At its most basic a control requires A) a voltage source, a ...

[gbarreiro]

At its most basic a control requires
 
  A) a voltage source, a path, and a load B) a thermostat and a motor
  C) a sensor, an actuator, and a linkage D) a transformer, a relay, and a motor

Question 2

A modulating control
 
  A) Is mainly an off and on type of control
  B) Can be used with any voltage by adjusting the modulator setting
  C) Can modulate mechanical signals to wireless frequencies for remote control
  D) Can position a damper or valve to positions other than full open or closed

[k.lashomb]

Answer to Question 1

C

Answer to Question 2

D

[gbarreiro]

Both answers were spot on, thank you once again

[k.lashomb]

Great! Please up vote