Which type of fire extinguisher medium is capable of killing an engine runaway while causing minimal damage and mess inside the engine?

A. Water
B. Carbon dioxide
C. Dry chemical
D. Soda-acid


Answer: B

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Technician A says that an EHI with a Piezo actuator is capable of breaking up a single injection cycle into up to 7 separate pulses. Technician B says that during a CR EHI multipulse injection cycle, the pressure rises through each successive pulse.  Who is correct? 

A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B

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Concrete is

A) an elastic-plastic material. B) an elastic material. C) a plastic material. D) none of the above.

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Technician A says that water will sink to the bottom of the fuel tank. Technician B says that water mixes with alcohol. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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The class 3 switch switches trunks between:

A) international gateway switches B) toll switches C) class 4 or 5 switches D) all of the above

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