ISRO Scientist or Engineer Civil 2020

While aligning a hill road with a ruling gradient of 6%, a horizantal curve of radius 75 cm is encountered ,necessitating grade compensation.The compensated gradient at the curve will be

If the sewage from a city is $$95 \times 10^{6}$$l/day and the average five day BOD is 300 mg/l ,the population equivalent of the city is :(assume 5 day BOD percapita at $$20^\circ C$$ = 0.075 kg/day

A pipe 1500 m long and 200 mm in diameter is laid at a slope of 1 in 200 for the first half length and a slope of 1 in 100 for the second half length . The pressure at the upper and lower ends are respectively 1 $$\frac{kg}{cm^{2}}$$ (98.1 $$\frac{kN}{m^{2}}$$) and 0.5 $$\frac{kg}{cm^{2}}$$ (49.05 \frac{kN}{m^{2}}). If the coefficient of friction f=0.04, the discharge in $$\frac{cum}{sec}$$ will be

In an unconfined compression test , a sample clay 100 mm long and 50 mm in diameter fails under a load of 150 N at 10% strain . what is the shearing resistance taking in to account the effect of change in cross section of the sample ?

The density of a fully saturated specimen of clay having a water content of 40% is 1.88 $$\frac{gm}{cc}$$. on oven drying , the density drops to 1.74 $$\frac{gm}{cc}$$.The shrinkage limit of the specimen will be $$(adopt \rho_{w}=1.0 \frac{gm}{cc})$$

A camera equipped with a 152 mm focal length lens is used to take a vertical photograph from a flying height of 2780 m above mean sea level .If the terrain is flat and located at an elevation of 500 m, the scale of photograph will be,

Rainfall intensities in $$\frac{mm}{hr}$$ at half an hour interval during a 4-hour storm were :
5,9,20,13,6,8,16 and 3 $$\frac{mm}{hr}$$.If the corressponding observed runoff is 27.45 millions $$m^{3}$$ from a basin having an area of 1830 $$km^{2}$$? The $$\phi$$ index of the storm is

An activated sludge tank is 30 m and 9 m wide and has liquid depth of 4 m.The influent sewage flow rate is 3.5 MLD .The primary effluent has BOD of 130 $$\frac{mg}{l}$$ and suspended load of 15 $$\frac{mg}{l}$$. The MLSS concentration in the aeration tank is 1800 $$\frac{mg}{l}$$. The corressponding $$\frac{F}{M}$$ ratio is

As per BIS 456 -2000 deformed bars may be used with out end anchorage provided

A propped cantilever beam of length L is subjected to a moment M at the propped end .The support momment at the fixed end will be