IMSA Work-Zone Safety Examination with Questions and 100%
Correct Answers!!
Work zone sign in rural area Clear Zone (Distance from sign to edge of travelled way)?
6 to 12 ft
Work zone sign in a business, commercial, or residential areas with curb clear zone (Distance
from sign to edge of travelled way)?
2 ft minimum
Work zone sign in a business, commercial, or residential areas without curb clear zone (Distance
from sign to edge of travelled way)?
6 to 12 ft
What are the methods of mounting signs other than on posts?
Flag tree, barrier, portable, tripod
Distance between signs - urban (low speed)?
100 ft
Distance between signs - urban (high speed)?
350 ft
Distance between signs – rural?
500 ft
Distance between signs - expressway/freeway?
1000, 1500, 2640 (A, B, C)
Flashing arrow modes?
Flashing arrow, sequential arrow, sequential chevron, flashing double arrow, flashing caution,
alternating diamond caution
What does a flashing arrow on an arrow board mean?
Merge right
What does a sequential arrow on an arrow board mean?
Merge right
, What does a flashing double arrow on an arrow board mean?
Merge right or left
What does a flashing caution mean?
Flashing caution
Arrow board type A minimum size?
48x24 inches
Arrow board type A minimum legibility distance?
1/2 mile
Arrow board type A minimum number of elements?
12
Arrow board type B minimum size?
60 x 30 inches
Arrow board type B minimum legibility distance?
3/4 mile
Arrow board type B the minimum number of elements?
13
Arrow board type C minimum size?
96 x 48 inches
Arrow board type C the minimum legibility distance?
1 mile
Arrow board type c the minimum number of elements?
15
How many reflectorized bands (white) are on a drum?
2
What direction should a reflector on a drum face?
Facing traffic
The minimum height and diameter of a traffic drum?
Correct Answers!!
Work zone sign in rural area Clear Zone (Distance from sign to edge of travelled way)?
6 to 12 ft
Work zone sign in a business, commercial, or residential areas with curb clear zone (Distance
from sign to edge of travelled way)?
2 ft minimum
Work zone sign in a business, commercial, or residential areas without curb clear zone (Distance
from sign to edge of travelled way)?
6 to 12 ft
What are the methods of mounting signs other than on posts?
Flag tree, barrier, portable, tripod
Distance between signs - urban (low speed)?
100 ft
Distance between signs - urban (high speed)?
350 ft
Distance between signs – rural?
500 ft
Distance between signs - expressway/freeway?
1000, 1500, 2640 (A, B, C)
Flashing arrow modes?
Flashing arrow, sequential arrow, sequential chevron, flashing double arrow, flashing caution,
alternating diamond caution
What does a flashing arrow on an arrow board mean?
Merge right
What does a sequential arrow on an arrow board mean?
Merge right
, What does a flashing double arrow on an arrow board mean?
Merge right or left
What does a flashing caution mean?
Flashing caution
Arrow board type A minimum size?
48x24 inches
Arrow board type A minimum legibility distance?
1/2 mile
Arrow board type A minimum number of elements?
12
Arrow board type B minimum size?
60 x 30 inches
Arrow board type B minimum legibility distance?
3/4 mile
Arrow board type B the minimum number of elements?
13
Arrow board type C minimum size?
96 x 48 inches
Arrow board type C the minimum legibility distance?
1 mile
Arrow board type c the minimum number of elements?
15
How many reflectorized bands (white) are on a drum?
2
What direction should a reflector on a drum face?
Facing traffic
The minimum height and diameter of a traffic drum?
