Practice Test: Question Set - 11
1. A single lane carriage way whenever changes to two-lane carriage way, is affected through a taper of
- (A) 1 in 10
- (B) 1 in 15
- (C) 1 in 20
- (D) 1 in 15 to 1
in 20
2. If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is
- (A) NS2/4.4
if L > S
- (B) 2S - 4.4/N if L < S
- (C) 2S - 4.4/N if L > S
- (D) Both (a)
and (b)
3. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40°C should be
- (A) Less than
40°C
- (B) Greater than
40°C
- (C) Equal to
40°C
- (D) None of the
above
4. According to IRC : 52-1973, for a single lane National Highway in hilly region,
- (A) Width of the
carriageway must be 3.75 m
- (B) Shoulders on
either side must be 1.25 m
- (C) Total
width of the road-way must be 6.25 m
- (D) All of the
above
5. If a Lemniscate curve of transition throughout is introduced to connect two parallel roads, the maximum polar angle of the curve, is
- (A) 10°
- (B) 15°
- (C) 20°
- (D) 30°
6. Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be
- (A) 40 cm
- (B) 52 cm
- (C) 64 cm
- (D) 76 cm
7. The standard equation of a cubical spiral transition curve provided on roads, is
- (A) y = l2/6RL
- (B) y = x3/6RL
- (C) y = x2/6RL
- (D) y = x/6RL
8. If N is the algebraic difference of grades, S is the head light beam distance in metres, the length (L) of a valley curve, is
- (A) NS2/4
- (B) NS2/6
- (C) NS2/9.6
- (D) NS2/4.8
9. To prevent compressive stresses in a rigid concrete pavement, the joint provided, is
- (A) Expansion
joint
- (B) Contraction
joint
- (C) Hinged joint
- (D) All the
above
10. Along high ways confirmatory route markers are generally fixed
- (A) Before the
crossing on the left side
- (B) After the
crossing on the left side
- (C) Before the
crossing on the right side
- (D) After the
crossing on the right side
11. If the width of carriage way is 12.5 meters, outer edge 50 cm higher than the inner edge, the required super elevation is
- (A) 50 cm
- (B) 1 in 25
- (C) 1 in 400
- (D) 1 in 40
12. If N is the net difference of grades, S is the minimum overtaken sight distance in meters, the length (L) of a summit curve, is
- (A) NS/4
- (B) NS2/4
- (C) NS2/4.8
- (D) NS2/9.6
13. Super-elevation on roads in snow bound areas, should generally not exceed
- (A) 15 %
- (B) 12 %
- (C) 10 %
- (D) 7 %
14. Passing zones are generally not provided on
- (A) Summit
curves
- (B) Horizontal
curves
- (C) Two lane highways
- (D) All the
above
15. In a braking test, a vehicle traveling at 36 km ph was stopped at a braking distance of 8.0 m. The average value of the vehicle's skid resistance (friction coefficient) is
- (A) 0.64
- (B) 6.25
- (C) 0.16
- (D) None of
these
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