7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
POWER ENGINEERING 3B2 COMPLETE STUDY
GUIDE (CHAPTER 6) UPDATED EXAM \COMPLETE 96
QUESTIONS AND ACCURATE DETAILED
ANSWERS\GRADED A+ \LATEST UPDATE
An example of an internal A
combustion engine is:
a. A diesel engine
b. A steam engine
c. A steam turbine
d. A gas turbine
e. An air compressor
A two-stroke cycle engine C
has a power stroke every:
a. Two crank shaft revolutions
b. Four crank shaft revolutions
c. Crank shaft revolution
d. One half revolution
e. One half revolution
/ 1/35
,7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
The distinguishing B
characteristics of the
gasoline engine
are _______________ _.
a. vaporized gasoline mixed
with air is
drawn into the cylinder
during the intake stroke
b. ignition is achieved by
means of a spark plug
c. governing takes place by
throttling the air-fuel
mixture
d. the fuel is injected at high
pressure
e. four stroke cycle
The major differences of the A
diesel engine compared to
the gasoline engine are:
1) The charge drawn into the
cylinder is air only
2) The fuel is injected at
high pressure at the
beginning of the
compression stroke
3) Ignition is due to the high
temperature resulting from
the compression of the air
4) The fuel is injected at
high pressure at the end
of the compression
stroke
5) The fuel is injected
into the engine cylinder
at a high temperature
a. 1, 3, 4
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,7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
b. 2, 3, 4
c. 3, 4, 5
d. 1, 4, 5
e. 2, 4, 5
Scavenging is: B
a. The supplying of air for
combustion
b. The removal of exhaust
gases from the cylinder
c. Used in all diesel engines
d. Usually used in four-stroke
cycle engines
e. Recirculation of exhaust
gases to reduce emissions
A two-stroke cycle diesel B
engine:
a. Always has valves
b. Has difficulty removing
exhaust gas from the
cylinder
c. Are always of a uniflow type
of action
d. Always use scavenging air
e. Requires oil mixed
in the air for
lubrication
/ 3/35
, 7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
During the compression D
stroke of a diesel engine,
the temperature may be
as high as _.
a. 250°C
b. 350°C
c. 450°C
d. 650°C
e. 850°C
The oil scraper ring in a C
diesel engine is located:
a. Above the compression
rings
b. On the crank shaft
c. On the bottom portion of
the piston
d. Next to the camshaft
e. In between the two
compression rings
The pistons used on a E
diesel engine are
commonly made of
_____ or __________ _.
1) stainless steel
2) aluminum alloy
3) carbon steel
4) cast iron
a. 1, 3
b. 1, 4
c. 2, 3
d. 1, 2
e. 2, 4
/ 4/35
POWER ENGINEERING 3B2 COMPLETE STUDY
GUIDE (CHAPTER 6) UPDATED EXAM \COMPLETE 96
QUESTIONS AND ACCURATE DETAILED
ANSWERS\GRADED A+ \LATEST UPDATE
An example of an internal A
combustion engine is:
a. A diesel engine
b. A steam engine
c. A steam turbine
d. A gas turbine
e. An air compressor
A two-stroke cycle engine C
has a power stroke every:
a. Two crank shaft revolutions
b. Four crank shaft revolutions
c. Crank shaft revolution
d. One half revolution
e. One half revolution
/ 1/35
,7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
The distinguishing B
characteristics of the
gasoline engine
are _______________ _.
a. vaporized gasoline mixed
with air is
drawn into the cylinder
during the intake stroke
b. ignition is achieved by
means of a spark plug
c. governing takes place by
throttling the air-fuel
mixture
d. the fuel is injected at high
pressure
e. four stroke cycle
The major differences of the A
diesel engine compared to
the gasoline engine are:
1) The charge drawn into the
cylinder is air only
2) The fuel is injected at
high pressure at the
beginning of the
compression stroke
3) Ignition is due to the high
temperature resulting from
the compression of the air
4) The fuel is injected at
high pressure at the end
of the compression
stroke
5) The fuel is injected
into the engine cylinder
at a high temperature
a. 1, 3, 4
/ 2/35
,7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
b. 2, 3, 4
c. 3, 4, 5
d. 1, 4, 5
e. 2, 4, 5
Scavenging is: B
a. The supplying of air for
combustion
b. The removal of exhaust
gases from the cylinder
c. Used in all diesel engines
d. Usually used in four-stroke
cycle engines
e. Recirculation of exhaust
gases to reduce emissions
A two-stroke cycle diesel B
engine:
a. Always has valves
b. Has difficulty removing
exhaust gas from the
cylinder
c. Are always of a uniflow type
of action
d. Always use scavenging air
e. Requires oil mixed
in the air for
lubrication
/ 3/35
, 7/27/25, 11:17 AM Power Engineering 3B2 - Chapter 6
During the compression D
stroke of a diesel engine,
the temperature may be
as high as _.
a. 250°C
b. 350°C
c. 450°C
d. 650°C
e. 850°C
The oil scraper ring in a C
diesel engine is located:
a. Above the compression
rings
b. On the crank shaft
c. On the bottom portion of
the piston
d. Next to the camshaft
e. In between the two
compression rings
The pistons used on a E
diesel engine are
commonly made of
_____ or __________ _.
1) stainless steel
2) aluminum alloy
3) carbon steel
4) cast iron
a. 1, 3
b. 1, 4
c. 2, 3
d. 1, 2
e. 2, 4
/ 4/35
