A stair with a total rise of 7'-7 and a total run of 9'-0, with ...

[frankwu]

A stair with a total rise of 7'-7 and a total run of 9'-0, with the stairwell header used as the last riser,
  requires _____ treads with a _____ unit run.
 
  a) 11 treads; 9 wide
  b) 11 treads; 9-1/2wide
  c) 12 treads; 9 wide
  d) 12 treads; 9-1/2 wide

Question 2

The first electrical checks of a system that is not operating generally involve:
 
  A) Replacing all system capacitors. B) Checking the power circuit to the equipment.
  C) Adding refrigerant. D) Ohming out key components.

[elizabethrperez]

Answer to Question 1

c

Answer to Question 2

B