The type of electronic distance-measuring instrument that uses a transmitter/receiver at both ends of a
measurement line is a(n) _____.
a. infrared
b. microwave
c. ultrasonic
d. visible laser
Question 2
Horizontal and vertical angle readings on electronic transit levels and theodolites are shown on a(n) _____.
a. smartphone
b. analog meter
c. tablet computer
d. liquid crystal display