Why are cooling systems pressurized?

What will be an ideal response?


Cooling systems are pressurized for two reasons:

- The efficiency of the water pump is increased.
- Putting pressure on the coolant raises the boiling point of the liquid in the cooling system.

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Sprinkler irrigation involves building a series of large and small ditches to transport water

Indicate whether the statement is true or false

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A rack and pinion inner tie rod end is often secured by which of these methods?

A) Riveted or pinned B) Staked C) Either A or B D) Neither A nor B

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Electrical components can generally be divided into two groups:

A) Pilot duty and line duty. B) Electro-mechanical and electronic. C) Controls and loads. D) Electrical and mechanical.

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If a diesel engine is run without a thermostat, which of the following tailpipe emissions would be likely to increase?

A. HC B. NOx C. sulfur dioxide D. nitrogen dioxide

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