Aptiv ETL Tester Interview Questions and Answers

Diesel engine works by compressing air in the cylinder and injecting fuel at the right time to ignite the mixture.

• Air is compressed in the cylinder by the piston

• Fuel is injected into the cylinder at the right time

• The heat generated by the compressed air ignites the fuel

• The expanding gases push the piston down, creating power

• Diesel engines are more efficient than gasoline engines

CC stands for carbon copy, a term used in email communication to indicate additional recipients of a message.

• CC is used to send a copy of an email to someone other than the primary recipient

• CC recipients are visible to all other recipients of the email

• CC is often used for informational purposes or to keep others in the loop

• CC can also be used to show transparency in communication

Compression ratio is the ratio of the volume of gas in a cylinder when the piston is at the bottom of its stroke to the volume of gas when the piston is at the top of its stroke.

• It is a measure of how much the engine compresses the air/fuel mixture before ignition.

• Higher compression ratios can lead to better fuel efficiency and more power.

• Compression ratio is calculated by dividing the volume of the cylinder at bottom

Swept volume is the volume of space swept by a piston in an engine cylinder during one stroke.

• It is the volume of the combustion chamber when the piston is at the bottom of its stroke subtracted from the volume of the combustion chamber when the piston is at the top of its stroke.

• It is used to calculate the engine displacement.

• For example, a four-cylinder engine with a 500cc swept volume has a total displacement of 2,0...read more