GATE CE topic:infrastructure PYQs & Answers — Page 31

Questions 301–310 of 1300. Imported answers require independent review unless marked reviewed.

The following table gives various components of Municipal Solid Waste (MSW) and a list of treatment/separation techniques.

Component of MSW	Treatment/separation technique
P - Ferrous metals Q - Aluminum and copper R - Food waste S - Cardboard	i - Incineration ii - Rapid composting iii - Eddy current separator iv - Magnetic separator

The CORRECT match is

Your answerChoose one option.

P-iii, Q-iv, R-i, S-ii

P-iv, Q-iii, R-ii, S-i

P-iii, Q-iv, R-ii, S-i

P-iv, Q-iii, R-i, S-ii

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The structural design method that DOES NOT take into account the safety factors on the design loads is

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working stress method.

load factor method.

ultimate load method.

limit state method.

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A car is traveling at a speed of 60 km/hr on a section of a National Highway having a downward gradient of 2%. The driver of the car suddenly observes a stopped vehicle on the car path at a distance 130 m ahead, and applies brake. If the brake efficiency is 60%, coefficient of friction is 0.7, driver’s reaction time is 2.5 s, and acceleration due to gravity is 9.81 m/s², the distance (in meters) required by the driver to bring the car to a safe stop lies in the range

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126 to 130

41 to 45

33 to 37

75 to 79

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The contact pressure distribution shown in the figure belongs to a

Diagram for Civil Engineering question 22

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rigid footing resting on a cohesionless soil.

rigid footing resting on a cohesive soil.

flexible footing resting on a cohesionless soil.

flexible footing resting on a cohesive soil.

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As per the International Civil Aviation Organization (ICAO), the basic runway length is increased by x (%) for every y (m) raise in elevation from the Mean Sea Level (MSL). The values of x and y, respectively, are

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7% and 300 m

5% and 200 m

4% and 500 m

10% and 1000 m

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Which one of the following saturated fine-grained soils can attain a negative Skempton’s pore pressure coefficient (A)?

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Quick clays

Normally-consolidated clays

Lightly-consolidated clays

Over-consolidated clays

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Which one of the following statements related to bitumen is FALSE?

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Kinematic viscosity is a measure of resistance to the flow of molten bitumen under gravity.

Softer grade bitumen possesses higher softening point than hard grade bitumen.

Flash point of bitumen is the lowest temperature at which application of a test flame causes vapors of the bitumen to catch an instant fire in the form of flash under specified test conditions.

Ductility test is carried out on bitumen to test its adhesion property and ability to stretch.

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The following figure shows a plot between shear stress and velocity gradient for materials/fluids P, Q, R, S, and T. Which one of the following options is CORRECT?

Diagram for Civil Engineering question 24

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P → Ideal fluid; Q → Ideal Bingham plastic R → Non-Newtonian fluid; S → Newtonian fluid

P → Real solid; Q → Ideal Bingham plastic S → Newtonian fluid; T → Ideal Fluid

P → Ideal Fluid; Q → Ideal Bingham plastic R → Non-Newtonian fluid; T → Real solid

P → Real solid; Q → Newtonian fluid R → Ideal Bingham plastic; T → Ideal Fluid

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If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by

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90°

180°

270°

360°

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What is the CORRECT match between the air pollutants and treatment techniques given in the table?

Air pollutants	Treatment techniques
P - NO₂	i - Flaring
Q - SO₂	ii - Cyclonic separator
R - CO	iii - Lime scrubbing
S - Particles	iv - NH₃ injection

Your answerChoose one option.

P-i, Q-ii, R-iii, S-iv

P-ii, Q-i, R-iv, S-iii

P-ii, Q-iii, R-iv, S-i

P-iv, Q-iii, R-i, S-ii

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GATE CE topic:infrastructure PYQs

Question 21

Question 21

Question 22

Question 22

Question 23

Question 23

Question 24

Question 24

Question 25

Question 25