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IMSA WORK ZONE SAFETY EXAM NEWEST EXAM
2025 | ALL QUESTIONS AND CORRECT ANSWERS |
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In rural areas, post mounted warning signs should be placed ______ to ______ feet from the edge of the roadway to the leading edge of the sign. - --------CORRECT ANSWER-----------------6 to 12 In business, commercial, or residential areas, signs can be placed a minimum of _____ feet from the edge of the roadway to the leading edge of the sign ---------CORRECT ANSWER-----------------2 feet The absolute minimum height for ground mounted signs in business, commercial or residential areas is _____ ---------CORRECT ANSWER------- ----------7 feet When mounting a secondary sign below a post-mounted roadside sign, the secondary sign may be mounted _______ less than the primary roadside sign with a minimum height of six feet. ---------CORRECT ANSWER---------- -------1 foot The general rule for sign spacing is _____ to ____ times the speed for business, commercial, or residential areas and ____ to ____ times the speed for rural areas ---------CORRECT ANSWER-----------------4 to 8 8 to 12
Suggested advance warning sign spacing for different types of roadways can be found in the _____________ ---------CORRECT ANSWER------------- ----MUTCD The minimum height for traffic comes in low-speed, low volume areas is _____ ---------CORRECT ANSWER-----------------18 inches The minimum height for traffic cones in a high-speed, high volume areas is _____ ---------CORRECT ANSWER-----------------28 inches For nighttime operations, traffic cones shall be a minimum of ______ in height and have ______ ---------CORRECT ANSWER----------------- 28 inches and 2 retro reflective bands _________ Are more stable than cones, but harder to transport --------- CORRECT ANSWER-----------------Drum barrels To prevent barricades from being blown over _______ may be used to hold them in place ---------CORRECT ANSWER-----------------Sand bags The standard colors for barricades are _____ and _____ ---------CORRECT ANSWER-----------------Orange and white Type I and II barricades should be a minimum of ______ in height and have a minimum rail length of ____ ---------CORRECT ANSWER-------------- ---36in
Type C- 1 mile Signs should always be ____ or _____ when the message doesn't apply --- ------CORRECT ANSWER-----------------Covered or removed All warning signs used at night shall be fully _____ or ______ --------- CORRECT ANSWER-----------------Illuminated or reflective Describe the applications of the four types of warning lights when used in work areas. Type A Low intensity flashing yellow lights Type B High intensity flashing yellow lights Type C steady burning yellow lights Type D 360 degree steady burning yellow lights ---------CORRECT ANSWER-----------------Type A night time only Type B 24hr warning areas Type C outline the edge of open roadway through work area Type D used at night to delineate the edge of the roadway (on curves only use on outside edge The work zone starts at the first advance warning sign; therefore where should the flagger stand when directing traffic in a TTC (work) zone? --------
- CORRECT ANSWER-----------------On the shoulder adjacent to traffic being controlled How many orange and black TTC signs should there be in each direction on a 2-way, 2-lane rural roadway? ---------CORRECT ANSWER----------------
- Three
On a 2-lane, 2-way rural roadway what should TTC signage spacing be? --- ------CORRECT ANSWER-----------------500 ft How many feet apart should the advanced warning signs be on a high speed urban roadway? ---------CORRECT ANSWER-----------------350 ft Referring to: "How many feet apart should the advanced warning signs be on a high speed urban roadway?" For additional emphasis signs way be posted where? ---------CORRECT ANSWER-----------------On the left hand side of the highway Taper length refers to: ---------CORRECT ANSWER-----------------The distance required to safely route traffic from one lane to another The taper length is based upon what two things? ---------CORRECT ANSWER-----------------The width of the lane closed and the speed of the roadway In a taper, the maximum distance between channeling devices should be: - --------CORRECT ANSWER-----------------Equal in feet to the speed limit On a barricade, if the stripes start at the upper right and angle down to the lower left side: traffic should... ---------CORRECT ANSWER----------------- Pass to the left
