How is a hypothesis different from an idea? Why is this important?
What will be an ideal response?
A hypothesis is a specific question, constructed and meant to be tested. It comes after some serious observation and analysis. An idea is a thought, which may or may not lead to a hypothesis. The distinction is important because science is in the business of testing hypotheses, which can then either be confirmed or contradicted by experiment. A successful theory in science is one that generates hypotheses that are repeatedly confirmed.
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Technician A says tire thumping may be caused by a heavy spot in the tire. Technician B says cupped tire tread may cause tire thumping. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
The recommended fluid to use in a CVT is usually ________.
A) Specific CVT fluid B) Dexron VI ATF C) Mercon V or Dexron VI D) Any of the above, depending on the specific unit
Answer the following statement(s) true (T) or false (F)
1. The products of combustion leaving high-efficiency devices contain enough heat to warm the vent system quickly. 2. The gas companies add an odorant called mercaptan as a safety feature and warning property. 3. The proper sizing of vented gas appliances is accomplished by using the National Fuel Gas Code, plumbing codes, and mechanical codes. 4. For fuel gas piping installations, many licensing jurisdictions have moved toward stablishing mechanical licenses separate from plumbing licenses. 5. The odor provided by mercaptan never dissipates.
The ISO 14230-4 protocol uses a single-wire bidirectional data line to communicate between the scan tool and the nodes.
Answer the following statement true (T) or false (F)