Before measurements can be taken using a temporary benchmark, you ...

[littleanan]

Before measurements can be taken using a temporary benchmark, you must calculate the _____.
 
  a. height above sea level
  b. backsight distance
  c. height of instrument
  d. target location

Question 2

To transfer elevations up a structure, first establish a temporary benchmark at the base, then locate a second
  temporary benchmark at the desired floor or level using a(n) _____.
 
  a. builder's level
  b. auto level
  c. laser level
  d. tape

[Shshxj]

Answer to Question 1

c

Answer to Question 2

d

[littleanan]

Gracias!

[miss.ashley]

TYSM