Podcast
Questions and Answers
Which unit is used to measure engine speed?
Which unit is used to measure engine speed?
- RPM (correct)
- Compression ratio
- Torque
- Horsepower
What is the formula for torque?
What is the formula for torque?
- Force plus distance
- Force minus distance
- Force times distance (correct)
- Force divided by distance
What is the relationship between torque and lever arm?
What is the relationship between torque and lever arm?
- The longer the lever arm, the greater the torque (correct)
- The shorter the lever arm, the greater the torque
- The lever arm has no impact on torque
- Torque is not affected by the lever arm
What is the most common unit of engine power in the U.S.?
What is the most common unit of engine power in the U.S.?
What is indicated horsepower?
What is indicated horsepower?
What is BMEP?
What is BMEP?
What happens to fuel consumption as BMEP is increased?
What happens to fuel consumption as BMEP is increased?
Which type of engine may have a better life expectancy than a naturally aspirated engine?
Which type of engine may have a better life expectancy than a naturally aspirated engine?
What is the purpose of a dynamometer?
What is the purpose of a dynamometer?
What is Brake Specific Fuel Consumption (BSFC)?
What is Brake Specific Fuel Consumption (BSFC)?
What is the purpose of the lug torque curve?
What is the purpose of the lug torque curve?
What happens when an engine operating at or near full load rpm is subjected to a load greater than full load?
What happens when an engine operating at or near full load rpm is subjected to a load greater than full load?
What type of loading is common in road vehicles?
What type of loading is common in road vehicles?
What is the potential torque increase for modern, medium-speed, turbocharged, aftercooled diesels under lug conditions?
What is the potential torque increase for modern, medium-speed, turbocharged, aftercooled diesels under lug conditions?
Which axis represents pressure on a Pressure Time (PT) curve?
Which axis represents pressure on a Pressure Time (PT) curve?
At what point does pressure reach its maximum on a PT curve?
At what point does pressure reach its maximum on a PT curve?
When does fuel injection typically begin on a PT curve?
When does fuel injection typically begin on a PT curve?
What is the net work produced by combustion represented by on a PT curve?
What is the net work produced by combustion represented by on a PT curve?
What is the term for the diameter of each cylinder in an engine?
What is the term for the diameter of each cylinder in an engine?
What is the term for the distance a piston travels up and down within a cylinder?
What is the term for the distance a piston travels up and down within a cylinder?
What is the term for the volume of air which the piston displaces as it moves one stroke?
What is the term for the volume of air which the piston displaces as it moves one stroke?
What is the term for the relationship between the minimum and maximum volumes between the piston crown and the cylinder head?
What is the term for the relationship between the minimum and maximum volumes between the piston crown and the cylinder head?
What is the term for the measurement of engine power?
What is the term for the measurement of engine power?
Which one of these statements is true about the bore and stroke in an engine?
Which one of these statements is true about the bore and stroke in an engine?
What determines the length of the stroke in an engine?
What determines the length of the stroke in an engine?
What connects the crankshaft to the piston in an engine?
What connects the crankshaft to the piston in an engine?
What is the stroke in an engine if the crank radius is 5 inches?
What is the stroke in an engine if the crank radius is 5 inches?
What is the formula for calculating bore area in an engine?
What is the formula for calculating bore area in an engine?
What is the formula for calculating displacement per cylinder in an engine?
What is the formula for calculating displacement per cylinder in an engine?
What is the compression ratio if the minimum volume in the cylinder is 5 cubic inches and the maximum volume is 25 cubic inches?
What is the compression ratio if the minimum volume in the cylinder is 5 cubic inches and the maximum volume is 25 cubic inches?
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