A TTC plan is a: ---------CORRECT ANSWER-----------------Temporary Traffic Control plan A TTC plan should include? ---------CORRECT ANSWER----------------- Typical application drawings The MUTCD states that individuals responsible for the implementation of TTC measures should: ---------CORRECT ANSWER-----------------Be trained/and or certified TTC principes and procedures include? ---------CORRECT ANSWER--------- --------(All of the above) Traffic safety, movement, and guidance TTC zone inspection TTC zone maintenance The based on the fundamental principles of TTC work zones should be inspected when? ---------CORRECT ANSWER-----------------During both daytime and night time True or False: the MUTCD indicates that a "standard" is a mandatory practice ---------CORRECT ANSWER-----------------True True or False: The MUTCD indicates that a "guidance" is a recommended practice ---------CORRECT ANSWER-----------------True
True or False: The MUTCD indicates that an "option" is a permissive condition ---------CORRECT ANSWER-----------------True A tort in legal terminology is a ______________ other than a breach of contract for which a court will provide a remedy ✨✨ ---------CORRECT ANSWER-----------------Civil wrong Liability for a tort means the __________ to pay money damages to the person injured or damaged ---------CORRECT ANSWER-----------------Legal obligation Which of the following can negligence be defined as: The failure to do something that a "reasonable person" would ordinarily do The doing of something that a "reasonable person" would ordinarily not do The failure to use ordinary care ---------CORRECT ANSWER----------------- All of the above The obligation for a person to conform to a certain standard of conduct is the definition of: ---------CORRECT ANSWER-----------------Duty The MUTCD is an example of: ---------CORRECT ANSWER----------------- Accepted standards and practices
Traffic signal power has been lost. The dispatcher has notified the traffic engineering department. In the interim, the police department has opened emergency stop signs banded to the signal piles. This is an example of: Proper response Reasonable and prudent action Notice ---------CORRECT ANSWER-----------------All of the above Flashing or sequencial arrow boards shall be capable of a minimum of ______ percent dimming for night operations. ---------CORRECT ANSWER- ----------------50% The five requirements of a traffic control device are: ---------CORRECT ANSWER-----------------1. Fulfill a need
- Command attention
- Convey a clear and simple meaning
- Command respect from road users
- Be located to give adequate time for proper response What are the three classes of traffic signs ---------CORRECT ANSWER------ -----------1. Regulatory
- Warning
- Guide Before regulatory signs are removed or superseded by a temporary regulatory sign, _________ must be obtained from the governing jurisdiction. ---------CORRECT ANSWER-----------------Authorization
What are the colors assigned exclusively to TTC warning and guide signs? ---------CORRECT ANSWER-----------------Orange and black What colors are used on a ROAD CLOSED sign ---------CORRECT ANSWER-----------------Black and white What is the difference between an orange detour sign with black arrow vs black detour sign with orange arrow ---------CORRECT ANSWER-------------- ---Orange with black arrow used for un-numbered routes. Black with orange arrow used under road closed signs. Guide sign saying "Road work next X miles" should be used for any construction area longer than _______ miles. ---------CORRECT ANSWER- ----------------2 miles A high level warning device (flag tree) shall consist of a minimum of ________ flags and shall maintain a height of _______ to the lowest point on the flag material. ---------CORRECT ANSWER-----------------2 flags 8 ft Warning lights shall have a minimum mounting height of _______ inches to the bottom of the lens ---------CORRECT ANSWER-----------------30 inches For daylight operations ______ are the most common channeling devices - --------CORRECT ANSWER-----------------Cones
The minimum size of a STOP/SLOW paddle is _______ inches wide with letters at least _______ inches high ---------CORRECT ANSWER-------------- ---18 inches 6 inches The standard red flag used for (emergency) flagging is at least ________ inches square and fastened to a _______ inch staff ---------CORRECT ANSWER-----------------24 inches 36 inches The night flagging station should be ________ ---------CORRECT ANSWER-----------------Illuminated Which should a Flagger do:
- never stand on the open roadway
- always face oncoming traffic
- not mingle with the workers
- not block or be blocked by signs ---------CORRECT ANSWER----------------- All of the above When two flagger are used and you are in doubt about what the other flagger message is, what must you display to oncoming traffic? --------- CORRECT ANSWER-----------------Stop You should not begin a flagging operation until the ________ sign has been placed ---------CORRECT ANSWER-----------------Flagger ahead
