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MCQ
3101. Calculate effective length of Road on a highway given the overall thickness is 500 mm and thickness of wearing course is 80 mm (x is 3.6m). [BB-20]
4.76m
34.8m
2.34m
1.45m
Overall thickness = 500mm = 0.5m Thickness of wearing course 80mm (x=3.6m)=.08m Effective length of road = 3.6+2(0.5+0.08)= 4.76m.
3102. Carriage-way is protected by --- wide shoulders.
0.5 to 1.25
1.25 to 2
2 to 4
4 to 6
3103. Penetration test on bitumen is used to determine its- [HED-19]
Grade
Viscosity
Ductility
All of these
3104. A water-bound macadam road is an example of- [BGFCL-17]
rigid pavement
semi-rigid pavement
flexible pavement
none
A pavement which consists of a mixture of a asphalticor bituminous matedrial and aggregate placed on a good quality and compacted granular material is termed as flexible pavement. Example- Water bound macadam road.
3105. The term used for major important roads of a country is-
country road
urban road
highway
none of these
3106. For the water-bound macadam road, the recommended camber is-
1 in 24 to 1 in 30
1 in 30 to 1 in 48
1 in 48 to 1 in 80
1 in 80 to 1 in 120
3107. The Central Road Organisation (CRO) was set up in-
1930
1948
1934
1956
3108. The foundation of a road is also called-
soling
base
either a or b
none of these
3109. The main function of railway sleepers is to- [MOCA-19]
support the rails
keep the two rails at correct gauge
distribute the load coming on the rails & the ballast
all the above
3110. What is the weight for 1 cft RCC slab of thickness 0"-4"? [MES-16]
150 lb
100 lb
50 lb
60 lb
ব্যাখ্যা 4''*150/12=50 lb
3111. The top of the ground on which the foundation of road rests, is called- [MOD-20]
sub-grade
base
soling
wearing layer
3112. A road connecting two towns is called
country road
urban road
highway
none of these
3113. Asphalt cement usually used in Bangladesh has the penetration range of- [MES-16]
AC 40-50
AC 85-100
AC 60-70
AC 120-150
3114. The roads connecting capital cities of states are called-
national highway
state highway
express way
capital highway
3115. The asphalt naturally available is
Surface asphalt
Lake asphalt
Rock asphalt
All of above
3116. The highest point on road surface is called [MOD-20]
crown
camber
gradient
berm
3117. The reception signal is- [MES-16]
outer signal
home signal
both a & b
none of these
3118. The stopping sight distance of a vehicle moving with 45 kmph (coefficient of friction is 0.4 and reaction time is 2.5 sec) is [BB-20]
48m
49m
50m
51m
3119. Level crossing' is a- [MOD-20]
regulatory sign
warning sign
informatory sign
none of these
3120. How many parts of a pavement? [BREB-17]
3
5
4
6
There are 4 part of a pavement such as subgrade, sub- base. Base course and surface course or wearing course,