CIVIL ENGINEERING MCQ – PART: 09

1   One of the following is not a transportation mode:

a. Airways
b. Railroads
c. Waterways
d. Highways
e. None of the above @

2.      The highway mode consists of:

a. Highway facilities and traffic systems@
b. Highway facilities only
c. Traffic systems only
d. Freeways only
e. Highways only

3.      Highway facilities include:

a. Rural roads only
b. Urban roads only
c. a and b@
d. Local streets only
e. Traffic signals

4.      One of the following is not among traffic systems:

a. Signalized intersections
b. Unsignalized intersections
c. Roundabouts
d. Intelligent Transportation Systems
e. Parking facilities@

5.      The design, operation, and control of traffic systems impact one or more of the following
components of traffic systems:

a. Capacity
b. Level of service
c. Safety
d. Mobility
e. All of the above@

6.      The number of merging conflict points at a 4-leg intersection is:

a. 4
b. 6
c. 8@
d. 12
e. 32

7.      The number of diverging conflict points at a 4-leg intersection is:

a. 4
b. 6
c. 8@
d. 12
e. 32

8.      The total number of conflict points at a 4-leg intersection is equal to:

a. 4
b. 6
c. 8
d. 12
e. 32@

9.      The total number of conflict points at a 3-leg intersection is:

a. 3
b. 6
c. 9@
d. 12
e. 15

10  One of the following is not among the uses and importance of traffic engineering:

a. Safety
b. Geometric design of roads@
c. Capacity of roads
d. Transportation planning
e. Mobility

11 A two-lane two-way highway is a highway having:

a. A total of four lanes for both directions (two lanes per direction)
b. A total of two lanes for both directions (one lane per direction) @
c. A total of eight lanes for both directions (four lanes per direction)
d. A total of two lanes (moving in only one direction)
e. None of the above

12 A multi-lane highway consists of:

a. A minimum of two lanes per direction@
b. A total of two lanes for both directions
c. A total of four lanes for both directions
d. Four lanes in each direction
e. A minimum of six lanes per direction

13 Traffic jams are defined in traffic engineering as:

a. Bottleneck conditions
b. Shock waves
c. Traffic congestions@
d. Weaving and merging
e. Traffic behaviors in off-peak hours

14 Visual perception is one of the driver characteristics in traffic engineering; one of the following characteristics is not considered a visual perception:

a. Visual acuity
b. Peripheral vision
c. Color vision
d. Depth perception
e. Reaction@

15 The ability to see the fine details of an object on a roadway is called:

a. Brightness
b. Contrast
c. Peripheral vision
d. Visual acuity@
e. Glare vision

16 The ability of the driver to detect moving objects on a roadway is called:

a. Dynamic visual acuity@
b. Static visual acuity
c. Peripheral vision
d. Glare vision
e. Depth perception

17 One of the following is not among the factors that impact static visual acuity of drivers:

a. Background
b. Brightness
c. Contrast
d. Time
e. Speed@

18 The conical angle of clear vision for drivers is equal to:

a. 6–8°
b. 10–12°
c. 3–5°@
d. 0–90°
e. 0–180°

19 The conical angle for moderately clear vision is:

a. 6–8°
b. 10–12°@
c. 3–5°
d. 0–90°
e. 0–180°

20 The ability of a driver to see objects beyond the conical angle of clear vision is called:

a. Visual acuity
b. Peripheral vision@
c. Color vision
d. Glare vision and recovery
e. Depth perception

21 The angle for peripheral vision can go up to:

a. 5°
b. 8°
c. 90°
d. 160°@
e. 180°

22 For color vision, the eye is typically most sensitive to a combination of the following two
colors:

a. Black and red
b. White and blue
c. Black and white
d. Black and yellow
e. c and d@

23 There are two types of glare vision, which are:

a. Simple and fussy
b. Direct and specular@
c. Slow and fast
d. Recovered and unrecovered
e. None of the above

