Can mastic be used on duct board plenums?

What will be an ideal response?


Yes. Mastic and fiber tape must be used when duct board is used as a plenum.

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Technician A says the some OEMs permit on-engine change-outs of EUI solenoids where troubleshooting has determined one to be defective. Technician B says that most OEMs require EUI calibration codes to be reprogrammed each time an injector is changed out. 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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Rubber liners last longer than PVC liners

Indicate whether the statement is true or false

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Large water pump pliers can be used:

A) For any bolt and nut it will extend to fit B) For unfinished packing nuts, pipe and pipe fittings C) To loosen arbor nuts D) All of the above

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Sketch the section-line patterns for 10 different materials

What will be an ideal response?

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