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21.

The converence of chief engineers of all provinces was held at Nagpur in

A.	1943	B.	1947
C.	1958	D.	1960

22.

The headquarter of the Indian Roads Congress is at

A.	Mumbai (Bombay)	B.	Kolkata (Calcutta)
C.	Chennai (Madras)	D.	New Delhi

23.

The Indian Roads and Transport Development Association (I.R.T.D.A.) was set up in

A.	1927	B.	1934
C.	1947	D.	1951

24.

The headquarter of the Indian Roads and Transport Development Association is at

A.	Mumbai (Bombay)	B.	Kolkata (Calcutta)
C.	Chennai (Madras)	D.	New Delhi

25.

The Border Roads Development Board was established in

A.	1934	B.	1948
C.	1951	D.	1960

26.

In Nagpur conference, the minimum width of village roads was recommended as

A.	2 m	B.	2.25 m
C.	2.45 m	D.	3.2 m

27.

The size of a stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth level surface. This point of contact will be found to be longitudinally about 25 mm and every piece of stone put into a road which exceeds 25 mm in any of its dimensions is mischievous. This statement is according to Macadam.

Correct

Incorrect

28.

For the water-bound macadam road, the recommended camber is

A.	1 in 24 to 1 in 30	B.	1 in 30 to 1 in 48
C.	1 in 60 to 1 in 80	D.	1 in 80 to 1 in 120

29.

According to Telford

A.	the size of stone at the centre varied from 160 mm to 200 mm and gradually decreased to 75 mm to 125 mm towards the haunches	B.	the central 6 metre width of the road was covered with two layers of stones about 100 mm and 50 mm respectively
C.	the size of stone used was of 63 mm diameter	D.	all of the above

30.

In Telford construction, the side portions were made up of only one layer of broken stones and levelled off to give a camber not greater than

A.	1 in 40	B.	1 in 60
C.	1 in 80	D.	1 in 120