Final Flashcards
Technician A says that an analog scope can store a waveform for viewing later. Technician B says that the trigger level has to be set on most scopes to be able to view a changing wave form. Who is correct?
B
An oscilloscope display is called a __________.
Graticule
Setting the time base to 50 ms per division will allow the technician to view a waveform how long induration?
500 ms
A throttle position sensor waveform is going to be observed. What setting should the volts per division be set to see the entire way form from 0 V to 5 V?
1.0V/Div
Cycles per second are expressed in _________.
Hertz
The higher the AWG number, ________________.
The smaller the wire diameter
Which statement is true about fuse ratings?
Both the fuse rating should be higher than the normal current for the circuit and 80% of the fuse rating should equal the current in a circuit
The type of solder that should be used for electrical work is _________.
Rodin core
If a wire repair, such as repair is made under the hood or under a vehicle is exposed to the elements, which repair should be used?
Solder and adhesive-lined heat shrink or Crip and seal connectors
Many ground straps are uninsulated and braided because ____________.
But they are more flexible to allow for movement of the engine without breaking the wire and they help dampen radio frequency interference
On a wiring diagram, S110 with a “.8 BRN/BLK” means ________.
You splice of a brown with black stripe, wire size being 0.8 mm² or 18 gauge AWG
Where is connector C250 located?
Under the dash
When testing a relay using an ohm meter, which two terminals should be touched to measure the coil resistance?
86 and 85
Technician a says that a good relay should measure between 60 and 100 ohms across the coil terminals. Technician B says that OL should be displayed on an ohmmeter when touching terminal 30 and 87 which technician is correct?
Both
For an electrical device to operate, it must have __________.
Power and ground
A capacitor __________.
All of the above
Stores electrons, passes AC, blocks DC.
To increase the capacity, the capacitor should be connected in ____________.
Parallel
They charged capacitor acts like a ___________.
Battery
Unit of measurement for capacitor ratings is the ________.
Farad
A capacitor can be used in what components?
All of the above
A microphone, a radio, a speaker.
Ignition a says that a relay is an electro magnetic switch. Technician B says that a solenoid uses a movable core. Which technician is correct?
Both
Electromagnetic interference can be reduced by using a ________.
All of the above
Resistance, capacitor, coil.
And ignition coil is an example of a(n) ________.
Step up transformer
Magnetic field strength is measured in _______.
Ampere-turns
Technician a says that magnets are typically used in some speed sensors. Technician B says magnets are used and potentiometers. Which technician is correct?
A
Interior overhead lights (dome lights) are operated by door jam switches that________.
Either complete the power side of the circuit or complete the ground side of the circuit depending on the application.
A customer complained that every time he turned on his vehicles lights, the left side turn signal indicator light on the dash remained on. The most likely cause is ___________.
Either a poor ground to the parking light or taillight on the left side or a defective parking light bulb on the left side
A defective taillight or front park lightbulb could cause ____________.
All of these
Technician a says that automotive bulbs are identified by trade numbers. Technician B says that the trade number is the difference for each manufacturer for the exact same bulbs specification. Who is correct?
A
Technician a says that daytime running lights (DRLs) light the headlights, usually at reduced intensity, whenever the engine is running. Technician B says that high intensity discharge (HID) headlights are brighter and have a yellow tent. Who is right?
A