It a driver refuses to obey your signal what three things should you do/try to do? ---------CORRECT ANSWER-----------------Get out of the way Warn the workers Get their license plate number On a roadway posted at 40 MPH, how far in advance of the work space should the flagger station be? ---------CORRECT ANSWER----------------- 305 feet Where is the flagging station when only one flagger is used for two directions of traffic? ---------CORRECT ANSWER-----------------Opposite of the worksite When two or more flagger are used one flagger should be --------- CORRECT ANSWER-----------------Designated leader The use of flags, as a hand signaling device, should be limited to ________ situations ---------CORRECT ANSWER-----------------Emergency If the work area requires a tapered lane closure, the flagging station should be located at the _______ of the taper ---------CORRECT ANSWER---------- -------Start When two flaggers are used and there are sight obstructions, which of the following may be used? Flag carrying vehicle Walkie talkie Official car
The redirection of the drivers normal path occurs at the beginning of the _________ area ---------CORRECT ANSWER-----------------Transition The area of the roadway where work takes place is called the _______ area ---------CORRECT ANSWER-----------------Activity The area that is used to return traffic to the normal path is the ________ area ---------CORRECT ANSWER-----------------Termination Longitudinal buffer space speared the approaching traffic from the _______ ---------CORRECT ANSWER-----------------Work space A lateral buffer space my be used to separate the _______ from the work space or potentially hazardous area ---------CORRECT ANSWER-------------- ---Traffic space The two major factors to calculate taper lengths for cones are _____ and ______ ---------CORRECT ANSWER-----------------Speed and width of the lane The taper length formula for speed limits of 45 mph or greater is --------- CORRECT ANSWER-----------------L=WS
as a general rule, the maximum spacing in feet between traffic control devices in a taper is equivalent to ---------CORRECT ANSWER----------------- the speed limit in mph A diversion is? ---------CORRECT ANSWER-----------------A temporary re- routing onto a TEMPORARY highway Traffic control through long work areas may be coordinated by _______ or _______ methods ---------CORRECT ANSWER-----------------Flag Transfer or pilot car Special considerations should be made for the safety of _________ and _______ ---------CORRECT ANSWER-----------------Pedestrians Workers What is the key word through work area traffic control? ---------CORRECT ANSWER-----------------Safety When planning and designing for safety in the work space, what six things must be considered? ---------CORRECT ANSWER-----------------1. Type of work
- The location
- The time involved
- Type of roadway
- Traffic speed
- Traffic volume
__________ operations are work activities that move along the roadway either intermittently or continuously. ---------CORRECT ANSWER-------------- ---Mobile When working on the shoulder of a roadway __________ should be used to block traffic from entering the work area. ---------CORRECT ANSWER---- -------------Channelization Advance warning signs should move along with ________ operations. ------ ---CORRECT ANSWER-----------------Mobile Work zone sign in rural area Clear Zone (Distance from sign to edge of traveled way) ---------CORRECT ANSWER-----------------6 to 12 ft Work zone sign in business, commercial, or residential area with curb clear zone (Distance from sign to edge of traveled way) ---------CORRECT ANSWER-----------------2 ft min Work zone sign in business, commercial, or residential area without curb clear zone (Distance from sign to edge of traveled way) ---------CORRECT ANSWER-----------------6 to 12 ft Methods of mounting signs other than on posts ---------CORRECT ANSWER-----------------Flag tree, barrier, portable, tripod
Distance between signs - urban (low speed) ---------CORRECT ANSWER--- --------------100 ft Distance between signs - urban (high speed) ---------CORRECT ANSWER-- --------------- 350 Distance between signs - rural ---------CORRECT ANSWER----------------- 5 00 ft Distance between signs - expressway/freeway ---------CORRECT ANSWER-----------------1000, 1500, 2640 (A, B, C) Flashing arrow modes ---------CORRECT ANSWER-----------------Flashing arrow, sequential arrow, sequential chevron, flashing double arrow, flashing caution, alternating diamond caution What does a flashing arrow on an arrow board mean? ---------CORRECT ANSWER-----------------Merge right What does a sequential arrow on an arrow board mean? ---------CORRECT ANSWER-----------------Merge right What does a flashing double arrow on an arrow board mean? --------- CORRECT ANSWER-----------------Merge right or left
