Why should an outdoor oil storage tank be kept as full as ...

[kamilo84]

Why should an outdoor oil storage tank be kept as full as possible in cold weather?
 
  A) To increase the pressure inside the tank in cold weather
  B) To keep the oil viscosity from increasing in cold weather
  C) To prevent moisture from condensing on the inside of the oil storage tank
  D) To prevent a dangerous buildup of methane gas on top of the tank

Question 2

To reduce carbide precipitation in stainless steel welding:
 
  A) High welding speeds are used to reduce time at high temperature
  B) Titanium and columbium alloy electrodes are used
  C) Extra-low-carbon electrodes are used
  D) All of the above

[Kaytorgator]

Answer to Question 1

C

Answer to Question 2

D

[kamilo84]

TYSM

[Dominic]

Gracias!