power engineering practice exam 100% Correct Answers!!!

Two canadadian codes which have been adopted by all canadian jurisdictions and which are of importance to fifth class power engineering are the: - A NSCSA B51 And B52 The ASME code sections which are most pertinent to Fifth and Fourth class power engineer are sections: - A NSIV and VI what code contains guidelines for the care and operation of heating boilers? - A NSASME Section VI When a feedwater pump feeds two of more boilers from a common source, there must be a regulating valve - A NSEach feedwater line to each boiler what determines the classification of the certificate of completency required for the role of chief power engineer? - A NSKilowatt rating of the powerplant The provincial regulations require that all welding repairs on boilers must be: - A NSapproved by an authorized inspector A boiler in which steam is made at a present not greater than 103 Kilopascals, is properly termed a: - A NSheating plant In the power engineers regulations definitions, ______ means any part of the surface of a boiler that is in contact with fluid under pressure on one side and the products of combustion on the other side: - A NSHeating surface Heating plant means one or more boilers in which water that can be heated pressure and temperature of not more than: - A NS1,100 kPa and a temp of 121c The letters CRN stands for - A NSCanadian registration number Heat passes through the metal of heating surfaces by: - A NSconduction Six kg would be a measure of an object's: - A NSmass the term used to describe the fluid to gas change of state during the addition of heat is latent heat of: - A NSevapotarion the fahrenheit scale considers the boiling point of water to be - A NS212c The three meathods of heat transfer are: - A NSRadiation, conduction and convection Water extinguishes a fire by: - A NScooling the combustible material Water hammer can be prevented or minimized by installing___ chambers on a piping system. - A NS"end of line" air when working below ground level, the work presents the danger of : - A NSfalling objects Under WHMIS legislation all workers have the right to - A NSKnow what material they are working with of the following materials, which would be classified as a class B fire? - A NSPaper The correct safe working angle for a ladder is: - A NS1 to 4 overhead work presents the danger of ____ to others in the area. - A NSfalling objects The damaging factor of an electrical circuit is the: - A NScurrent It is important to know the location of the main shut off valve to the main water supple line feed to a building: - A NSIf it becomes necessary to shut the water supply to repair a major leak To reach high windows for cleaning it is appropriate to use: - A NSapproved ladders and scaffoldings when changing an expansion tank gage class, a worker should utilize a: - A NSface shield extinguishers used for Class C fire are identified by a circle containing the letter "C with a background colour of : - A NSBlue extinguishers used for class A fire are identified by a circle containing the letter "A with a background colour of : - A NSGreen Dry chemical fire extinguish the fire by: - A NSInhibiting the chain reaction of the fire extinguishers used for class D fire are identified by a circle containing the letter "D with a background colour of : - A NSYellow Adding heat to welded part immediately after to prevent cracking by slowing the cooling rate of the weld and head-affected zone is called: - A NSPostheating The most common hazards created by welding include all the following except: - A NShearing loss the device that is palced inside piping or vessels to facilitate obtaining a sound, nonporous weld at the root is called a - A NSbacking ring a welding process where fusion of melting is obtained by heating with an electric arc is called: - A NSArc welding The atmospheric vacuum breaker ___ when the condenser flow stops and water pressure is lost. - A NSOpens to admit air When warming up cold stream lines it is important that the: - A NSDrains are open and liquid draining while admitting stream which of the following is a one way valve - A NScheck valve gate valves are used for - A NSisolating grease is used in bearings under: - A NShigh loads a common metallic piping material used in low temperature application is - A NScopper what is used before a steam trap to prevent the entry of dirt of scale? - A NSstrainer fluid film lubrication, also called flood lubrication, occurs when the lubrication: - A NSwets the surfaces forming a microscopic film reducing friction and wear solid lubricants are suitable for use under conditions of: - A NSextreme temperatures instead of using stuffing boxes with packing to prevent leaking along the shafts of centrifugal pumps, many pumps use: - A NSmechanical seals anti-friction bearings consists of moving components which "roll" between two surfaces called: - A NSRaces what is the maximum pressure for a low-pressure steam heating boiler? - A NS103 kPa output of an immersion electric boiler is regulated by altering the: - A NSamount of current flowing through the elements all boilers are equipped with at least one blowoff or blowdown connection. the connection should be made: - A NSat the lowest point of the boiler in an electric boiler, the electrodes are located in the: - A NScentral generating chamber