A _____ refers to the full travel of the piston in the cylinder.

The _____ is a lobed shaft that is used to open and close the valves.

A(n) _____ is a device that transforms low-voltage current into high-voltage current that can cause a spark to ignite the fuel and air mixture in an engine.

Stroke is the distance the piston travels from TDC to ____________.

Volumetric efficiency is the ability of an engine to:

The total volume of space displaced by the pistons traveling up and down inside all the cylinders is ________________.

What is the compression ratio for most gasoline engines?

The measure of mechanical power is called _____________________?

RPM stands for?

In a four stroke engine, _____ strokes are needed to complete _____ operating cycle.

Which valve is open during the compression stroke?

An engine is a device that changes _________ energy in fuel to __________ energy.

What is this tool used for?

What is this tool used for?

What model year is the vehicle

Engines are either air cooled or liquid cooled

Types of Spark Plugs. Choose all that apply.

A spark plug needs _________ to create a spark.

The ignition coil transforms ______________ to ___________.

Atmospheric pressure is _____ psi at sea level.

The ________ design uses a one-way valve to hold pressure in the system while the pressure tester is connected and disconnected to the fuel rail.

In GDI engines, which of the following is the least risky way to remove the carbon on intake valves and runners, especially if the buildup is very heavy?

Tech A says that fuel pump pressure can often be tested by accessing a test port. Tech B says that fuel pump volume can be affected by the condition of the fuel injectors. Who is correct?

Tech A says that most electric fuel pumps are now mounted inside of the fuel tank. Tech B says that fuel flows through the center of the electric pump and is used to cool the pump. Who is correct?

What year was Can standardized ?

Network related codes will start with a

Which terminal of the OBD-II data link connector is the 12 volt for all vehicles?

What does CAN stand for?

In a vehicle, thermistors are used in various sensors related to:

Select one:

In an engine management system, _______ monitor various operating conditions.

Select one:

Which of the following modes is used by technicians to fool the engine into cranking without starting during a cranking sound diagnosis test?

Select one:

What is this part?

Name this part?

   While discussing throttle body carbon deposits, as shown in the figure, Technician A says if an approved aerosol spray cleaner doesn't properly clean a throttle body, the throttle body must be removed and disassembled. Technician B says a buildup of gum and carbon deposits may cause rough idle operation. Who is right?

  While testing a spark plug wire, as shown in the figure, Technician A says the manufacturer has a specified amount of resistance for each foot of plug wire. "Technician B says plug wire resistance readings should indicate no (zero) resistance. Who is right?

Technician A says if you are testing an ignition related no-start problem, you should always check for available spark at an ignition wire first. Technician B says if you have a test light connected to the negative side of the coil while cranking and the test light flickers, you need to test the secondary ignition system. Who is right?

Technician A says when high resistance is found in a circuit, check for burned wires, connector ring terminals, loose retaining nuts, or other wire and connector concerns. Technician B says that greenish white corrosion can happen at any point where the wire insulation has been pierced or opened in any way. Who is right?

Technician A says that if the exhaust has a bluish tint, it indicates that engine is burning coolant. Technician B says that black exhaust indicates a rich fuel mixture. Who is correct?

When doing the cylinder leakage test, it is acceptable to have a small amount of leakage past the

When testing intake manifold vacuum, a low steady reading at idle is likely to be caused by:

When heat travels from one solid to another, it is known as ______.

The automotive cooling system provides a means of transferring heat from the hot parts of the engine to ambient air.

__________ is a type of nontoxic antifreeze.

The liquid used for the cooling system is known as

The lubricating oil between the surfaces helps to cushion these shock loads, similar to the way a shock absorber ________ a bump in the road.

Which of the following is NOT a function of lubricating oil?

All of the following are advantages of synthetic oil over conventional oil EXCEPT:

Technician A says that oil pressure is vital to engine operation. Technician B says that a pressure sensor can turn on a light to alert the driver of low oil pressure. Who is correct?

The oil pump is designed to deliver the correct amount of oil for the engine speed and the thermal setting.

What does SRS stand for?

What is being measured?

What measurement is being taken?

What is being Measured?

What does the term TDC refer to?

What does BDC stand for?

Identify the part:

Identify the part:

What does OHV stand for?

Identify this tool:

What does DOHC stand for?

Identify this tool:

What is the meaning of the automotive abbreviation TCM ?

What is the meaning of the automotive abbreviation DTC ?

What is the meaning of the automotive abbreviation VIN ?

In​ ​ ​​_​___ , automakers implemented a universal system for these diagnostic codes known as OBD-II, which mandated that all vehicles have a common connector to access vehicle information.

