GATE CE format:nat PYQs & Answers — Page 12

Questions 111–120 of 495. Imported answers require independent review unless marked reviewed.

Topic practice 495 questionsPage 12 of 50

An inverted T-shaped concrete beam (B1) in the figure, with centroidal axis X – X, is subjected to an effective prestressing force of 1000 kN acting at the bottom kern point of the beam cross-section. Also consider an identical concrete beam (B2) with the same grade of concrete but without any prestressing force.

Diagram for Civil Engineering question 50

The additional cracking moment (in kN.m) that can be carried by beam B1 in comparison to beam B2 is __________ (rounded off to the nearest integer).

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The horizontal beam PQRS shown in the figure has a fixed support at point P, an internal hinge at point Q, and a pin support at point R. A concentrated vertically downward load (V) of 10 kN can act at any point over the entire length of the beam.

The maximum magnitude of the moment reaction (in kN.m) that can act at the support P due to V is ________ (in integer).

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The initial cost of an equipment is Rs. 1,00,000. Its salvage value at the end of accounting life of 5 years is Rs. 10,000. The difference in depreciation (in Rs.) computed using ‘double-declining balance method’ and ‘straight line method’ of depreciation in Year-2 is __________ (in positive integer).

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A concrete column section of size 300 mm × 500 mm as shown in the figure is subjected to both axial compression and bending along the major axis. The depth of the neutral axis (

) is 1.1 times the depth of the column, as shown.

Diagram for Civil Engineering question 51

The maximum compressive strain (

) at highly compressive extreme fiber in concrete, where there is no tension in the section, is ________×

(rounded off to 2 decimal places).

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A slab panel with an effective depth of 250 mm is reinforced with 0.2% main reinforcement using 8 mm diameter steel bars. The uniform center-to-center spacing (in mm) at which the 8 mm diameter bars are placed in the slab panel is __________ (rounded off to the nearest integer).

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The table shows the activities and their durations and dependencies in a project.

Activity	Duration (Days)	Depends on
A	8	-
B	4	A
C	4	B
D	4	C, L
F	4	A
G	4	F
H	6	G, L
K	10	A
L	6	F, K

The total duration (in days) of the project is ________ (in integer).

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The total primary consolidation settlement (

) of a building constructed on a 10 m thick saturated clay layer is estimated to be 50 mm. After 300 days of the construction of the building, primary consolidation settlement was reported as 10 mm. The additional time (in days) required to achieve 50% of

will be ____________________ (rounded off to the nearest integer).

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A homogeneous earth dam has a maximum water head difference of 15 m between the upstream and downstream sides. A flownet was drawn with the number of potential drops as 10 and the average length of the element as 3 m. Specific gravity of the soil is 2.65. For a factor of safety of 2.0 against piping failure, void ratio of the soil is ________ (rounded off to 2 decimal places).

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An infinite slope is made up of cohesionless soil with seepage parallel to and up to the sloping surface. The angle of slope is 30° with respect to horizontal ground surface. The unit weights of the saturated soil and water are 20 kN/m

and 10 kN/m

, respectively.

The minimum angle of shearing resistance of the soil (in degrees) for the critically stable condition of the slope is ____________ (rounded off to the nearest integer).

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The in-situ percentage of voids of a sand deposit is 50%. The maximum and minimum densities of sand determined from the laboratory tests are 1.8 g/cm

and 1.3 g/cm

, respectively. Assume the specific gravity of sand as 2.7.

The relative density index of the in-situ sand is __________ (rounded off to 2 decimal places).

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GATE CE format:nat PYQs

Question 50

Question 50

Question 51

Question 51

Question 52

Question 52

Question 53

Question 53

Question 54

Question 54