The likely cause of noise and potential internal damage to steam ...

[FButt]

The likely cause of noise and potential internal damage to steam piping and traps, especially during startup
  of a cold system, is _____.
 
  a. water hammer
  b. flash steam
  c. an oversized pressure regulator
  d. the pressure relief valve

Question 2

Undersized steam piping results in _____
 
  a. less noise
  b. reduced pressure drop
  c. greater pressure drop
  d. increased heat loss from piping surfaces

[recede]

Answer to Question 1

a

Answer to Question 2

c

[FButt]

Thanks for the timely response, appreciate it

[peter]

Great answer, keep it coming