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

Power Engineering 4th Class - A12 Questions and Answers 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 - ANS 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 immed...

Power Engineering 4th Class - A11 all questions and verified answers The purpose of a superheater is to: a. Control the pressure of the steam b. Increase the temperature of the steam c. Increase the steam output d. Produce high pressure steam - ANS b A membrane water wall: a. Has waterproof membranes lining the tubes b. Has firebrick in front of the tubes c. Has metal plates welded between the tubes d. Consists of a metal sheeting in front of the tubes - ANS c A cyclone ...

Power Engineering 4th Class - B3 Updated questions and answers The type of firing rate control frequently used on small capacity packaged boilers is: a. a modulating control b. a high fuel pressure cut-off c. a constant pressure control d. an on/off control - ANS d A feedwater pipe, where connected to a power boiler, must have: a. A quick and slow opening stop valve b. A stop valve only c. A check valve between the stop valve and the boiler d. A check valve, with a stop valve ...

Power Engineering 4th Class - B4 Verified questions and correct 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. - ANS 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 ...

Power Engineering 4th, Ch 30 Personal Protective Equipment Questions with Verified Solutions 1. Relative to personal protective equipment, it is the employer's responsibility to: a. Supply, ensure usage, and maintain b. Wear, care for, and maintain c. Supply and ensure usage d. Supply only e. Supply, ensure usage, care for, and maintain. c 2. The type of breathing apparatus that incorporates a 5 minute cylinder to allow the user to escape a contaminated area is the: a. Supplied...

Power Engineering 4th class Chapter 97 STEAM HEATING SYSTEMS with 100- correct answers.

Power Engineering 4th Class - A4 Exam with Complete Solutions

A _________ is a minimum grade or quality, having widespread recognition and implementation, developed by industry - Answer Standard This document is the mechanical refrigeration code: a. ASME B51 b. ASME B52 c. CSA B51 d. CSA B52 - Answer CSA B52 This part of the ASME Section IV covers the fundamentals of all heating boiler designs APart HC b. Part HF c. Part HLW d. Part G - Answer Part G This ASME code deals with recommended rules for the care and operation of heat...

Instructor test bank 2023 verified and updated. By TECHGRADES. 1-Advanced Engineering Electromagnetics by Constantine Balanis 2-Antenna Theory and Design, 2ed+1ed, by Warren Stutzman 3-Circuit Design with VHDL by Volnei A. Pedroni 4-Convex Optimization by Stephen Boyd and Lieven Vandenberghe 5-Digital signal processing 2+1ed, by Sanjit K. Mitra 6-Partial differential equations, lecture notes by Neta 7-Fundamental Methods of Mathematical Economics 4ed, by Alpha C. Chiang 8-C++ How ...

Power Engineering 4th Class unit B 3 chapter 1 Questions and answers well explained What is the minimum number of safety valves required on a boiler that has a heating surface of 42 m2? a. None b. One c. Two d. Three e. Four - ANS B The safety valves on a boiler and are set to open at 1380 kPa. What is the maximum permissible pressure rise in the boiler if it is fired at full capacity with the steam outlet valve closed? a. 0 kPa b. 37.5 kPa c. 41.4 kPa d. 69 kPa e. 82.8 kPa - A...