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GATE Civil 2019 Full Syllabus Test 1

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Question 1

The area between the two isohyetes 45 cm and 55 cm is 100 km², and that between 55 cm and 65 is 150 km². What is the average depth of annual precipitation over the total basin area of 250 km²?

Question 2

A 100 ha watershed received rainfall at a rate of 5 cm/hr for 2 hours. If the runoff generated by the storm was at the rate of 1 m³/s for 10 hours, then the runoff coefficient for the watershed was

Question 3

The total irrigation depth of water, required by a certain crop in its entire growing period of 150 days is 25.92 cm. The culturable command area for adistributory channel is 100000 ha. The distributory channel shall be designed for a discharge

Question 4

A ship's model of scale 1 : 100 had a wave resistance of 1 kg at its design speed. The corresponding wave resistance in prototype will be

Question 5

Cinsider the 2-D steady flow field

V=(2xy-5y²)i+(4x²+3xy)j

The number of stagnation points in the flow field is

Question 6

Determine the final volume (in mm³) of steel bar which has 4 m length, 30 mm wide and 20 mm thick and which has an axial pull of 30 kN in the direction of its length. Take, E= 2×10⁵ N/mm² and Poisson’s ratio is 0.3

Question 7

The load of 100 kN is applied to a cylinder of 1m length and 50mm diameter along its vertical axis. Modulus of elasticity and poissons ratio of the cylinder material are 200 GPa & 0.3 respectively. Determine the volumetric strain (10^-4) in the cylinder.

Question 8

An unconfined aquifer spread on an area of 2 km². The specific yeild of the aquifer is 0.20. The discharge was obtained by continuous pumping 48hrs from the aquifer which resulted in a drawdown of of 4m. Find the discharge obtained.

Question 9

A-6 hour storm occurred over a catchment of 1.8 km² area and the total rainfall observed was 24 cm. An infiltration capacity curve prepared had the initial infiltration capacity of 2 cm/hr and attained a constant value of 0.5 cm/hr after 3 hours of rainfall with a Harton's equation constant, k = 5 hr^-1. An IMD pan installed in the catchment indicated a decrease of 0.8 cm in the water level during 6 hours of its operation, then the runoff from the catchment is _______ cm.
[Take pan coefficient = 0.7 and neglect other losses]

Question 10

For border strip method of irrigation 0.04 ha area is irrigated from tubewell with a discharge of 0.02 cumec. The infiltration capacity of soil may be taken as 5cm/h and the average depth of flow on the field as 10 cm. The time required to irrigate a strip of land of area 0.04 ha will be

Question 11

Accordind to Koshla’s theory of independent variables for seapage below hydraulic structure, the exit gradient gradient in the absence of downstream sheet pile is

Question 12

A triangular channel has a side slope of 2 horizontal: 1vertical and is laid on a longitudinal slope of 1 in 2000. The normal depth (in m) required to pass a discharge of 0.50 m³/s is:
[Assume Manning’s coefficient n = 0.015]

Question 13

Consider the following statements. Which of the following statements are CORRECT?
A) A flow net is applicable to irrotational fluid flow.
B) For a given boundary, a flow net is applicable to one chosen direction of flow; if the flow is reversed the flow net will change.
C) A flow net is so constructed that the size of the mesh is inversely proportional to the local velocity.
D) For a given boundary, a flow net is the same whether the flow is in one direction or the other.

Question 14

A 20cm well penetrated directly into a confined aquifer of permeability 4.4x10^-4 m/s is with a thickness of 12m. Under steady state condition, the radius of influence is 150m and the drawdown is 3m. The discharge is

Question 15

Consider the following statements:
1) Strength of structural concrete is absolutely dependent upon water cement ratio.
2) Increase in temperature during curing period improves the strength, especially for aluminous cements.
3) The concern for onset of fatigue in concrete can be overcome by increasing design loads in limit state design.
4) Even though concrete gains strength after 28 days, such increase is not considered at design stage.
Which of these statements are correct?

Question 16

W_p and W_f are the weight of the cylinder containing partially and fully compacted concrete. If the compacting factor (W_p/ W_f ) is 0.95, the workability of concerte is:

Question 17

Consider the following statements:
1) Brickwork will have high water tightness.
2) Brickwork is preferred for monument structures.
3) Bricks resist fire better than stones.
4) Bricks of good quality shall have thin mortar bonds.
Which of the above statements are correct?

Question 18

A derived quantity s is given by s = 23.9/8.34, maximum error will be-

Question 19

A 60 cm diameter sewer is required to flow at 0.4 depth on a grade ensuring a degree of self-cleansing as that obtained at full depth at a velocity of 85 cm/s. Take Manning’s coefficient = 0.015.
Find the grade for full depth

Question 20

The average normal flow of traffic on cross roads A and B during design period are 600 and 450 PCU per hour. The saturation flow value on these roads are estimated as 1450 and 1100 PCU per hour respectively. The cycle time for a two phase signal from Webster's method for all red time of 13 sec is _______ sec.

Question 21

For steady state flow to a fully penetrating well in a confined aquifer, the drawdown at radial distances 1.56m and 1.80m from the well have been measured as 4.92m and 5.45m respectively, for a pumping rate of 36 cumec. The transmissivity (m²/s) of the aquifer is equal to _______ .

Question 22

A municipal corporation is required to treat 1000 m³/day of water. It is found that an overflow rate of 20 in/day will produce a satisfactory removal of the discrete suspended particles at a depth of 3 m. The diameter (in meters, rounded to the nearest integer) of a circular settling tank designed for the removal of these particles would be______

Question 23

A catchment is idealized as a 25 km x 25 km square. It has five rain gauges, one at each corner and one at the center, as shown in the figure.

During a month, the precipitation at these gauges is measured as G₁ = 300 mm, G₂ = 285 mm, G₃ = 272mm, G₄ = 290mmand G₅ =288mm. The average precipitation (in mm, up to one decimal place) over the catchment during this month by using the Thiessen polygon method is ______

Question 24

Water is pumped at a steady uniform flow rate of 0.01 m³/s through a horizontal smooth circular pipe of 100 mm diameter. Given that the Reynolds number is 800 and g is 9.81 m/s², the head loss (in meters, up to one decimal place) per km length due to friction would be_____

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