Practice Test: Question Set - 06
1. According to the recommendations of Nagpur Conference, the width formation of an ideal National Highway in hard rock cutting, is
- (A) 8.9 m
- (B) 7.9 m
- (C) 6.9 m
- (D) 6.5 m
2. Setting out of Lemniscate transition curves, is done with
- (A) Perpendicular
offsets
- (B) Radial
offsets
- (C) Deflection
angles
- (D) Polar
deflection angles
3. Maximum daily traffic capacity of bituminous pavements is
- (A) 500 tonnes
per day
- (B) 1000 tonnes
per day
- (C) 1500 tonnes
per day
- (D) 2000 tonnes
per day
4. The head light of vehicles should be such that its lower beam illuminates objects at
- (A) 10 m
- (B) 20 m
- (C) 30 m
- (D) 40 m
5. The gradients of trace cuts for hilly roads, are kept
- (A) Equal to
ruling gradient
- (B) 10 to 20
percent easier than ruling gradients
- (C) 10 to 20
percent steeper than ruling gradients
- (D) None of
these
6. Which of the following represents a carpet of sand-bitumen mix without coarse aggregates?
- (A) Mastic
asphalt
- (B) Sheet
asphalt
- (C) Bituminous
carpet
- (D) Bituminous
concrete
7. Reinforcement in cement concrete slab of road pavements, is placed
- (A) Longitudinally
- (B) Transversely
- (C) Longitudinally
and transversely
- (D) In the form
of welded wire mesh
8. The ability of a driver to stop the vehicle moving with the designed speed, depends upon:
- (A) Perception
time
- (B) Brake
reaction time
- (C) Efficiency
of the brakes
- (D) All the
above
9. Maximum number of vehicles can be parked with
- (A) Parallel
parking
- (B) 30° angle
parking
- (C) 45° angle
parking
- (D) 90° angle
parking
10. On concrete roads, the camber generally provided, is
- (A) 1 in 20 to 1
in 24
- (B) 1 in 30 to 1
in 48
- (C) 1 in 36 to 1
in 48
- (D) 1 in 60 to 1
in 72
11. If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept
- (A) 1.275 d
- (B) 1.125 d
- (C) 0.85 d
- (D) 0.75 d
12. The ductility value of bitumen for suitability in road construction should not be less than
- (A) 30 cm
- (B) 40 cm
- (C) 50 cm
- (D) 60 cm
13. If L is the length of a moving vehicle and R is the radius of curve, the extra mechanical width b to be provided on horizontal curves,
- (A) L/R
- (B) L/2R
- (C) L²/2R
- (D) L/3R
14. Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2, is
- (A) 17.0 cm
- (B) 25.5 cm
- (C) 34.0 cm
- (D) 42.5 cm
15. For rapid curing cutbacks, the oil used is
- (A) Gasoline
- (B) Kerosene oil
- (C) Light diesel
- (D) Heavy diesel
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