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Exam (elaborations)

Exam (elaborations) NYC Auto Mechanic |Diesel Final Exam

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Exam of 14 pages for the course NYC Auto Mechanic at NYC Auto Mechanic (Diesel Final Exam)

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Technician A says that when using Plastiguage, Plastigauge that becomes wider indicates
a smaller oil clearance between a crankshaft and main bearing. Technician B says the
plastiqauge will become narrower when bearing oil clearances are smaller. Who is
correct?




Tech A4




Tech A says that a float sensor is used in a filter housing to measure the level of water to
determine when the filter should be drained. Tech B says that a probe in the bottom of a
fuel filter, which measures the difference between the conductivity of water and fuel, is
used to switch on the water-in-fuel warning lamp.

, tech A




increase turbine speed of VGT




narrowing the turbine nozzle ring




which of the following methods is best suited to treating diesel fuel that contains free
water and minimizing any potential damage to the fuel system?




Separate the water from the fuel through coalescence .




which of the following conditions is required to decrease the turbine speed of a VGT?




. opening or widening the turbine nozzle ring exit area




technician A says that the cam gear rotates two times faster than the crank gear.
Technician B says the cam gear rotates at half engine speed who is correct?

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