DETAILED QUESTIONS AND SOLVED
SOLUTIONS
◉What is the minimum shoulder taper rate for 60 mph road?
A. 20:1
B. 17:1
C. 15:1
D. 60:1. Answer: 20:1
◉What is the minimum buffer length for a 70-mph road?
A. 500'
B. 425'
C. 730'
D. 155'. Answer: 730'
◉How far away does a temporary traffic light need to be from a stop
bar on bidirectional road?
,A. 60'
B. 75'
C. 100'
D. 120'. Answer: 75'
◉Photo strobe lights LED warning light must be seen at least _____
away?
A. 100'
B. 200'
C. 1000'
D. 1 mile. Answer: 100'
◉Any truck and trailer combination of 10,000 pounds or more must
have conspicuity tape.
A. True
B. False. Answer: True
◉What is the minimum percentage length of horizontal strip retro
reflective sheeting placed on side length?
,A. 30%
B. 40%
C. 100%
D. 50%. Answer: 50%
◉How far behind raised curbs must equipment be parked?
A. 10 feet
B. 30 feet
C. 6 feet
D. 20 feet. Answer: 6 feet
◉When equipment is stored at night along roadway. It must be
delineated by drums spaced 5 feet apart. With Type A warning lights
on them.
A. True
B. False.. Answer: True
◉Road Closed signs on barricades must have what Type of warning
light on them in intersections?
, A. Type A
B. Type B
C. Type C
D. Type D. Answer: Type B
◉Grooved Pavement signs must be erected how far in advanced of
grooved pavement in an intersection?
A. 100 feet
B. 200 feet
C. 1000 feet
D. 250 feet. Answer: 250 feet
◉When covering conflicting signs. The contractor must cover with
an opaque cover that covers____.
A. 50% of the sign
B. 85% of the sign.
C. the entire message.
D. 75% of the sign. Answer: the entire message.