24 Glare recovery for drivers when moving from dark to light is approximately:

a. 3 seconds@
b. ≥ 6 seconds
c. ≤ 6 seconds
d. 8 seconds
e. 10 seconds

25 Glare recovery for drivers when moving from light to dark is about:

a. 3 seconds
b. ≥ 6 seconds@
c. ≤ 6 seconds
d. 8 seconds
e. 10 seconds

26 The ability of a driver to estimate speed and distance is called:

a. Visual acuity
b. Peripheral vision
c. Color vision
d. Glare vision and recovery
e. Depth perception@

27 Traffic control device are made standard in size, shape, and color in order to:

a. Help color-blind drivers in identifying signs
b. Minimize the effect of visual perception
c. Minimize the effect of hearing perception
d. Minimize the driver’s perception–reaction time
e. a and b@

28  The process through which a driver estimates and reacts to an event is called:

a. Reaction process
b. Perception process
c. Perception–reaction process@
d. Weaving process
e. Merging process

29  29 The driver’s perception–reaction time does not impact one of the following:

a. Braking distance
b. Sight distance
c. Yellow phase at a signalized intersection
d. Green phase at a signalized intersection@
e. All of the above

30  One of the following is not among the factors affecting the perception–reaction time:

a. Driver’s age
b. Conditions under which driver is driving
c. Complications of the event
d. Existing environmental and road conditions
e. Speed@

31  One of the following is not among kinematic characteristics of vehicles:

a. Acceleration
b. Speed
c. Size@
d. All of the above
e. None of the above

32  One of the following is not among dynamic characteristics of vehicles:

a. Air resistance
b. Grade resistance
c. Rolling resistance
d. Curve resistance
e. Weight@

33 The size of a vehicle is an important characteristic in determining the following except
one, that is:

a. Parking space
b. Lane width
c. Shoulder width
d. Pavement structural design@
e. Length of vertical curve

34  The weight of a vehicle is an important characteristic considered in the design of:

a. Parking space
b. Lane width
c. Pavement structure
d. Maximum road grade
e. c and d@

35  The American Association of State Highway and Transportation Officials (AASHTO)
classify vehicles into three main categories, which are:

a. Motorcycles, bicycles, and passenger cars
b. Motorcycles, passenger cars, and trucks
c. Passenger cars, light-weight trucks, and heavy-weight trucks
d. Passenger cars, buses/recreational vehicles, and trucks@
e. Motorcycles, passenger cars, and buses

36  The equivalent hourly rate at which vehicles are passing a point on a roadway during a time period less than one hour is called:

a. Volume
b. Density
c. Flow@
d. Speed
e. Capacity

37 The number of vehicles per unit length of roadway at a specific time is called:

a. Volume
b. Density@
c. Flow
d. Speed
e. Capacity

38  The graph that illustrates the relationship between the position of vehicles in traffic stream and time is called:

a. Speed–flow diagram
b. Density–speed diagram
c. Flow–density diagram
d. Time–space diagram@
e. Time–speed diagram

39  The arithmetic mean of speeds of vehicles on a highway at a specific time is called:

a. Time mean speed@
b. Space mean speed
c. Design speed
d. Speed limit
e. 90th percentile of speed

40 The harmonic mean of speeds of vehicles during a specific time interval on a highway is called:

a. Time mean speed

b. Space mean speed@
c. Design speed
d. Speed limit
e. 90th percentile of speed

41  Time speed compared to space mean speed is always:

a. Lower
b. Equivalent
c. Higher@
d. 50%
e. Double

42    The difference between the time arrivals of two successive vehicles at a point on a roadway

is called:
a. Passing time
b. Travel time
c. Reaction time
d. Space headway
e. Time headway@

43     Green shields model can be used for the following traffic conditions:

a. Light traffic only
b. Dense traffic only
c. a or b@
d. Shockwaves
e. Bottleneck conditions

44  Greenberg’s model can be used for the following traffic conditions:

a. Light traffic only
b. Dense traffic only@
c. a or b
d. Shockwaves
e. Bottleneck conditions

