4A Practice Test Correct Questions & Answers(Graded A+)

B An operator should check that a boiler safety valve will open at its set pressure by a) sending for the inspector to bring his or her test gauge b) increasing the boiler pressure until the valve opens and noting the pressure on the pressure gauge when the valve opened c) putting a piece of pipe over the lifting lever and lifting the valve off its seat when the seat pressure is reached d) connecting the boiler to an air compressor during shut down and raising the pressure in the boiler until the set pressure is reached e) listening to the alarms of the set pressures - ANSWER b) increasing the boiler pressure until the valve opens and noting the pressure on the pressure gauge when the valve opened D 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). - ANSWER d) Any one or more boilers in which steam or other vapour is generated at less than 57 kPa (8 psi). D 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 - ANSWER d) pollution C Which of the following is not characteristic of increased automation in power plants? a) computerised control stations b) increased mechanisation c) manual flame checking d) continuous monitoring of processes e) continuous monitoring of costs - ANSWER c) manual flame checking A "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). - ANSWER a) any one or more boilers in which steam or other vapour is generated at more than 103 kPa (15 psi). C 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. - ANSWER c) skilled workers who operate and maintain the equipment in a power plant.