Q Process Technology Equipment Ch. 8 Test a. Carbon Ring b. Combustion chamber c. Condensing steam turbine d. Fixed blade e. Hydraulic turbine f. Governor g. gas turbine h. Mechanical energy j. k. Impulse turbine k. Radial bearing l. Rotating blades m. Multistage turbine n. Motive fluid o. Non-condensing steam turbine p. Nozzle q. Overspeed trip mechanism r. Impulse movement s. Reaction turbine t. Sentinel valve u. Shaft v. Single Stage Turbine w. Steam chest x. Steam Turbine y. Trip and throttle valve z. Wind turbine 1.__a spring-loaded, small relief valve that provides an audible warning (high-pitched whistle) when the turbine nears its maximum operating pressure conditions. 2.__-a device used to control the speed of a piece of equipment, such as a turbine. 3.__-a device that is operated or affected by a liquid (e.g.,a waterwheel). 4.__ a blade inside a turbine, attached to the casing, that determines the direction of the power fluid. motion that occurs when fluid is directed against turbine blades, causing the rotor to turn. 5.__a device that uses a reactive force of pressure or mass of the motive fluid to turn a rotor; this is an example of Newton’'s third law of motion. 6.__ a device that uses a reactive force of pressure or mass of the motive fluid to turn a rotor; this is an example of Newton’'s third law of motion. 7.__-a device that uses a directed flow of high velocity fluid against rotor blades to move the rotor; an example of Newton’'s second law of motion. 8.__-energy of motion that is used to perform work, p. 165. 9.__-a fluid whose pressure is used to drive a piece of equipment. 10.__ -a device that contains two or more stages (sets of blades), used as a driver for high-differential pressure, high-horsepower applications, and extreme rotational requirements. 11.__a blade inside a turbine, attached to the casing, that determines the direction of the power fluid. 12.__ device that converts wind energy into mechanical or electrical energy. 13.__-a turbine that exhausts steam at or above atmospheric pressure, allowing it to be further used in other equipment; also called a back pressure turbine. 14.__ -a seal component located around the shaft of the turbine that controls the leakage of motive fluid (typically steam) along the shaft or the entrance of air into the exhaust. 15.__a component used to drive the blades or rotor of the turbine; orients and converts the steam or motive fluid from pressure to velocity, p. 168. 16.__ -automatic safety device designed to remove power from a rotating machine if it reaches a preset trip speed. 17.__ - where steam enters the turbine. 18.__-a type of bearing designed to support and hold the rotor in place while offering minimum resistance to free rotation; prevents and offsets horizontal and vertical radial movement. Also called a journal bearing. 19.__-components attached to the shaft of the turbine. The motive fluid causes the turbine to spin by impinging on the rotating blades. 20.__-a rotating assembly of a turbine comprised of the shaft and the rotating blades, p. 168. 21.__a valve designed to constrict (throttle) the inlet steam to control the turbine speed and to shut down the turbine in the event of excess rotational speed or vibration. 22.__-a device that uses the combustion of natural gas to spin the turbine rotor. 23.__-a metal rotating component (spindle) that holds the blades and all rotating equipment in place. 24.__ -a device that contains a set of nozzles or stationary blades and moving blades, called a stage. Steam strainer-a mechanical device that removes impurities from the steam, 25.__-a chamber between the compressor and the turbine where the compressed air is mixed with fuel. The fuel is burned, increasing the temperature and pressure of the combustion gases. 26.__ a device that is driven by the pressure of high-velocity steam. 27.__Thrust (axial )bearing-a type of bearing designed to support and hold the rotor in place while offering minimum resistance to free rotation; prevents and offsets back- and-forth axial movement. 28.__a device in which exhaust steam is condensed in a surface condenser. The condensate is then recycled to the boiler. 29.__a housing component of a turbine that holds all moving parts (including the rotor, bearings, and seals) and is stationary. Knowledge 30. (True or False) Gas and steam turbines are activated by the expansion of fluid on a series of curved rotor vanes attached to a central shaft. 31. Steam turbines are driven by the pressure of high-velocity discharged at a high pressure and temperature against the turbine vanes. a. air b. water C. gas d. steam 32. (True or False) Newton's third law of motion states that for every action, there is a lesser but similar reaction. 33.. A(n)_________turbine is used as a driver for high differential pressure and high horsepower applications. a. condensing b. non condensing C. multistage d. impulse 34. A(n)_________is used to control the speed of the turbine as steam is channeled through the restrictive component called the nozzle. a. governor b. trip and throttle valve C. thrust bearing d. overspeed trip 35. Inside a gas turbine, hot gases are produced in the and are directed toward the turbine blades, causing the rotor to move. a. fuel line b. combustion chamber c. stage d. compressor 36.Turbines can be powered by which of the following? (Select all that apply.) a. Steam b. Gas c. Liquid d. Wind 37..Which of the following is true of a non condensing steam turbine? (Select all that apply.) a. It is also called a back-pressure turbine. b. The condensate is recycled to the boiler. c. It functions like a pressure-reducing valve. d. Steam exits the turbine at a lower pressure. 38. (True or False) Labyrinth seals are single-layer sealsused to allow small amounts of leakage inside the turbine. 39.______valves are safety valves used to warn process technicians about equipment overpressurization. 40. During what stage of a combustion gas turbine can heat recovery take place? a. Compression b. Heat addition c. Expansion d. Heat rejection 41. Turbine_________is caused by mineral deposits from steam. 42. What equipment hazards are associated with a failure to maintain sufficient inlet steam pressure? (Select all that apply.) a. Hunting b. Machine failure c. Relief valve popping d. Turbine shutdown PreviousNext