# SSC JE Civil Engineering Preliminary Exam in January 2018 | Practice test Day – 35

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1.

The desirable camber for straight roads with water bound macadam or gravel surface, is

1 out of 20
2.

At a road junction, 16 cross conflict points are severe, if

2 out of 20
3.

The shape of a vertical curve, is

3 out of 20
4.

California Bearing Ratio method of designing flexible pavements is more accurate as it involves

4 out of 20
5.

The basic formula for determination of pavement thickness was first suggested by

5 out of 20
6.

If x% is the gradient of an alignment and y% is the gradient after proper super-elevation along a  curved portion of a highway, the differential grade along the curve, is

6 out of 20
7.

Road makers along roads from the edge of a kerb should not be less than

7 out of 20
8.

The top height of a route marker above crown level is

8 out of 20
9.

Along horizontal curves, if centrifugal force exceeds lateral friction, vehicles may

9 out of 20
10.

If N is the algebraic difference of grades, S is the minimum sight distance in metres, the length (L)  of a summit curve is

10 out of 20
11.

If V is the design speed of vehicles in km/hour, the change of radial acceleration in metres/sec3, is

11 out of 20
12.

If metres is the distance between extreme axles of a vehicle, its gross load should not exceed

12 out of 20
13.

The absolute minimum radius of horizontal curve for a design speed 60 kmph is

13 out of 20
14.

If At is the area of steel cross-section, t is working stress, L is width of road and W is weight of slab  per square metre, the spacing of the tie bars for a longitudinal joint, is

14 out of 20
15.

The inventor of road making as a building science, was

15 out of 20
16.

For clear distinct vision, images of obstructions should fall on the retina with a cone of

16 out of 20
17.

If the elevations along a road increase, the slope of the road along the longitudinal direction, is known as

17 out of 20
18.

The pavement width of a road depends upon

18 out of 20
19.

Non-passing sight distance along a road is the longest distance at which the driver of a moving  vehicle, may see an obstacle on the pavement

19 out of 20
20.

The convexity provided to the carriageway between the crown and edge of the pavement, is known as

20 out of 20

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