What are the two main types of hydroponic systems used to grow plants?
What will be an ideal response?
Solution culture and substrate or medium culture.
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Which of the following are used to minimize standing hazards?
A) Anti-fatigue mats B) Foot rails C) Sit/stand chairs D) All of the above
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The ____ method of heating uses a high-frequency electrical current to establish a corresponding current on the surface of the part.
A. furnace B. induction C. dip D. resistance
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A lack of power from an engine equipped with gasoline direct injection could be due to ________
A) Noisy injectors B) Carbon on the intake valves C) Carbon on the injectors D) Both B and C
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The solid oxide fuel cell is used to ____.
A. power a traction motor B. replace the alternator C. produce carbon monoxide D. store hydrogen
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