Explain the prefixes M, k, m, and , and provide an example of how ...

[londonang]

Explain the prefixes M, k, m, and , and provide an example of how each is used.
 
  What will be an ideal response?

Question 2

Which piping arrangement allows every unit to receive the same temperature water?
 
  A) Series loop, single circuit B) One-pipe venturi system, single circuit
  C) One-pipe venturi unit, double circuit D) Two-pipe system, direct return

[kjo;oj]

Answer to Question 1

M = 1 million k = 1 thousand m = one thousandth

Answer to Question 2

D