Brakes
What's the order of bleeding brakes and what are the four methods?
RR, LR, RF, LF
Manual (2-person), Gravity, Pressure, Vacuum
3 color codes and their wire sizes
18-22 RED
14-16 Blue
12-10 Yellow
When a steering component is bent and your car swerves to one side after hitting a bump. Also, what is the test for this?
Bump Steer
Bounce Jounce
What must be done to prepare for a compression test?
Disable fuel
Disable Spark and remove all plugs
Technician A states that a short circuit to ground in a circuit decreases resistance. Technician B states that a short circuit increases current flow.
Both Technicians
Lack of brake pedal free play may cause
Pressure buildup and dragging brakes
What makes a:
Conductor
Insulator
Semi-Conductor
Conductor= <4 electrons in the valence band
Insulator= >4 electrons in the valence band
Semi-Conductor= 4 electrons in the valence band
Procedure for bleeding the steering system
Lift Tires
Start Engine
Rotate steering wheel from stop to stop
How would you check the catalytic converters with a thermometer?
Get a reading at the input weld and a reading at the output well. If the reading at the output is greater than the reading at the input, the catalytic converter is operating.
What tool can check continuity in wires that carry digital signals?
Logic Probe
A short power assist brake booster push rod will lead to which of these?
Sticking
Excessive Travel
Leaking at the relief valve
Excessive brake pedal travel
What is the voltage drop @ resistor 2 of 3 equal resistors and a voltage of 12v?
4 volts
Where is the load of the vehicle with a MacPherson Strut front end?
At the bottom of the strut
What is meant by an interference fit engine?
What is meant by free-wheeling?
If the timing belt or chain breaks, there will be interference between the pistons and valves and damage will occur.
When the belt or chain breaks, the crankshaft keeps moving and the camshaft stops.
What is true about a series circuit?
a. Highest resistance contains highest voltage drop
b. Lowest resistance contains highest voltage drop
c. Lowest resistance contains no voltage drops
d. Current equals voltage if all resistors are the same
a. Highest resistance contains highest voltage drop
The wheel speed sensor is being diagnosed with an OEM diagnostic scan tool. Technician A says to verify the wheel speed sensor operation and compare all four wheel speed sensor outputs to the data list.
Technician B says that the wheel’s direction of rotation should be verified by looking at the direction on the scan tool data list. Who is correct?
Tech A
The current that goes into a series circuit is equal to the current that exits the circuit.
Which ball joint is the load-bearing ball joint and which is the non-load-bearing ball joint in a suspension?
The load-bearing has the spring connected to its control arm and the non-load-bearing does not.
How much horsepower is lost or gained for every 1000 feet of elevation?
3%
While you use a DMM voltmeter function to evaluate voltage drop, the meter leads need to be connected in what way?
Across the circuit or component
On ABS systems that have a high-pressure accumulator, this is depressurized by:
Pumping the brake pedal 25 times with the engine off.
Kirchoff's voltage law states:
The sum of all voltage resistances around a closed loop must be zero.
Name the three types of suspension springs
Coil, Leaf, Torsion Bar
What is the stoichiometric ratio?
14.7:1 Air to Fuel
An analog ohmmeter needle won’t move when connected to both sides of the rotor. What does this mean about the rotor winding?
It's open