✓ TradeExamPro

TradeExamPro › Safety › Flagger and work zone traffic control

Signals practice questions

23 questions from the flagger and work zone traffic control practice test.

Signals practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

What this covers

Sample questions

What is the minimum width of a STOP/SLOW paddle?

  1. 12 inches
  2. 24 inches
  3. 30 inches
  4. 18 inches
Show the answer

D. 18 inches

The paddle must be at least 18 inches wide so drivers can read it from a distance. 24 inches is a common larger size, and is also the minimum size of a signal flag, but it is not the minimum for a paddle.

Reference: MUTCD Part 6, flagger hand-signaling devices (2009 Edition Section 6E.03)

What is the minimum height of the letters on a STOP/SLOW paddle?

  1. 4 inches
  2. 6 inches
  3. 8 inches
  4. 10 inches
Show the answer

B. 6 inches

Paddle letters must be at least 6 inches high. Smaller 4-inch letters would not be readable far enough back for a driver to react and stop.

Reference: MUTCD Part 6, flagger hand-signaling devices (2009 Edition Section 6E.03)

When should a flagger use a flag instead of a STOP/SLOW paddle?

  1. Only in emergency situations
  2. Whenever traffic is under 35 mph
  3. Whenever work is done at night
  4. Only on multi-lane highways
Show the answer

A. Only in emergency situations

Flags give drivers less clear direction than a paddle, so their use is limited to emergencies when a paddle is not available. Low speed alone does not justify using a flag.

Reference: MUTCD Part 6, flagger hand-signaling devices (2009 Edition Section 6E.03)

Other topics