45  A sudden reduction of the capacity of a highway due to a certain event is called:

a. Jammed condition
b. Shockwave in traffic stream
c. Bottleneck conditions
d. b or c@
e. All of the above

46  The process in which a vehicle in a traffic stream joins another traffic stream traveling in
the same direction is called:

a. Merging@
b. Diverging
c. Weaving
d. Gap acceptance
e. Gap

47   The process in which a vehicle in a traffic stream leaves the traffic stream is called:

a. Merging
b. Diverging@
c. Weaving
d. Gap acceptance
e. Gap

48   The process in which a vehicle first joins a traffic stream, traverses the stream, and then
merges into another stream moving in the same direction is called:

a. Merging@
b. Diverging
c. Weaving
d. Gap acceptance
e. Gap

49  The difference between the distance a merging vehicle is away from a reference point in
the area of merging and the distance a vehicle in the main stream is away from the same
point at a specific time is called:

a. Time gap
b. Critical gap
c. Space gap@
d. Clearance
e. None of the above

50  According to Raff, the definition “the number of accepted gaps shorter than it is equal to
the number of rejected gaps longer than it” refers to:

a. Time gap
b. Critical gap@
c. Space gap
d. Clearance
e. None of the above

51   The maximum number of vehicles a roadway can carry at a specific time is called:

a. Density
b. Flow
c. Volume
d. Capacity@
e. Flow rate

52   The number of vehicles passing a point on a highway during a time period less than one
hour (represented as equivalent hourly rate) is called:

a. Density
b. Flow
c. Volume
d. Capacity
e. Flow rate@

53   The ratio between the traffic volume and the maximum equivalent hourly rate within a
given one-hour period is called:

a. Peak-hour factor (PHF) @
b. Flow rate
c. Level of service (LOS)
d. Peak-hour volume
e. Volume-to-capacity ratio

54  Traffic conditions as well as roadway conditions impact the level of service (LOS) of a
transportation facility; one of the following roadway factors does not affect the LOS:

a. Lane width
b. Lateral obstruction
c. Grade
d. Number of lanes
e. Number of horizontal curves@

55 One of the following traffic factors does not impact the LOS of a highway:

a. Traffic composition (mix)
b. Speed
c. Drivers familiarity with the highway
d. Heavy vehicles
e. None of the above@

56 A divided roadway with complete access control and a minimum of two lanes in each
direction is called:

a. Divided highway
b. Multi-lane highway
c. Freeway@
d. Two-lane two-way highway
e. Four-lane highway

57  A two-lane two-way is a highway with:

a. A total of four lanes for the two directions
b. A total of two lanes (one lane in each direction) @
c. A total of two lanes in one direction
d. A total of four lanes in one direction
e. None of the above

58  Intersections having traffic flow crossing with interruption is called:

a. Signalized intersections
b. Unsignalized intersections
c. Roundabouts
d. Interchanges
e. a or b or c@

59  Intersections having traffic flow crossing without interruption is called:

a. Signalized intersections
b. Unsignalized intersections
c. Roundabouts
d. Interchanges@
e. At-grade intersections

60 Traffic control devices are mainly needed for:

a. At-grade intersections@
b. Interchanges
c. Grade-separated intersections without ramps
d. High-volume intersections
e. All of the above

61 The most desired two goals that a traffic control device should achieve at intersections are:

a. Safety and uniformity
b. Safety and efficiency@
c. Efficiency and uniformity
d. Operation and uniformity
e. Safety and operation

62   MUTCD stands for:

a. Manual of Uniform Traffic Control Devices
b. Manual on Uniform Traffic Control Devices@
c. Manual of Uninterrupted Traffic Control Devices
d. Manual on Uninterrupted Traffic Control Devices
e. Manual on Uniform Traffic Capacity and Density

63  One of the following is not among intersection traffic control systems:

a. Stop signs
b. Yield signs
c. Traffic signals
d. Raised barriers
e. Electronic camera@