upStationary Grade 3 Engineering License| 283 questions| with complete solutions

how can you loose your license? correct answer: 1) drinking on the job 2) sleeping on the job 3) negligence 4) unsafe work 5) signing a falsified license application for someone 6) failing to renew your license annually what must you do if you change jobs? correct answer: notify city hall if you change jobs, address or retire why should you do rounds? correct answer: Find and correct problems to prevent breakdowns. keeping permanent records will make it easy to forecast most breakdowns because you will get to know equipment what is a steam boiler? correct answer: closed vessel, PARTIALLY FILLED WITH WATER, under pressure that transforms water to steam with the application of heat. what are the requirements of a good boiler? correct answer: 1) simple 2) designed to accommodate expansion and contraction 3) adequate steam and water space 4) efficient 5) responsive to demands 6) accessible for cleaning and repairs 7) safe Name and describe 3 types of heat transfer used in boiler operation correct answer: 1) RADIANT HEAT - transmitted from hot body to a cold body by means of direct radiation (heat from sun reaches us by radiation) 2) CONDUCTION - physical contact (coffee cup is heated by conduction when hot coffee touches the cup) 3) CONVECTION - carried along by a moving part such as air or water (your living room is heated by warm air from your furnace in another location what is a combustion chamber? correct answer: the area of the boiler where COMPLETE burning of the fuel occurs what is an internally fired boiler? ----- name 4 types correct answer: those in which the grate and combustion chamber are enclosed within the boiler shell. ----- 1) Scotch marine