Deck 1: Road Design and Safety Standards: Camber, Slope, Width, and Distance Requirements

Question 1

The braking efficiency for a vehicle moving with a speed of 18kmph, having a lag distance of 14m and coefficient of longitudinal friction is 0.36.

A)25.28%
B)25.4%
C)25.6%
D)25.8%

Answer 1

25.28%

Question 2

If the longitude coefficient of friction is 0.4, then the resultant retardation in m/sec² as per IRC will be ___________

A)3.93
B)4.00
C)4.01
D)4.02

Answer 2

3.93

Question 3

The unevenness index for a good pavement surface of high speed should be ___________

A)1500mm/km
B)2500mm/km
C)3500mm/km
D)4500mm/km

Answer 3

1500mm/km

Question 4

If the camber is x%, then cross slope is ___________

A)100x
B)200/x
C)x/100
D)100+x

Question 5

The camber required depends on ___________

A)type of pavement
B)rainfall
C)type of pavement and rainfall
D)rainfall characteristics

Question 6

The minimum camber required in heavy rainfall area for bituminous roads as per IRC is ___________

A)1%
B)2.5%
C)2.7%
D)3%

Question 7

The camber is not provided in which of the following shape?

A)straight
B)parabolic
C)combination of straight and parabolic
D)circular

Question 8

The rise of crown for pavement of 7m wide having 1 in 50 slopes with respect to edges is ___________

A)0.14
B)0.07
C)0.09
D)0.11

Question 9

The equation of parabolic camber is given by ___________

A)y=x/a
B)y=x² /a
C)y=x³ /a
D)y=ax²

Question 10

The minimum width of carriage way in urban roads is ___________

A)2.5m
B)3.0m
C)3.5m
D)3.75m

Question 11

A median is also called as ___________

A)traffic separator
B)traffic junction
C)traffic check post
D)traffic flow

Question 12

The desirable width as per IRC for median on rural roads is ___________

A)3m
B)5m
C)8m
D)14m

Question 13

The height of low kerb is kept about ___________

A)50mm
B)75mm
C)100mm
D)200mm

Question 14

The minimum shoulder width recommended by IRC is ___________

A)1.0m
B)1.5m
C)2.0m
D)2.5m

Question 15

The width of drive way should be ___________

A)minimum
B)maximum
C)intermediate
D)maximum or minimum

Question 16

A road running parallel to highway for some selected areas with grade separator are called ___________

A)footage road
B)urban road
C)frontage road
D)parallel highway

Question 17

The width of formation is calculated by adding?

A)sum of the width of pavements
B)width of pavement+ separators
C)width of pavement + separators + shoulders
D)width of pavement + separator + shoulders + side drains

Question 18

The boundary till which building activities are prohibited is called ___________

A)right of way
B)boundary line
C)building line
D)control line

Question 19

The normal width recommended in rural areas by IRC for a national highway is ___________

A)45m
B)29 m
C)60 m
D)25 m

Question 20

The length visible to driver at any instance of time is called ___________

A)sight distance
B)visibility limit
C)head light distance
D)overtaking sight distance

Question 21

The stopping sight distance of a vehicle moving with 45kmph and having a coefficient of friction as 0.4 is?

A)48m
B)49m
C)50m
D)51m

Question 22

The stopping sight distance does not depend on ___________

A)break reaction time
B)speed of vehicle
C)length of vehicle
D)friction

Question 23

The SSD is based on ___________

A)speed of vehicle
B)piev theory
C)voluntary action of brain
D)reflex action of brain

Question 24

The reaction time considered in SSD is ___________

A)1.5 sec
B)2 sec
C)2.5 sec
D)3 sec

Question 25

The desirable relationship between OSD and length of overtaking zone is ___________

A)length of overtaking zone = osd
B)length of overtaking zone = 2 osd
C)length of overtaking zone = 3 osd
D)length of overtaking zone = 5 osd