The auxiliary engines on the ocean-going tug to which you are assigned are fitted with Roots-blowers as shown in the illustration. What statement is t...

Question

The auxiliary engines on the ocean-going tug to which you are assigned are fitted with Roots-blowers as shown in the illustration. What statement is true concerning the timing gears as shown in figure "A"?

Accepted Answer

The timing gears are helically cut and ensure that the blower rotor lobes are properly spaced apart with a close tolerance.

Engine: Motor Plants and Auxiliary Boilers

The auxiliary engines on the ocean-going tug to which you are assigned are fitted with Roots-blowers as shown in the illustration. What statement is true concerning the timing gears as shown in figure "A"?

Appears on the 2026 sample exam for

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