Question 1

In a wet soil mass air occupies one sixth of its volume and water occupies one third of its volume. the void ratio of the soil is

Question 2

The porosity of certain soil sample was found to be 80% and its specific gravity was 2.7, the critical hydraulic gradient will be estimates as

Question 3

A clay sample has a Void ratio of 0.5 in dry state and specific gravity of solids = 2.70 its shrinkage limit will be

Question 4

In a catchment, there are six rain gauge stations which recorded rainfall data with a coefficient of variation of 30 %. Then the percentage accuracy of the existing network in the estimation of average depth of rainfall over the basin is _____

Question 5

Crashing a project in terms of its duration would result in 1. An increase in the indirect cost. 2. A decrease in the indirect cost. 3. A decrease in the direct cost. 4. An increase in the direct cost. of these statements________

Question 7

A sand sample has a bulk density of 20 kN/m3 and degree of saturation of 70%. if the specific gravity of its sand as 2.65, the value of critical hydraulic gradient for the soil will be

Question 8

A soil has a liquid limit of 60% plastic limit of 35% and shrinkage limit of 20% and it has a natural moisture content of 50% the liquidity index of soil is

Question 9

What return period would you adopt in the design of the culvert on a drain if you can accept only 5 % risk of flooding in the 25 years of expected life of the culvert

Question 10

The time which results in the least possible construction cost of an activity is known as

Question 11

A uniform collapsible sand stratum, 2.5 m thick has specific gravity of its sand as 2.65, with a natural void ratio of 0.65. The hydraulic head required to cause quick collapsible sand condition is

Question 13

Phytometer is used for estimating

Question 14

What does a Work Breakdown Structure (WBS) “break down?”

Question 15

Cost classification can be done in ________.

Question 17

The configuration of flow nets depends upon

Question 18

The natural void ratio of a sand sample is 0.6 and its density index is 0.6. if its void ratio in the loosest state is 0.9, then the void ratio in the densest state will be

Question 19

Rainfall simulator is used for measuring _______

Question 20

A construction schedule is prepared after collecting

Question 24

Given that coefficient of curvature =1.4, D30=3 mm, D10=0.6 mm. Based on this information of particle size distribution for uses as subgrade, this soil will be taken be

Question 25

The isohyets for annual rainfall over a catchment basin indicate the following. (isohyet, area): (45-55 cm, 500 km2); (55-65, 1000 km2) and (65-75, 2000 km2). The approximate average annual precipitation depth (in cm) over the basin is

Question 27

Which of the following option doesn’t come in chemical admixtures?