Power engineering 4th - Study guides, Class notes & Summaries

PE 4th Part A ABSA Test Bank Questions With Complete Solutions Graded To Pass!! Introduction to Power Engineering 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 Cel...

PE 4th Part A ABSA Test Bank Questions With Complete Solutions Graded To Pass!! Introduction to Power Engineering 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 Cel...

Power Engineering 4th Class - A2 Questions and Answers Rated A+ Convert -6°C to °F. (-6°C × 9/5) + 32 = 21.2°F a. 30.4°F b. 28.5°F c. 21.2°F d. 18.6°F e. 16.7°F c Convert 6°F to °C. (6°F − 32) × 5/9 = -14.44°C a. 30.4°C b. 28.5°C c. -14.4°C d. 18.6°C e. -16.7°C c How much heat must be supplied to 200 kg of water at 20°C to make steam at 850 kPa abs and 87% dry? a. 2039.4 kJ b. 407 880 kJ c. 1774.28 kJ d. 424 627.98 kJ e. 484 507.6 kJ...

Power Engineering 4th Class - A12 Questions and Answers Rated A+ Natural draft is produced in a boiler furnace when: a. Hot flue gases condense b. Gases in the stack have more mass than an equal column of outside air c. Gases in the stack have less mass than an equal column of outside air d. Hot flue gases contract so that each cubic meter has more mass c If the power is cut off to an automatic gas valve, the valve will: a. Open widely b. De-pressurize the gas train c. Close im...

Power Engineering 4th Class - Unit A11 Questions and Answers 100% Pass (4-051-2.4) An early shell-type boiler had ___________ as its heating surface: Select one: a. Only the lower part of the shell b. The lower part of the shell and the rear plate or head c. The total shell side and one end plate or head d. Two passes along the shell or drum a (4-052-3.3) An advantage of a vertical tubeless firetube boiler is that it requires: Select one: a. Relatively small floor space b. No fu...

Power Engineering 4th Class – Electrical Questions and Answers Already Passed The atom is the smallest unit of a pure substance and is also known as a(n): a) Molecule b) Compound c) Electron d) Element e) Proton d) Element [[Remember to follow DreadedLlama on Instagram, Twitch, and Twitter ^^!]] A basic law of electricity is: a) Ohm's Law b) Charles Law c) Boyles Law d) Unlike charges attract, like charges repel e) Do not touch live wires d) Unlike charges attract, l...

Power engineering 4th class unit 11 chapter 4 with complete solutions Electric boilers a) require tall stacks for pollution dispersal b) tend not to be very compact c) require sootblowers when fuel is coal d) have energy conversion efficiencies close to 100% e) are not as safe as other boilers D Electric boilers: 1) Are low pressure boilers only 2) Do not need gauge glasses 3) Do not need a chimney 4) Are economical in power consumption 5) Are hot water boilers only ...

Power Engineering 4th Class - Unit A11 Questions and Answers

A typical natural gas flame should be: a. blue, with orange at the tip of the flame b. asymmetrical, and as close as possible to the heat transfer surfaces. c. bright yellow, with black tips. d. bright yellow, with orange tips. - Answer a Which of the following is NOT done when preparing a steam boiler feedwater system? a. Confirm that the boiler water level is within range. b. Verify that the boiler feedwater pumps are in service. c. Place the feedwater pre-treatment equipment i...

Power Engineering 4th Class - A12 Exam with Complete Solutions