MCQOPTIONS
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MCQOPTIONS
This section includes 29 Mcqs, each offering curated multiple-choice questions to sharpen your Traffic Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An automobile with projected area 2.6 m2 is running on a road with speed of 120 km per hour. The mass density and the kinematic viscosity of air are 1.2 kg/m3 and 1.5 10 5 m2 / s, respectively. The drag coefficient is 0.30. The drag force on the automobile is |
| A. | 620 N |
| B. | 600 N |
| C. | 580 N |
| D. | 520 N |
| Answer» E. | |
| 2. |
The following statements are made related to the lengths of turning lanes at signalized intersections :
|
| A. | Maximum of (ii and iii) |
| B. | Maximum of (i and iii) |
| C. | Average of (i and iii) |
| D. | Only (iv) |
| Answer» B. Maximum of (i and iii) | |
| 3. |
A two-lane urban road with one-way traffic has a maximum capacity of 1800 vehicles/hour. Under the jam condition, the average length occupied by the vehicles is 5.0 m. The speed versus density relationship is linear. For a traffic volume of 1000 vehicles/hour, the density (in vehicles/km) is |
| A. | 52 |
| B. | 58 |
| C. | 67 |
| D. | 75 |
| Answer» D. 75 | |
| 4. |
The speed-density (u-k) relationship on a single lane road with unidirectional flow is u = 70 0.7 k, where u is in km/hr and k is in veh/km. The capacity of the road (in veh/hr) is _______ |
| A. | 1165 |
| B. | 6544 |
| C. | 1750 |
| D. | 1250 |
| Answer» D. 1250 | |
| 5. |
Two major roads with two lanes each are crossing in an urban area to form an uncontrolled intersection. The number of conflict points when both roads are one-way is "X" and when both roads are two-way is "Y". The ratio of X to Y is |
| A. | 0.25 |
| B. | 0.33 |
| C. | 0.50 |
| D. | 0.75 |
| Answer» B. 0.33 | |
| 6. |
It was observed that 150 vehicles crossed a particular location of a highway in a duration of 30 minutes. Assuming that vehicle arrival follows a negative exponential distribution, find out the number of time headways greater than 5 seconds in the above observation ? |
| A. | 8.88 |
| B. | 98.88 |
| C. | 9 |
| D. | None of the above |
| Answer» C. 9 | |
| 7. |
An automobile with projected area 2.6 m |
| A. | 620 N |
| B. | 600 N |
| C. | 580 N |
| D. | 520 N |
| Answer» E. | |
| 8. |
On a section of a highway the speed-density relationship is linear and is |
| A. | 1200 |
| B. | 2400 |
| C. | 4800 |
| D. | 9600 |
| Answer» C. 4800 | |
| 9. |
It is proposed to widen and strengthen an existing 2-lane NH section as a divided highway. The existing traffic in one direction is 2500 commercial vehicles (CV) per day. The construction will take 1 year. The design CBR of soil subgrade is found to be 4 percent. Given: traffic growth rate for CV = 8 percent, vehicle damage factor = 3.5 (standard axles per CV), design life = 10 years and traffic distribution factor = 0.75. The cumulative standard axles (msa) computed are |
| A. | 35 |
| B. | 37 |
| C. | 65 |
| D. | 70 |
| Answer» E. | |
| 10. |
A roundabout is provided with an average entry width of 8.4 m, width of weaving section as 14 m and length of the weaving section between channelizing islands as 35 m. The crossing traffic and total traffic on the weaving section are 1000 and 2000 PCU per hour respectively. The nearest rounded capacity of the roundabout (in PCU per hour is) |
| A. | 3300 |
| B. | 3700 |
| C. | 4500 |
| D. | 5200 |
| Answer» C. 4500 | |
| 11. |
An isolated three-phase traffic signal is designed by Webster s method. The critical flow ratios for three phases are 0.20, 0.30 and 0.25 respectively, and lost time per phase is 4 seconds. The optimum cycle length (in seconds) is _________. |
| A. | 90 to 95 |
| B. | 80 to 85 |
| C. | 40 to 60 |
| D. | 80 to 90 |
| Answer» B. 80 to 85 | |
| 12. |
A pre-timed four phase signal has critical lane flow rate for the first three phases as 200, 187 and 210 veh/hr with saturation flow rate of 1800 veh/hr/lane for all phases. The lost time is given as 4 seconds for each phases. If the cycle length is 60 seconds, the effective green time (in seconds) of the fourth phase is __________ |
| A. | 14 to 18 |
| B. | 12 |
| C. | 18 |
| D. | 14 |
| Answer» B. 12 | |
| 13. |
The average spacing between vehicles in a traffic is 50 m, then the density (in veh/km) of the stream is __________ |
| A. | 10 |
| B. | 20 |
| C. | 39 |
| D. | 24 |
| Answer» C. 39 | |
| 14. |
The capacities of "One-way 1.5 m wide sidewalk (persons per hour)" and "One-way 2-lane urban road (PCU per hour, with no frontage access, no standing vehicles and very little cross traffic) are respectively |
| A. | 1200 and 2400 |
| B. | 1800 and 2000 |
| C. | 1200 and 1500 |
| D. | 2000 and 1200 |
| Answer» B. 1800 and 2000 | |
| 15. |
If the standard deviation of the spot speed of vehicles in a highway is 8.8 kmph and the mean speed of the vehicles is 33 kmph, the coefficient of variation in speed is |
