Top dead center (TDC) defines the position of what engine component?

The following are all advantages of diesel engines, EXCEPT __________.

Select one:

Thermostat operational movement is controlled by a(n) __________.

How many crankshaft rotations are required to complete all four strokes of the Otto cycle?

Select one:

When the thermostat opens, coolant flows to the __________.

A heavy-duty diesel engine’s highest torque output is available __________.

Select one:

A diesel engine’s higher compression ratio translates into __________.

Select one:

Tech A says the intake stroke is happening when the piston is traveling from the top (TDC) to the bottom (BDC). Tech B says the following stroke is the compression stroke, and it compresses the air trapped in the cylinder. Who is correct?

At which of the following compression ratios does the efficiency of an engine begin to diminish with increasing compression?

Select one:

Tech A says to complete the four strokes of the engine cycle, the crankshaft turns one complete revolution. Tech B says one revolution will allow only half of the complete cycle.

What is the total engine displacement in a six-cylinder internal combustion engine when cylinder displacement equals 45 cu/in?

Most combustion slobber is produced during: Select one:

Clearance volume can be directly related to __________.

The bore of the engine is__________________.

The clearance volume of the engine is__________________.

The stroke of the engine is__________________.

What are the four strokes of 1 complete engine cycle in the order of occurrence?

Tech A says compression ignition engines are totally different than gasoline spark ignited engines. Tech B says there are some similarities because both systems work on the same principle; they only differ in how the fuel is ignited. Who is correct?

Which component would be considered the largest of the "structure components" with the engine assembly? Select one

Who developed the concept of the CI engine?

Tech A says the diesel engine must generate much higher temperatures to create combustion. Tech B says these high temperatures are created by more compression in the cylinder. Who is correct?

Technician A says transferring heat absorbed from the engine to the atmosphere is the primary function of the cooling system. Technician B says to do this, radiators that allow air to pass though cooling fins to release heat are used. Who is correct?

Which of the following is correct concerning combustion in diesel engines?

Select one:

What is ULSD?

ULSD has a sulfur content of __________

Technician A says biodiesel is manufactured from algae. Technician B says biodiesel is manufactured from beef tallow and soybeans. Who is correct?

Select one:

__________ was used to make the first biodiesel fuel.

Technician A says coal dust was the original diesel fuel. Technician B says the first biodiesel fuel was made out of peanut oil. Who is correct?

Select one:

Piston pins are also called _______ pins.

Any bolt-tightening sequence should take the cylinder head down in a minimum of ______

progressive steps of torque

The gap between the straight edge and a given surface can be measured by using ______.

What is a major cause of catastrophic engine failure?

True or False: Engine design has been greatly influenced by governmental regulations.

Technician A says the flywheel is a heavy, round casting bolted to the end of the crankshaft.

Technician B says the heavy mass of the flywheel develops considerable inertia that is used to

smooth out the intermittent impulses of the firing strokes.

Who is correct?