Lines on drawings used to indicate an area that has been cut away ...

[bobbysung]

Lines on drawings used to indicate an area that has been cut away and shown in a section view are called
  _____.
 
  a. extension lines
  b. break lines
  c. phantom lines
  d. cutting plane lines

Question 2

A dimension line is drawn at right angles between _____.
 
  a. object lines
  b. extension lines
  c. center lines
  d. leader lines

[ApricotDream]

Answer to Question 1

d

Answer to Question 2

b

[bobbysung]

TYSM

[Joy Chen]

Gracias!