1、1.This warning sign means?A.Right lane ends ahead.B.Narrow bridge ahead.C.Left lane ends ahead.D.Soft shoulder warning ahead.Explanation:Left lane ends ahead. Drivers in the left lane must merge into the right lane when safe to do so.2.This warning sign means?A.Left curve ahead warning.B.Merging traffic from the right.C.Hairpin curve ahead, extreme right curve.D.Right turn ahead warning.Explanation:If the change in horizontal alignment is 135 degrees or more, the Hairpin Curve (W1-11) sign may b
2、e used.3.This sign means?A.Two way traffic warning.B.Warning for 2 lane highway.C.Left lane ends ahead.D.Right lane ends ahead.Explanation:Right lane ends ahead. Drivers in the right lane must merge into the left lane when safe to do so.4.This sign means?A.Divided highway ends.B.Keep to the right of obstruction.C.Keep to the left of obstruction.D.Left lane ends.Explanation:The Keep Right (R4-7) sign may be used at locations where it is necessary for traffic to pass only to the right of a roadway
3、 feature or obstruction. A traffic island, obstruction or median is ahead. Keep to the right.5.If you see orange construction signs and cones on a freeway, you must:A.Slow down because the lane ends ahead.B.Be prepared for workers and equipment ahead.C.Change lanes and maintain your current speed.6.This sign means?A.U-turn is prohibited.B.No left lane.C.Left lane ends.D.No left turn.Explanation:No U-turn. Do not turn around in the street or at an intersection.7.This sign means?A.Come to a comple
4、te stop, proceed only when safe to do so.B.Slow down and yield to oncoming trafficC.Stop only to avoid an accidentD.Slow down and proceed if traffic allows.Explanation:When a sign is used to indicate that traffic is always required to stop, a STOP (R1-1) sign shall be used. Come to a full stop, then go when it is safe to do so. The STOP sign shall be an octagon with a white legend and border on a red background.8.This sign means?A.Advance warning of a low speed sharp left curve.B.Road curves rig
5、ht, then turns left.C.Advance warning of a winding road.D.Advance warning of a right curve.Explanation:The road will curve sharply to the left. You need to reduce your speed and be alert.9.This sign means?A.Warning sign for truck ramp.B.Warning sign for draw bridge ahead.C.Warning sign for hill ahead.D.No trucks warning sign.Explanation:The Hill (W7-1) sign should be used in advance of a downgrade where the length, percent of grade, horizontal curvature, and/or other physical features require sp
6、ecial precautions on the part of road users.10.This sign means?A.Advance warning of a cross intersection.B.X intersection ahead warning sign.C.No right turn warning.D.Railroad crossing ahead warning sign.Explanation:This sign warns of a railroad crossing ahead.11.This warning sign means?A.Road ramp ahead.B.Low clearance ahead.C.Road narrows ahead.D.Road under water ahead.Explanation:The Low Clearance sign may be installed in advance of the structure. Example, the overpass has a low clearance. Do
7、 not proceed if the vehicle height is over the listed clearance dimensions.12.A white painted curb means:A.Loading zone for freight or passengers.B.Loading zone for passengers or mail only.C.Loading zone for freight only.13.This road sign means:A.Warning of a hazard.B.Yield right-of-way.C.Railroad crossing.D.Speed limit.14.This road sign means:A.Right lane ends soon, merge left.B.Soft shoulders.C.Low place in the road.D.Lane ends soon, merge right.15.This warning sign means?A.Pavement ends ahead
8、.B.Lane ends ahead.C.Road construction ahead.D.Road closed ahead.Explanation:A PAVEMENT ENDS (W8-3a) symbol sign may be used where a paved surface changes to either a gravel treated surface or an earth road surface.16.This curve advisory speed sign means?A.Slow down, maximum advised speed is 25 mph in ideal conditions.B.Minimum advised speed limit is 25 mph in ideal conditions.C.Minimum advised speed limit is 25 mph in all conditions.D.Slow down, maximum advised speed is 25 mph in all conditions
9、.Explanation:Slow down, maximum advised speed is 25 mph in ideal conditions.17.This sign means?A.Pedestrian crossing ahead.B.School advance warning, you are entering a school zone.C.Pedestrians only, no vehicle traffic.D.Pedestrians ahead warning sign.Explanation:The School Advance Warning sign (S1-1). Warning that you are approaching or already in a school zone. Slow down and watch out for children playing or crossing the street, be prepared to stop. This is not a pedestrian crossing sign.18.This sign means?A.Divided highway ends.B.Wrong way, turn around.C.Traffic flows only in the
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