Chapter 77 Fuel Pumps, Lines, and Filters Question with complete solution 2023

Chapter 77 Fuel Pumps, Lines, and Filters Question with complete solution 2023A fuel filter has been accidentally installed backwards. What is the most likely result? Select one: a. Nothing will be noticed b. Lower power at higher engine speeds and loads c. Fuel system pulsation noises may be heard d. Reduced fuel economy b. Lower power at higher engine speeds and loads A fuel pump is being replaced for the third time. Technician A says that the gasoline could be contaminated. Technician B says that wiring to the pump could be corroded. Which technician is correct? Select one: a. Technician A only b. Technician B only c. Both technicians A and B d. Neither technician A nor B c. Both technicians A and B A good fuel pump should supply how much fuel per minute? Select one: a. 0.5 pint b. 0.5 to 1 gallons c. 0.25 pint d. 1 pint b. 0.5 to 1 gallons Fuel lines are constructed from ________. Select one: a. Seamless steel tubing b. Nylon plastic c. Copper and/or aluminum tubing d. Both A and B d. Both A and B Fuel pump pressure is too low after engine start-up. Which of these could be the cause? Select one: a. Defective fuel pump rely b. Excessive system voltage c. Plugged fuel filter d. Restricted fuel return line c. Plugged fuel filter How much fuel should be supplied to the engine every 30 seconds? Select one: a. 2.5 Liters b. 2 Liters c. 2 Pints d. 1 Pint c. 2 Pints Most fuel filters are designed to remove particles larger than ________. Select one: a. 10 to 20 microns b. 1 micron c. 100 microns d. 70 microns a. 10 to 20 microns Technician A says that a fuel tank is either constructed of steel or polyethylene plastic. Technician B says that fuel tank filler tubes contain an anti-siphoning device. Who is right? Select one: a. Technician A only b. Technician B only c. Both technicians A and B d. Neither technician A nor B c. Both technicians A and B Technician A says that fuel filters are located in the fuel supply line. Technician B says that fuel filters are located in the fuel return line. Which technician is correct? Select one: a. Technician A only b. Technician B only c. Both technicians A and B d. Neither technician A nor B a. Technician A only Technician A says that fuel pump modules are spring-loaded so that they can be compressed to fit into the opening. Technician B says that they are spring-loaded to allow for expansion and contraction of plastic fuel tanks. Who is right? Select one: a. Technician A only b. Technician B only c. Both technicians A and B d. Neither technician A nor B b. Technician B only Technician A says that fuel tank accident and rollover protection devices include check valves and inertia switches. Technician B says that most fuel lines are made of ABS plastic. Who is right? Select one: a. Technician A only b. Technician B only c. Both technicians A and B d. Neither technician A nor B a. Technician A only Technician A says that the pump check valve should hold system pressure for at least five minutes after the pump is shut off. Technician B says that a defective check valve could cause long cranking time. Which technician is correct? Select one: a. Technician A only b. Technician B only c. Both technicians A and B d. Neither technician A nor B c. Both technicians A and B The amperage draw of an electric fuel pump is higher that specified. All of the following are possible causes EXCEPT ________. Select one: a. Corroded electrical connections at the pump motor b. Defective fuel pump c. Restriction in the fuel line d. Clogged fuel filter a. Corroded electrical connections at the pump motor The first fuel filter in the sock inside the fuel tank normally filters particles larger than ________. Select one: a. 10 to 20 microns b. 0.010 to 0.030 inches c. 0.001 to 0.003 inches d. 70 to 100 microns d. 70 to 100 microns What prevents the fuel pump inside the fuel tank from catching the gasoline on fire? Select one: a. No air is around the motor brushes b. Gasoline is hard to ignite in a closed space c. Electricity is not used to power the pump d. All of the above a. No air is around the motor brushes Where is the electric fuel pump is usually mounted? Select one: a. Trunk near the spare tire b. Just above the right rear tire well c. Fuel Tank d. In front of the starter motor