Image
MCQ
27461. The top of the ground on which the foundation of road rests, is called- [MOD-20]
sub-grade
base
soling
wearing layer
27465. 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
27469. 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
27471. 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
27472. Bitumen is generally obtained from- [BB-20]
organic material
synthetic material
petroleum product
coal
27473. 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
27474. A water-bound macadam road is an example of- [BGFCL-17]
rigid pavement
semi-rigid pavement
flexible pavement
none
27477. The term used for major important roads of a country is-
country road
urban road
highway
none of these
27478. 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
27479. The roads connecting capital cities of states are called-
national highway
state highway
express way
capital highway
27480. Penetration test on bitumen is used to determine its- [HED-19]
Grade
Viscosity
Ductility
All of these