Engine components

Question 1

Diesel Engines: ___ alone enters the cylinder of a diesel engine

Answer 1

air

Question 2

The air is compressed by the upstroke of the piston and the diesel fuel is ___ into the combustion chamber near the ______

Answer 2

injected / top of the upstroke (compression)

Question 3

The air becomes _____ during compression and the diesel fuel ignites and burns as it is injected into the ____.

Answer 3

greatly heated / heated air

Question 4

No spark plugs need but ____ are used in some models to assist in starting

Answer 4

glow plugs

Question 5

Pressures developed by the compression stroke can reach ___

Answer 5

500 psi

Question 6

For each pound of pressure exerted on the air there will be a temperature increase of about ___

Answer 6

2*

Question 7

At the top of the chamber, the temp will be about _____

Answer 7

1000*

Question 8

The speed and power output of diesel engines are controlled by ____

Answer 8

the quantity of fuel injected into the cylinder

Question 9

Engine lubricating oils have four functions: To prevent ______ contact in moving parts of mechanisms

Answer 9

metal-to-metal

Question 10

Engine lubricating oils have four functions: To assist in carrying ___ away from the engine

Answer 10

heat

Question 11

Engine lubricating oils have four functions: to _____ the engine parts as they lubricate

Answer 11

clean

Question 12

Engine lubricating oils have four functions: to _____ between piston rings and cylinder walls to prevent blow by of combustion gases

Answer 12

form a seal

Question 13

Primary function of engine lubrication is to reduce the ______

Answer 13

friction between moving parts

Question 14

Friction in the engine is

Answer 14

destructive and creates heat that can cause moving parts to disintegrate

Question 15

Water, one of the products of combustion will seep by piston rings as _____ and will condense in the crankcase

Answer 15

steam

Question 16

Water emulsifies with the oil and with any dirt or foreign matter present to form a _____

Answer 16

thick sludge which clogs up the oil lines and lubricating passages.

Question 17

Contamination of engine oils is minimized by

Answer 17

controlling engine temperature, utilizing an air cleaner on the carburetor, oil filters and controlled crankcase ventilation

Question 18

Radiator: Pump draws the coolant from the bottom of the ____, forces it through the jackets and passages and ejects it into the _____ on top of the radiator

Answer 18

radiator / upper tank

Question 19

Radiator: the coolant passes through a ____ to the bottom of the radiator and is again circulate through the engine

Answer 19

set of tubes