Valve guide seals are LEAST-Likely to come in which of the following types?

A. Umbrella
B. Positive
C. O-ring
D. A-ring


Answer: D

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What is a standard output voltage of potential transformers?

a. 12V b. 24V c. 120V d. 240V

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Which type of coal below is described accurately?

a. Anthracite – less dense and very brittle b. Bituminous – black, shiny and dense c. Lignite – a dull black low-density coal d. Anthracite – black, shiny and dense

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Runout is used to control the relationship of radial features to a datum axis and features that are 90° to a datum axis.

Answer the following statement true (T) or false (F)

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The ash dump is an opening in the outer hearth into which the ashes can be dumped.

Answer the following statement true (T) or false (F)

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