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    • Ch 4 – Engine Basics
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      • Ch 7 Powertrain Review Questions
    • Ch 9 – Cranking Starting Systems: Heavy Duty Truck Systems
    • Chapter 11 Diagnosis and Repair of Electronic Circuits
    • Ch 16 – Standard Transmission
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    • Ch 8 Engine Feedback Assembly
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    • Chapters 10-13
    • Ch 10 Engine Lubrication Systems: Review Questions
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    • Ch 12 – Engine Breathing
    • Ch 13 – Engine Retarders
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    • Ch 23 Truck Axles
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    • Ch 28 Truck Brake Systesm
    • Ch 29 – Hydraulic Brakes & Air over Hydraulics
    • Ch – 31
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Ch 12 – Engine Breathing

The tool of choice to accurately check the inlet restriction of a dry air filter would be a:
WATER FILLED MANOMETER

A typical maximum specified inlet restriction for an air filter on a turbocharged diesel would be:

25″ WATER


Which of the following types of filters has the highest filtering efficiencies?
DRY POSITIVE

Which of the following be performed first when checking an engine that produces black smoke under load?
AIR FILTER RESTRICTION TEST

Which of the following best describes the function of a C-EGR sytem on a diesel engine?

IT DILUTES INTAKE CHARGE WITH COOLED DEAD GAS


Which of the following best describes the function of a wastegate in a current turbo boosted diesel engine?

OPTIONS EXHAUST GAS TO BYPASS THE TURBINE


When series turbocharging is used on an engine, which of the following should be true?

TWIN TURBOS ARE ARRANGED IN SERIES


What is the critical flow area managed by a VG turbo using a variable nozzle operating principle?
TURBINE VOLUTE


To produce peak manifold boost from a VN-type turbocharger, which of the following should be true?
VANES ARE IN THE NEARLY CLOSED POSITION


The constant geometry turbocharger used with a high torque rise highway diesel engine is usally designed to produce optimum efficiency at which RPM?
PEAK TORQUE

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