ISRO Scientist or Engineer Civil 2020

An ISJC 200 Channel section has the folllowing details width of flange 70 mm depth of channel 200 mm, thickness of flange $$t_{f}$$ =7.1mm,moment of inertia $$I_{xx} =1161.2cm^{4}$$ The distance of shear centre from the centre of the web will be

Relative humidity is :

As per the Indian Standard specification for drinking water (IS 10500 : 2012) What is the maximum possible acceptable limit of Flouride (as F ), in $$\frac{mg}{l}$$:

A trapezoidal channel with the base of 6m and the side slope of two horizantal to one vertical conveys water at 17 $$\frac{m^{3}}{sec}$$ with a depth of 1.5 m. The flow situation in the channel is

Consider the following statement associated with the critcal path :
1.critical path is the most important sequence of activities which has no float and which determine the project completion period
2.critical path is the largest path with shortest duration with in which the project can be completed
3.The difference between early start time and late finish time must be equal to the activity duration
4.can not pass through dummy activity
which is among the above are correct statements

Peak Gust wind speed as per IS 875 (Part 3)-2015 ,for design loads is defined as :

As per IS(part 3):2015, while considering the wind load acting in direction normal to the individual structural element or cladding unit , the following is not considered :

As per Indian Standards linear dynamic analysis shall be performed to obtain the design lateral force for all bulidings other than:

A tube of aluminium of 40 mm external diameter and 20 mm internal diameter is snugly fitted on a solid steel rod of 20 mm diameter .The composite bar is subjected to an axial compressive force P.If the stress on steel bar is 70 $$\frac{N}{mm^{2}}$$, the stress in the aluminium tube and the corresponding the value of P will be :$$(E for steel : 2 \times 10^{5} \frac{N}{mm^{2}} and E for aluminium 7 \times 10^{4} \frac{N}{mm^{2}} )$$

A timber beam of rectangular section of length 8 m is simply supported .The beam carries a uniformly distributed load of 12 $$\frac{kN}{m}$$, over the entire length and a point load of 10KN at 3m from the left support .If the depth is two times the width and the stress in the timber is not to exceed 10 $$\frac{N}{mm^{2}}$$, what is the suitable depth of the section?