Fdny A35 Exam Questions and Answers 100% Pass 2024

What are air compressors used to power? Industrial equipment and construction tools What pressure compressor require a certificate holder to operate? 100+ psi What are two examples of tools air compressors power? Pneumatic wrenches and air lifts in automobile repair shops What are the 4 types of air compressors? Reciprocating,centrifugal, rotary, and solar How can air compressors be powered? Electric motors, internal combustion engines, and steam turbines What can be done to prevent flammable gasses from entering air compressors? Position the compressor 5 feet above ground What does the compression chamber consist of? A piston inside of a cylinder When the piston moves downward, what happens to the intake valve? It automatically opens and air is drawn into the cylinder When air is compressed and the intake valve is close, which direction is the piston moving? It is moving upward When pressure reaches a certain level, what happens with the discharge valve? It opens to allow air into the receiver What is a single stage compressor? A compressor that pumps air into the receiver after one step of compression from one or more cylinders and pistons. What is a multistage compressor? A compressor that discharges air between multiple cylinders before finally reaching the receiver, reaching a new level of compression after passing each cylinder What happens to air when it is compressed? It becomes heated What cools the air after it's been compressed? An intercooler What is the purpose of an unloading valve? To allow air to escape when there is strain on the motor(usually during startup). Automatic in most cases manual on older compressors. What ensures compressed air does not flow out when the unloading valve is activated? The check valve