Because of the shape of its jaws, which clamp can spread clamping pressure over a wider area than ...

Because of the shape of its jaws, which clamp can spread clamping pressure over a wider area than the others?
 
  a. A C-clamp
  b. A bar clamp
  c. A hand-screw clamp
  d. A spring clamp

 Q. 2

The EPA requires the repair of refrigerant leaks:
 
  A) Only in systems containing HFC refrigerant.
  B) Only in systems containing CFC refrigerant.
  C) Only in systems with a refrigerant charge greater than 50 pounds.
  D) For all types of leaks in all kinds of systems.

 Q. 3

The type of clamp shown in the figure above is a _____.
 
  a. bar clamp
  b. C-clamp
  c. pipe clamp
  d. spring clamp