Civil Engineering
GATE CE exam:gate PYQs
Build your understanding with focused practice from past exam papers.
Questions 451–460 of 1300. Imported answers require independent review unless marked reviewed.
Question 31
Open questionCENAT1 markNeeds review
Consider the filet-welded lap joint shown in the figure (not to scale). The length of the weld shown is the effective length. The welded surfaces meet at right angle. The weld size is 8 mm, and the permissible stress in the weld is 120 MPa. What is the safe load P (in kN, round off to one decimal place) that can be transmitted by this welded joint?
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Open questionCE-2NAT1 markNeeds review
The steady-state temperature distribution in a square plate ABCD is governed by the 2-dimensional Laplace equation. The side AB is kept at a temperature of 100 °C and the other three sides are kept at a temperature of 0 °C. Ignoring the effect of discontinuities in the boundary conditions at the corners, the steady-state temperature at the center of the plate is obtained as T₀ °C. Due to symmetry, the steady-state temperature at the center will be same (T₀ °C), when any one side of the square is kept at a temperature of 100 °C and the remaining three sides are kept at a temperature of 0 °C. Using the principle of superposition, the value of T₀ is __________ (round off to two decimal places).
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Open questionCENAT1 markNeeds review
A drained direct shear test was carried out on a sandy soil. Under a normal stress of 50 kPa, the test specimen failed at a shear stress of 35 kPa. The angle of internal friction of the sample is _____________ degree (round off to the nearest integer).
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Open questionCE-2NAT1 markNeeds review
An unconfined compression strength test was conducted on a cohesive soil. The test specimen failed at an axial stress of 76 kPa. The undrained cohesion (in kPa, in integer) of the soil is __________.
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Open questionCENAT1 markNeeds review
A canal supplies water to an area growing wheat over 100 hectares. The duration between the first and last watering is 120 days, and the total depth of water required by the crop is 35 cm. The most intense watering is required over a period of 30 days and requires a total depth of water equal to 12 cm. Assuming precipitation to be negligible and neglecting all losses, the minimum discharge (in m³/s, rounded off to three decimal places) in the canal to satisfy the crop requirement is ____________________.
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Open questionCE-2NAT1 markNeeds review
The pressure in a pipe at X is to be measured by an open manometer as shown in figure. Fluid A is oil with a specific gravity of 0.8 and fluid B is mercury with a specific gravity of 13.6. The absolute pressure at X is __________ kN/m² (round off to one decimal place). [Assume density of water as 1000 kg/m³ and acceleration due to gravity as 9.81 m/s² and atmospheric pressure as 101.3 kN/m²]
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Open questionCENAT1 markNeeds review
The ordinates of a one-hour unit hydrograph for a catchment are given below:
| t (hour) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Q (m³/s) | 0 | 9 | 21 | 18 | 12 | 5 | 2 | 0 |
Use the principle of superposition, a D-hour unit hydrograph for the catchment was derived from this one-hour unit hydrograph. The ordinates of the D-hour unit hydrograph were obtained as 3 m³/s at t = 1 hour and 10 m³/s at t = 2 hour. The value of D (in integer) is _________________________.
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Open questionCE-2NAT1 markNeeds review
For the elevation and temperature data given in the table, the existing lapse rate in the environment is ____ °C/100 m (round off to two decimal places).
Elevation from ground level (m) | Temperature (°C) |
|---|---|
5 | 14.2 |
325 | 16.9 |
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Open questionCENAT1 markNeeds review
For a horizontal curve, the radius of a circular curve is obtained as 300 m with the design speed as 15 m/s. If the allowable jerk is 0.75 m/s³, what is the minimum length (in m, in integer) of the transition curve?____________________
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Open questionCE-2NAT1 markNeeds review
If the size of the ground area is 6 km × 3 km and the corresponding photo size in the aerial photograph is 30 cm × 15 cm, then the scale of the photograph is 1 : ____ (in integer).
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