Steel Structure Design

1.The effective length of a compression member of length L held in position and restrained in direction at one end and effectively restrained in direction but not held in position at the other end, is

L 0.67 L 0.85 L 2 L

2.The ratio of shearing stress to shearing strain within elastic limit, is known as

modulus of elasticity shear modulus of elasticity bulk modulus of elasticity tangent modulus of elasticity

3.For determination of allowable stress in axial compression, Indian Standard Institution has adopted

Euler's formula Rankine formula Engesser formula Secant formula

4.The method of design of steel framework for greatest rigidity and economy in weight, is known as

simply design semi-rigid design fully rigid design none of these.

5. If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is

6 8 10 12

Railways

1.Mr. W. Simms, the consulting Engineer to the Government of India recommended the gauge for Indian railways

1.435 m as adopted in England 1.800 m as per Indian conditions 1.676 m as a compromise gauge 1.000 m as a standard gauge

2.If absolute levels of rails at the consecutive axles A, B, and C separated by 1.8 metres are 100.505 m, 100.530 m, and 100.525 m respectively, the unevenness of rails, is

0.065 m 0.055 m 0.045 m 0.035 m

3.A CST-9 sleeper consists of

two inverted triangular pots on either side of rail seat a central plate with a projected key and box on the top of plate a single two way key provided on the gauge side to hold the rail to sleeper all the above

4.Charles Vignoles invented the flat footed rails in

1814 1836 1846 1873

5.To design a cross-over between parallel tracks, the required components are :

two switch, points, two acute angle crossings and two check rails two switch points, two acute angle crossings and four check rails two switch points, two acute angle crossings and six check rails none of these.