produced
600
if you have eight 6 volt batteries wired in series what will the voltage be at the end of the circuit?
48v
800
The unit for measuring electrical current is _____.
!!!!!!!!!double jeopardy!!!!!!!!!!!!
amps
800
what is this symbol?
ohms
800
the location of electrical components, routing of wiring, color coding of wiring, and electrical connnections can be found where?
wiring digram
800
The unit for measuring electrical resistance is _____.
ohms
800
a fuseable link has the same function as a _______?
!!!!!!!!!double jeopardy!!!!!!!!!!!!
fuse/maxi fuse
800
the amount of electricity produced by an AC generator depends on the strength of the _______ __________.
magnetic field
800
large diameter battery cables are best for supporting high ________ circuits.
amperage
1000
what can be used to measure circuit resistance?
volt meter, ohm meter, or DMM
1000
how many electrical components have electrical symbols associated with them
ALL OF THEM
1000
To complete the electrical path to the vehicle’s battery, the vehicle’s metal frame components are often part of the electrical circuit and is use as a ___________?
ground
1000
what should be disconnected before checking resistance of a component?
the component itself
1000
what is heat shrink tubing used for?
to insulate and seal soldered and wire connections
1000
The function of a resistor in an electrical circuit is to limit _____.
current (amps)
1000
fixed value, stepped, and variable area all types of _______?
resistors
1200
what does an infinite reading, OL, or OFL mean on a DMM
open circuit
1200
The wave form of constant DC voltage on a lab scope is a _____?
Flatline
1200
All wires are ______ ________ to identify their location and what components they operate.
!!!!!!!!!!!!!double jeopardy!!!!!!!!!!!!!!!!!!!!!!!!!
color coded
1200
What type of current constantly changes in voltage and direction?
AC voltage
1200
what are two types of circuit protection?
fuse, circuit breaker
1200
potentiometer, rheostat, and thermistor are all what type of resistor
variable resistor
1200
if you wire six 12 volt batteries in parallel what will the voltage be at the end of the circuit?
12 volts
1400
What happens when you connect a ohmmeter to a live circuit?
it could cause damage to the meter.
1400
what is this electrical symbol?
ground
1400
what color wire is used on the air bag system? It means caution!!!
yellow
1400
A circuit is open or closed when complete?
!!!!!!!double jeopardy!!!!!!!!
open
1400
what is electrical tape used for?
to insulate and seal soldered and wire connections
1400
A simple on/off switch with one input terminal and one output is a _____type switch.
!!!!!!!!!!!!!!!!!!!!double jeopardy!!!!!!!!!!!
anoher one DJ KHALId
SPST (single pole, single throw)
1400
this type of circuit protection device is found near the battery, alternator, or starter
fuseable link