On the following drawing control the reflux flow.
What will be an ideal response?
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What is the usual V-Ref value in truck engine management systems?
A. less than 1 V-DC B. 5 V-DC C. 8 V-DC D. 12.6 V-DC
The exhaust stream from a running engine can be tested using an infrared exhaust analyzer.
Answer the following statement true (T) or false (F)
Technician A says the vacuum supply test involves inspecting the vacuum supply hose for kinks. Technician B says the test involves checking the level of vacuum supplied by the engine or vacuum pump. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Technician A says a disadvantage of drum brakes is that they require an adjusting mechanism to maintain the proper clearance between the shoe and drum. Technician B says a disadvantage of drum brakes is that they pull the car to one side during braking under certain conditions. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician