Heat Exchangers, 4A Power Engineering - Units 1 – 6 Questions and Answers Rated A+

Heat Exchangers, 4A Power Engineering - Units 1 – 6 Questions and Answers Rated A+ 1. Which of the following is not a definition of a power plant? a) Any one or more boilers in which steam or other vapour is generated at more than 103 kPa (15 psi). b) Any one or more boilers containing liquid and having a working pressure exceeding 1100 kPa (160 psi). c) Any one or more boilers containing liquid and having a working temperature exceeding 121 degrees Celsius (250 degrees Fahrenheit). d) Any one or more boilers in which steam or other vapour is generated at less than 57 kPa (8 psi). e) Any engine run from one or more boilers containing liquid and having a working pressure exceeding 1100 kPa (160 psi). D 1. Early government involvement in certification of power engineers became more important for the following reasons except: a) efficiency b) labour mobility c) safety d) pollution e) technological advancements D 1. Which of the following is not characteristic of increased automation in power plants? a) computerized control stations b) increased mechanization c) manual flame checking d) continuous monitoring of processes e) continuous monitoring of costs C 1. "Power plant" means a) any one or more boilers in which steam or other vapour is generated at more than 103 kPa (15 psi). b) any one or more boilers in which steam or other liquid is generated at more than 103 kPa (15 psi). c) any one or more boilers containing liquid and having a working pressure exceeding 1,200 kPa (160 psi), and a temperature exceeding 121 degrees C (250 degrees F). d) any one or more boilers containing liquid and having a working pressure exceeding 1,200 kPa (160 psi), and a temperature not exceeding 121 degrees C (250 degrees F). e) any one or more boilers containing liquid and having a working pressure not exceeding 1,100 kPa (160 psi), and a temperature exceeding 121 degrees C (250 degrees F). A 1. Power engineers are a) safety code officers in a power plant automatically. b) qualified to perform any welding jobs in a power plant. c) skilled workers who operate and maintain the equipment in a power plant. d) qualified to perform any electrical jobs in a power plant. e) qualified to make design changes in a power plant. C 1. In the early days, owners of power plants hired __________ workers, who started out doing manual labour and through acquired experience they were promoted to jobs with gradually increasing levels of skill. a) qualified b) highly educated c) trained d) unskilled e) college trained D 1. In order to produce greater efficiency, higher boiler pressures were used and this led to __________ due to employing of unqualified operators in a power plant. a) economic gains b) serious accidents c) higher efficiency d) safer working conditions e) less labour disputes B 1. Which of the following is not a common work schedule for power engineers? a) Year round employment b) Seasonal lay-offs c) Eight hour days d) Twelve hour days e) Rotating day and night shifts B 1. When oil mixes with water in the boiler the resultant effect is: a) serious foaming