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Assignment 1 - 14081_553
Assignment 1, Continued - 14081_555

Equipment Operator Basic - Beginning construction equipment operators manual
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1–11. If the exhaust valve opened in the middle  of  the  intake  stroke,  the piston  would  draw  burnt  gases  into the  combustion  chamber  with  a  fresh mixture of fuel and air. 1. True 2. False 1-12. What  part  of  the  camshaft  contacts the bottom of the lifter? 1. Cam  bearing 2. Cam  valve  tappet 3. Cam timing gear 4. Cam lobe Learning Objective: Recognize the  principles  and  components of fuel systems. 1-13. The function of the fuel system is to ensure a quantity of clean fuel is confined from the fuel intake of an engine? 1. True 2. False 1–14. What  type  of  harmful  pollution  is emitted in great amounts into the atmosphere  by  engines  that  use leaded  gasoline? 1. Hydrocarbons 2. Sodium  Aluminate 3. Hydrogen  sulfide 4. Carbon  dioxide 1-15. What  number  designator  is  used  to identify  the  ability  of  gasoline  to burn  evenly  and  resist  spontaneous combustion? 1. Cetane 2. Ratio 3. Octane 4. Fathom 1-16. As  engine  exhaust  passes  through the  catalytic  converter,  what chemical  compounds  are  produced  by the  oxidation  of  carbon  monoxide and  hydrocarbons? 1. Nitrates  and  ketones 2. Hydrogen  sulfide  and  carbon monoxide 3. Carbon  dioxide  and  water 4. Sulfur  dioxide  and  acetones 1-17. Catalytic  converters  are  designed to  convert  the  exhaust  gases  formed from  the  combustion  of  leaded gasoline. 1. True 2. False 1-18. Diesel fuels can retain dirt particles  in  suspension  longer than  gasoline  because  it  is  heavier and more viscous. 1. True 2. False 1-19. What supervisor approves the use of Jet-A1 and JP–5 as fuel? 1. Maintenance 2. Transportation 3. Project 4. Light shop 1–20. To  prevent  injector  pumps  and injector from seizing when jet fuel is used in diesel engines, what ingredient is added to the jet fuel to  improve  the  lubricating qualities? 1. Hydraulic  fluid 2. Engine oil 3. Power  steering  fluid 4. Drive line oil 1-21. The  fuel  filter  operates  by  passing fuel  through  a  porous  material  that blocks  particles  large  enough  to cause a problem in the fuel system. 1. True 2. False 2







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