____________________ systems use a spark igniter (direct spark ignition) or a silicon carbide igniter (hot surface ignition) to light the main gas burner directly.

Fill in the blank(s) with the appropriate word(s).


Direct ignition

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?If the reading on the vernier height gage is 3.34 mm, which vernier scale graduation most closely coincides with a main scale graduation?

A. ?17 B. ?12 C. ?4 D. 34

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A shortage of water in plant tissue is said to stress it

Indicate whether the statement is true or false.

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On most systems, the odometer and speedometer receive their input from the vehicle ____ sensor.

A. motion B. tire diameter C. motor D. speed

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Technician Asays parking brake cables may be coated with nylon or plastic for protection against corrosion. Technician B says most control cables and rear brakes are partially covered with a flexible metal conduit or housing. Who is correct?

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

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