Gas Engines
HVAC system
Automatic Transmission
Hydraulic Brakes
Electrical Diagnosis
100

The camshaft rotates at what speed in relation to the crankshaft?

What is half?

100

The evaporator in an A/C system is a type of ........?

What is heat exchanger?

100

The transmission's torque converter is attached to what component on the engine?

What is the flexplate?

100

When applying the brakes the vehicle exhibits a hard pull to the right side but travels straight under normal driving.  This could be an issue with the brakes on the .......?

What is left side?

100
A vehicle's battery dies overnight, the technician has charged and load tested the battery with passing results.  The next test accomplished should be a ........?

What is parasitic draw test?

200

Piston slap is normally most noticed under what engine condition?

What is cold start up?

200

The heater in a vehicle is not performing to expectation.  The coolant temp gauge shows normal and the inlet hose to the heater core is at operating temp while the outlet is cool to the touch.  This could be an indication of a ..........?

What is clogged heater core?


200

What component in the torque converter has a one-way clutch that allows it to spin freely in one direction, yet locks it from turning in the other direction?

What is the stator?

200

When handling DOT 3 brake fluid the cap should always be reinstalled on the bottle because the fluid is ........?

What is hygroscopic and it absorbs moisture from the air?

200

The charging system gauge in the instrument cluster reads about 13VDC with no load on the system.  The technician measures battery voltage at the battery and it agrees with the gauge, but the voltage at the output terminal of the alternator reads 14.3VDC.  The next test the technician should accomplish is a .........? 

What is charging system voltage drop test?

300

When looking at a two valve cylinder head combustion chamber, the larger of the valves would be the.....? 

What is intake valve?

300

While doing a performance check on a vehicle's A/C system, the high side pressure rises well above normal pressure readings for the ambient temp.  This is most likely an issue with the .........?

What is cooling fan or airflow across the condenser?

300

A band in a transmission is anchored to the case on one end and applied at the other end by a component called a ........?

What is servo?

300

On a vehicle with front disc / rear drum brakes the brake pedal travel when applied is excessive.  The first thing a technician should check would be .......?

What is rear brake shoe adjustment and condition?

300

When servicing a battery, the technician notices corrosion on the battery terminals.  What solution can be used to clean the terminals?

What is baking soda dissolved in warm water?

400

What keeps the engines bearings from contacting the engine component it is allowing to rotate? 

What is the engine oil?

400

A 50/50 mixture of ethylene glycol and water will freeze at roughly what temperature Fahrenheit?

What is 34 degrees?

400

When cleaning and drying the components in an automatic transmission, never use what common item found in our shops?

What are shop rags?

400

When testing a vacuum booster on a vehicle the technician pumps the brake pedal with the engine off until it is firm and upon starting the car the pedal drops about 1/4" or so.  This indicates ........?

What is normal operation?

400

A vehicle with an automatic transmission comes to the shop with a no crank condition.  Battery voltage is correct, the battery passes a load test and the "crank" fuse is good and has battery voltage.  When using the ignition switch, no audible noise comes from the starter.  With the vehicle in park, using a remote start switch between the positive and "S" terminal at the solenoid, the starter will engage and the vehicle will start. Besides the ignition switch, what other component should be tested next?  

What is the neutral safety or transmission range switch?

500

When performing a compression test, two adjacent cylinders have identical and low compression readings compared to the rest of the cylinders.  This can indicate a bad.....?

What is head gasket between the two bad cylinders?

500

A single evaporator CCOT A/C system will have a clutch cycling switch, an accumulator and what other component that would not be found on a system with a TXV? 

What is an orifice tube?

500

On most automatic transmissions, how many internal components must be applied or holding in order to achieve the gear being used.......?

What is two?

500

When applying the brakes on a hydroboost system, a moan/whine sound is heard from the engine compartment.  What should the technician check next?

What is power steering fluid?

500

When performing a voltage drop test on the ground circuit of a brake light bulb, 12.6vdc is indicated on the multimeter.  This is an indication of a ........?

What is bad ground?