TUNE YOUR LOOP: Questions to keep you sharp.

Tune Your Loop is a series of posts consisting of questions from ISA Training Courses.

1. In an AC circuit, harmonics can cause the _____ to overheat.

[ordered_list style=”lower-alpha”]
  1. sine wave
  2. phase line
  3. neutral conductor
  4. grounding conductor
  5. both B and C[/ordered_list]

2. _____ is an unwanted component of a signal or variable.

[ordered_list style=”lower-alpha”]
  1. Frequency
  2. Noise
  3. DC signal
  4. A coupler[/ordered_list]

3. Noise is random variations of voltage, current, or data.

[ordered_list style=”lower-alpha”]
  1. TRUE
  2. FALSE[/ordered_list]

4. Which of the following is one of the causes of noise in instrumentation?

[ordered_list style=”lower-alpha”]
  1. Shielding
  2. Frequency
  3. Calibration
  4. Ground loop[/ordered_list]

5. Shielding should always be grounded on both ends of the same cable.

[ordered_list style=”lower-alpha”]
  1. TRUE
  2. FALSE[/ordered_list]

Click Here to Reveal the Answer

1. c

2. b

3. a

4. d

5. b

From the ISA course Electrical Noise Effects on Instrumentation Control Equipment (TI21) pre-instructional survey.

 

 

 

Pin It on Pinterest

Shares