Power engineering - Study guides, Class notes & Summaries

Power Engineering 4A Exam Questions with correct Answers

4th Class Power Engineering Part A Exam Questions and Answers

Power Engineering Part A Unit 11 Rated A+ Air Heater Transfer heat from the flue gas, or from steam, to the combustion air entering the boiler, to improve combustion efficiency Blowoff Valve Manually operated valve connected to a boiler for the intermittent discharge of boiler sediment, for lowering a boilers water level, or for draining a boiler Blowoff Vessel Vessel that intercepts, cools, and depressurizes boiler blowoff water, on order to protect municipal sewer systems Boi...

Power Engineering 4A Questions and Answers Already Passed The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is: Select one: a. Two hours b. Three hours c. One hour d. 30 minutes C The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is: Select one: a. Two hours b. Three hours c. One hour d. 30 minutes C When welding thick materials, proper weld groove selec...

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...

This is the distance between the surface of the liquid level of a supply source located below a pump and the center line of the pump: Select one: a. total static head b. static discharge head c. static suction head d. static suction lift - d The fact that different shaped containers, filled with liquid of the same height, have the same applied force by the liquid on the base of each container, is referred to as: Select one: a. Peterʼs Paradox b. Pascalʼs Paradox c. Pandaʼs Parad...

Power Engineering ABSA 4B Questions with Complete Solutions.

POWER ENGINEERING CLASS 4 PART B EXAM

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 - 4A Instrumentation Practice Questions with Verified Answers Common indicators necessary for proper process operation may include: a. low water cut-offs, flame scanners and safety values b. pressure, value position, and conductivity measurement devices c. interlocks and permissives d. programmable logic controls e. pneumatic, hydraulic, and electrical switches b. pressure, value position, and conductivity measurement devices A sensing element receives its sig...