Engine performance Exam 1
Questions & Answers (Grade A+)
All overhead valve engines ________. -
correct answer ✅Have the overhead valves in the head
An SOHC V8 engine has how many camshafts? -
correct answer ✅Two
Torque is expressed in units of ________. -
correct answer ✅pound-feet
Horsepower is expressed in units of ________. -
correct answer ✅foots per pound
A normally aspirated automobile engine loses about ________
power per 1000 feet of altitude. -
correct answer ✅3%
One cylinder of an automotive four-stroke cycle engine completes a
cycle every ________. -
correct answer ✅720 degrees
,Engine performance Exam 1
Questions & Answers (Grade A+)
How many rotations of the crankshaft are required to complete
each stroke of a four-stroke cycle engine? -
correct answer ✅one-half
A rotating force is called ________. -
correct answer ✅Torque
Technician A says that the crankshaft determines the stroke of an
engine. Technician B says that the length of the connecting rod
determines the stroke of an engine. Which technician is correct? -
correct answer ✅Tech A crankshaft
Which component is NOT needed in a typical overhead cam
engine? -
correct answer ✅pushrod
Technician A says that a typical DOHC V6 engine uses two
camshafts. Technician B says that overhead cam engines generally
can run at higher rotational speeds than overhead valve engines.
Which technician is correct? -
correct answer ✅Tech B overhead cam engines
, Engine performance Exam 1
Questions & Answers (Grade A+)
Which of the following is the most correct statement about the
direction of engine rotation? -
correct answer ✅Most engines rotate clockwise as viewed from
the front of the engine.
The following statements are all correct EXCEPT ________ -
correct answer ✅Torque always results in movement
Technician A says that changing connecting rod length changes
engine stroke. Technician B says that changing connecting rod
length changes the position of the piston in the cylinder. Which
technician is correct? -
correct answer ✅Tech B Changes position on the piston
All of these are correct EXCEPT ________ -
correct answer ✅Engines produce higher horsepower at higher
altitude.
The following statements are all correct EXCEPT ________ -
correct answer ✅Torque always results in movement.
Questions & Answers (Grade A+)
All overhead valve engines ________. -
correct answer ✅Have the overhead valves in the head
An SOHC V8 engine has how many camshafts? -
correct answer ✅Two
Torque is expressed in units of ________. -
correct answer ✅pound-feet
Horsepower is expressed in units of ________. -
correct answer ✅foots per pound
A normally aspirated automobile engine loses about ________
power per 1000 feet of altitude. -
correct answer ✅3%
One cylinder of an automotive four-stroke cycle engine completes a
cycle every ________. -
correct answer ✅720 degrees
,Engine performance Exam 1
Questions & Answers (Grade A+)
How many rotations of the crankshaft are required to complete
each stroke of a four-stroke cycle engine? -
correct answer ✅one-half
A rotating force is called ________. -
correct answer ✅Torque
Technician A says that the crankshaft determines the stroke of an
engine. Technician B says that the length of the connecting rod
determines the stroke of an engine. Which technician is correct? -
correct answer ✅Tech A crankshaft
Which component is NOT needed in a typical overhead cam
engine? -
correct answer ✅pushrod
Technician A says that a typical DOHC V6 engine uses two
camshafts. Technician B says that overhead cam engines generally
can run at higher rotational speeds than overhead valve engines.
Which technician is correct? -
correct answer ✅Tech B overhead cam engines
, Engine performance Exam 1
Questions & Answers (Grade A+)
Which of the following is the most correct statement about the
direction of engine rotation? -
correct answer ✅Most engines rotate clockwise as viewed from
the front of the engine.
The following statements are all correct EXCEPT ________ -
correct answer ✅Torque always results in movement
Technician A says that changing connecting rod length changes
engine stroke. Technician B says that changing connecting rod
length changes the position of the piston in the cylinder. Which
technician is correct? -
correct answer ✅Tech B Changes position on the piston
All of these are correct EXCEPT ________ -
correct answer ✅Engines produce higher horsepower at higher
altitude.
The following statements are all correct EXCEPT ________ -
correct answer ✅Torque always results in movement.
