UL offers field evaluation services for medical devices and laboratory or test and measurement equipment that cannot be assessed in our facilities. Our experienced engineers assess the product in the field to applicable standards for regulatory acceptance.
Jet engines move the airplane forward with a great force that is produced by a tremendous thrust and causes the plane to fly very fast. All jet engines, which are also called gas turbines, work on the same principle. The engine sucks air in at the front with a fan. A compressor raises the pressure of the air. The compressor is made with many blades attached to a shaft. The blades spin at high speed and compress or squeeze the air.
What does the cylinder do on a car? The gas is shot into the cylinder where it is compressed, then ignited. This causes the cylinder to move up and down within the cylinder block. As the cylinders move they turnâ¦ the drive shaft which then provides power to the car. Making the world better, one answer at a time.