Engines

Question 1

converts heat energy of fuel into mechanical energy

Answer 1

internal combustion engine

Question 2

two types of combustion engines

Answer 2

internal combustion engine

external combustion engine

Question 3

thermal efficiency range of internal combustion engine

Answer 3

15% to 40%

Question 4

combustion chamber of engine

Answer 4

cylinder

cylinder block

Question 5

forms a cover on one end of the cylinder

Answer 5

cylinder head

Question 6

transmits the force of expansion from inside the cylinder to the connecting rod and drives the crankshaft into rotary motion; designed to withstand extreme heat and pressure, usually made of cast iron and aluminum

Answer 6

piston

Question 6

transmits the force of expansion from inside the cylinder to the connecting rod and drives the crankshaft into rotary motion; designed to withstand extreme heat and pressure, usually made of cast iron and aluminum

Answer 6

piston

Question 7

functions as a seal against the cylinder wall

Answer 7

piston rings

Question 8

types of piston rings

Answer 8

compression ring (top)
middle piston ring (middle)
oil scraper ring (bottom)

Question 9

seals the gap between the piston and cylinder wall

Answer 9

compression ring

Question 10

ensures that the combustion chamber and the crank case are segregated

Answer 10

compression ring

Question 11

adjustment to match the required power

Answer 11

overhaul

Question 12

combustion chamber outside the cylinder

Answer 12

external combustion chamber

Question 13

Advantages of ICE over ECE

Answer 13

1. more efficient
2. weigh less
3. more compact
4. original cost per hp
5. less time and work necessary preliminary to starting
6. less time and attention required while in operation
7. range of adaptability

Question 14

receives, exert, and transmits the motive forces

Answer 14

power chain components

Question 15

constrain and support moving parts

Answer 15

stationary parts components

Question 16

time the operating sequence

Answer 16

valve system components

Question 17

cool and lubricate the surfaces and provide ignition and fuel for the engine

Answer 17

auxiliary parts and accessories component

Question 18

receives and transmits the pressure forces in the combustion chamber to the rotating crankshaft

Answer 18

piston

Question 19

retain compression; reduce cylinder wall contact thereby reducing friction losses wear

Answer 19

piston rings

Question 20

serves to fasten the piston to the upper end of the connecting rod; wrist pin

Answer 20

piston pin

Question 21

transmits the power of combustion from the piston to the crankshaft

Answer 21

connecting rod

Question 22

bearing where connecting rod fastens to crankshaft

Answer 22

connecting rod bearing

Question 23

converts the rectilinear motion of the piston into rotation

Answer 23

crankshaft

Question 24

inertia, keep the engine at uniform speed when the crankshaft is receiving power from the piston

Answer 24

flywheel

Question 25

confines the expanding gases and forms the combustion chamber

Answer 25

cylinder

cylinder block

Question 26

houses the valves and forms a cover to the cylinder

Answer 26

cylinder head

Question 27

end of the cylinder between the head and the piston face where combustion occurs; sometimes synonymous with the term “cylinder”

Answer 27

combustion chamber

Question 28

guiding the oil along the piston as well as into crankcase to lubricate and cool down the components

Answer 28

oil scraper ring

Question 29

functions of engine oil

Answer 29

lubrication

cooling of the components

Question 30

Without engine oil or oil at low level may be

Answer 30

detrimental to the components

Question 31

open and closes the parts leading into and out of the combustion chamber

Answer 31

valves