The steps involved in replacing spark plugs include ________

A) Use compressed air to clean around the base of the plug
B) Keep the spark plugs arranged so that they can be compared in case of a fault with one cylinder
C) Allow the engine to cool
D) All of the above


D

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As plant material decays, it is converted into nitrogen-rich ____________________

Fill in the blank(s) with correct word

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Technician A says that some DC motors use brushes. Technician B says that an AC synchronous motor uses a permanent magnet rotor. Which technician is correct?

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

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_______ robots blend linear Cartesian motion with articulated rotation to create a new motion type that is often used in the electronics field.

A. Cartesian B. Cylindrical C. SCARA D. Polar

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It is necessary to get a 100-gallon tank in a space 5 feet long. What size diameter is needed? Express the answer to the nearest tenth inch.

A. 22.1 B. 22.2 C. 22.3 D. 22.4

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