Multitrack consoles use these rather than circular pots, ...

[Mr3Hunna]

Multitrack consoles use these rather than circular pots, ostensibly because the position of this is easier to perceive at a glance than the positions of several dials.
 
  a. vertical/slide faders
  b. ganged pots
  c. slide potentiometers
  d. all of these
  e. none of these

Question 2

In multitrack consoles the signal is routed through a series of circuits known as:
 
  a. faders
  b. networks
  c. busses
  d. modules
  e. all of these
  f. none of these

[akudia]

Answer to Question 1

.A

Answer to Question 2

.D