process technology Exam questions and Answers

process technology Exam questions and Answers what is the purpose of a pump? to pump liquids to where they need to go what is the purpose of a compressor? to generate pressure 00:0301:29 what is the purpose of a filter? filters liquids and makes them clean what piece of equipment is used to generate steam used in the plant? boiler what is the purpose of a cooling tower? cool down water what is the purpose of a valve? used to open or close a flowing process what is the purpose of a check valve? to let liquids go through but not come back actuators used with automatic control valves electric, hydraulic and air what does it mean when the valve is fail-safe position? the signal is discontinued what is the purpose of a blind when inserted between 2 flanges? to block flow 2 major classification of pumps are centrifugal displacement and positive displacement which should never be operated with discharge valve closed? positive displacement what operating conditions may cause a pump to capitated? loss of nphs advantages of using a multistage pump they get job done quicker, because they have multiple pumps, not just one classification of positive displacement pumps are rotary and reciprocating advantages of a double acting piston pump works twice as fast to pump liquids on both sides of the piston what is the purpose of an intercooler in multistage compressor? cools down gasses before going in to the next stage difference between an intercooler and after cooler in a multistage compressor location in the compressor what is the purpose of a demister on a compressor system? swirls and removes moisture from gasses what is desiccant? gets rid of moisture from gasses what is the purpose of a steam turbine? turns steam energy