| A. | 0.1517 |
| B. | 0.1867 |
| C. | 0.2666 |
| D. | 0.3646 |
| Answer» D. 0.3646 | |
| 16. |
In signal design as per Indian Roads Congress specifications, if the sum of the ratios of normal flows to saturation flow of two directional traffic flow is 0.50 and the total lost time per cycle is 10 seconds, the optimum cycle length in seconds is |
| A. | 100 |
| B. | 80 |
| C. | 60 |
| D. | 40 |
| Answer» E. | |
| 17. |
If a two-lane national highway and a two-lane state highway intersect at right angles, the number of potential conflict points at the intersection, assuming that both the roads are two-way is |
| A. | 11 |
| B. | 17 |
| C. | 24 |
| D. | 32 |
| Answer» D. 32 | |
| 18. |
On an urban road, the free mean speed was measured as 70 kmph and the average spacing between the vehicles under jam condition as 7.0 m. The speed-flow-density equation is given by |
| A. | 2000 |
| B. | 2500 |
| C. | 3000 |
| D. | None of these |
| Answer» C. 3000 | |
| 19. |
Name the traffic survey data which is plotted by means of "Desire lines". |
| A. | Accident |
| B. | Classified volume |
| C. | Origin and Destination |
| D. | Speed and Delay |
| Answer» D. Speed and Delay | |
| 20. |
The road geomtrics in India are designed for the |
| A. | 98th highest hourly traffic volume |
| B. | 85th highest hourly traffic volume |
| C. | 50th highest hourly traffic volume |
| D. | 30th highest hourly traffic volume |
| Answer» E. | |
| 21. |
The speed and delay studies on a defined section of highway are conducted by |
| A. | radar gun |
| B. | traffic counters |
| C. | moving car method |
| D. | enoscope |
| Answer» B. traffic counters | |
| 22. |
The shape of the STOP sign according to IRC : 67-2001 is |
| A. | circular |
| B. | triangular |
| C. | octagonal |
| D. | rectangular |
| Answer» D. rectangular | |
| 23. |
The following statements are made related to the lengths of turning lanes at signalized intersections : |
| A. | Maximum of (ii and iii) |
| B. | Maximum of (i and iii) |
| C. | Average of (i and iii) |
| D. | Only (iv) |
| Answer» B. Maximum of (i and iii) | |
| 24. |
For two major roads with divided carriage way crossing at right angle, a full clover leaf interchange with four indirect ramps is provided. Following statements are made on turning movements of vehicles to all directions from both roads. Identify the correct statement. |
| A. | Merging from left is possible, but diverging to left is not possible |
| B. | Both merging from left and diverging to left are possible |
| C. | Merging from left is not possible, but diverging to left is possible |
| D. | Neither merging from left nor diverging to left is possible |
| Answer» C. Merging from left is not possible, but diverging to left is possible | |
| 25. |
If the jam density is given as k |
| A. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">k<sub>j</sub> u<sub>f</sub></td></tr><tr><td style="text-align: center;">4</td></tr></table> |
| B. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">k<sub>j</sub> u<sub>f</sub></td></tr><tr><td style="text-align: center;">3</td></tr></table> |
| C. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td><td rowspan="2">k<sub>j</sub> u<sub>f</sub></td></tr><tr><td style="text-align: center;">5</td></tr></table> |
| D. | <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>2</center></td><td rowspan="2">k<sub>j</sub> u<sub>f</sub></td></tr><tr><td style="text-align: center;">3</td></tr></table> |
| Answer» B. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">k<sub>j</sub> u<sub>f</sub></td></tr><tr><td style="text-align: center;">3</td></tr></table> | |
| 26. |
A traffic stream in a particular direction of a two lane road is moving with a constant speed of 50 kmph, with an average headway of 52 seconds. The longitudinal distance between two consecutive vehicle is |
| A. | 30 m |
| B. | 35 m |
| C. | 38 m |
| D. | 42 m |
| Answer» C. 38 m | |
| 27. |
As per IRC : 67-2001, a traffic sign indicating the Speed Limit on a road should be of |
| A. | Circular Shape with White Background and Red Border |
| B. | Triangular Shape with White Background and Red Border |
| C. | Triangular Shape with Red Background and White Border |
| D. | Circular Shape with Red Background and White Border |
| Answer» B. Triangular Shape with White Background and Red Border | |
| 28. |
The average daily traffic on a stretch of road is 300 commercial vehicles per lane per day. Design traffic repetitions for 10 years when vehicle damage factor is 2.5 and traffic growth rate is 7% is |
| A. | 3.8 msa |
| B. | 23.5 msa |
| C. | 45.4 msa |
| D. | 16 msa |
| Answer» B. 23.5 msa | |
| 29. |
The relation between speed u (in km/h) and density k (number of vehicles/km) for a traffic stream on a road is u = 70 0.7k. The capacity on this road is __________ vph (vehicles/hour). |
| A. | 175 |
| B. | 45 |
| C. | 75 |
| D. | 25 |
| Answer» B. 45 | |