What is the purpose of compression testing an engine?

What are the common causes of low compression in an engine?

Cylinder leakage is measured when the piston is at __________.

During a leak-down test you see bubbles in the coolant reservoir. What is the most likely cause?

Identify this tool:

Blue smoke emitting from the exhaust tailpipe is caused by the burning of:

The rapidly expanding gases produced by combustion pressurize the combustion chamber and push down on the piston during the ________, forcing it through the cylinder until it reaches the bottom of its travel.

This color exhaust emitting from a vehicle’s engine indicates an excessively rich fuel mixture:

The intake stroke starts with the exhaust valve closed, the intake valve(s) opening, and the piston moving from TDC to BDC.

Gasoline direct injection (GDI) places the fuel injectors in the cylinder head where they can spray fuel directly into the combustion chamber.

Select one:

The stoichiometric ratio, also referred to as lambra, is the ratio of air to fuel at which all of the oxygen in the air and all the fuel are completely burned. The stoichiometric ratio for gasoline is:

Select one:

Tech A says that a "P" in the DTC stands for a powertrain code. Tech B says a "U" stands for an undetermined code. Who is correct?

Select one:

The OBDII system constantly tests and analyzes each system's performance through a set of PCM programs called ________.

Select one:

_____ is shininess on the surface of the belt, which comes in contact with the pulley.

OHC engine stands for:

Technician A says that one job of the piston rings is to prevent blow-by. Technician B says that oil control piston rings help to allow oil into the combustion chamber to mix with the air–fuel mixture. Who is correct?

Which statement is correct

The rapidly expanding gases produced by combustion pressurize the combustion chamber and push down on the piston during the ________, forcing it through the cylinder until it reaches the bottom of its travel.

The engine’s so-called top end is the crankcase where the crankshaft, bearings, and connecting rod “big ends” reside.

The threaded plug shown has a thread pitch of _________.

The Clock Spring, which is also called_______.

The Last step after the service is completed, is to ________ the air bag

Which multimeter test mode is commonly used to test components such as switches, fuses, electrical connections, and individual conductors?

What color is the test lead that typically indicates negative or ground?

What type of measurement requires the component to be isolated and power removed?

This range is used when doing Direct Current (DC) Voltage Test.

A reading of 432 shows on the face of the meter set to the millivolt scale. The reading means _____.

A meter used to measure amperes is called a(n) _____.

A meter is set to read DC volts on the 4-volt scale. The meter leads are connected at a 12-volt battery. The display will read _____.

What is the function of a fuse in an automotive electrical system?

The color of the connector to disconnect the airbag is?

When testing door locks all switches work and all but one actuator works, you should next check?

With a wire installed at pin 30 and 87 on the A/C Clutch circuit the clutch engages this means that the problem is most likely in what part of the circuit.

–Sensing functions collect data about operational conditions or state of a device by measuring some value (Temp, position, speed, pressure…)

are referred to as:

What does "P.W.M." stand for?

The air-conditioning box has a ______ that allows removal of water collected from the moist air as it condenses on the cold evaporator and drips into the box.

Which of the following types of testing requires an empty air-conditioning system?

What does AWG stand for?

What does gauge mean?

Name the component in the picture :

Vehicles with automatic transmissions have:

If transmission main line pressure was lower than spec, how would it affect the apply devices?

Potentiometers have:

Atmospheric Pressure also known as:

Variable Reluctance Sensors:

Hall Effect Sensors:

The sun's heat travels by:

The fixed orifice tube in an A/C system is a metering device that forces a high-pressure:

What symbol is on Class K fire extinguishers ?

A list of the steps required to get the same results a task or activity is performed:

An instrument for making very accurate linear measurements introduced in 1631 by Pierre Vernier of France. What is the name of the modern version of this tool?

Flat Metal Strips used to measure gaps:

After replacing CAN high and CAN low wires on a CAN bus system, how should they be positioned?

_______usually green and have right hand threaded hose connectors.

Colorless, Garlic-like odor, Extremely unstable at pressure over 15 psi,

Cylinder contains acetone-saturated porous material to help stabilize fuel gas, Cylinder pressure may be as high as 250 psi when stabilized with acetone, Working pressures range from 1 – 15 psi

What is the purpose of a flashback arrestor in a welding setup?

A type of Hexagonal tool used to loosen and tighten fasteners:

This is a 3-4 inch micrometer. What is it reading?

A chemical compound that prevents threads from loosening. Often Used on Driveline components:

What is live data streaming in scan tools?

Documents that give product composition and precautionary information for any material that could present a health or safety hazard. These documents are prepared by the material’s supplier.

The "working" pressure of the acetylene hose should be between