When a regulator has two stages, the first regulator stage is ...

[dejastew]

When a regulator has two stages, the first regulator stage is usually _____.
 
  a. adjustable within a small range
  b. adjustable within a wide range
  c. preset to an intermediate pressure
  d. preset to 0 psig

Question 2

Why should a universal torch wrench be used to install and remove oxyacetylene fittings?
 
  a. It is supplied with the equipment.
  b. Oxyacetylene fittings are special non-standard sizes.
  c. Using standard wrenches can overtighten the fittings.
  d. There is no specific reason, it is just industry policy.

[Swizqar]

Answer to Question 1

c

Answer to Question 2

c

[dejastew]

Excellent

[shewald78]

Gracias!