Civil Engineering GATE 2013 Questions with Answer

Ques 53 Structural Engineering

Beam PQRS has internal hinges in spans PQ and RS as shown. The beam may be subjected to a moving distributed vertical load of maximum intensity 4 kN/m of any length anywhere on the beam. The maximum absolute value of the shear force (in kN) that can occur due to this loading just to the right of support Q shall be:

Ques 54 Structural Engineering

A rectangular concrete beam 250 mm wide and 600 mm deep is pre-stressed by means of 16 high tensile wires, each of 7 mm diameter, located at 200 mm from the bottom face of the beam at a given section. If the effective pre-stress in the wires is 700 MPa, what is the maximum sagging bending moment (in kNm) (correct to 1-decimal place) due to live load that this section of the beam can withstand without causing tensile stress at the bottom face of the beam? Neglect the effect of dead load of beam.

Ques 55 Structural Engineering

A propped cantilever made of a prismatic steel beam is subjected to a concentrated load P at mid span as shown.

Ques 56 Surveying

The latitude and departure of a line AB are +78 m and -45.1 m, respectively. The whole circle bearing of the line AB is:

Ques 57 Surveying

Following bearings are observed while traversing with a compass. After applying the correction due to local attraction, the corrected fore bearing of line BC will be:

Ques 58 Surveying

A theodolite is set up at station A and a 3 m long staff is held vertically at station B. The depression angle reading at 2.5 m marking on the staff is 6°10'. The horizontal distance between A and B is 2200 m. Height of instrument at station A is 1.1 m and R.L. of A is 880.88 m. Apply the curvature and refraction correction, and determine the R.L. of B (in m).

Ques 59 Transportation Engineering

Select the strength parameter of concrete used in design of plain jointed cement concrete pavements from the following choices:

Ques 60 Transportation Engineering

It was observed that 150 vehicles crossed a particular location of a highway in a duration of 30 minutes. Assuming that vehicle arrival follows a negative exponential distribution, find out the number of time headways greater than 5 seconds in the above observation?

Ques 61 Transportation Engineering

For two major roads with divided carriageway crossing at right angle, a full clover leaf interchange with four indirect ramps is provided. Following statements are made on turning movements of vehicles to all directions from both roads. Identify the correct statement:

Ques 62 Transportation Engineering

The percent voids in mineral aggregate (VMA) and percent air voids (Vv) in a compacted cylindrical bituminous mix specimen are 15 and 4.5, respectively. The percent voids filled with bitumen (VFB) for this specimen is:

Ques 63 Transportation Engineering

For a portion of a national highway where a descending gradient of 1 in 25 meets with an ascending gradient of 1 in 20, a valley curve needs to be designed for a vehicle traveling at 90 kmph based on the following conditions. (i) headlight sight distance equal to the stopping sight distance (SSD) of a level terrain considering the length of the valley curve > SSD. (ii) comfort condition with allowable rate of change of centrifugal acceleration = 0.5 m/sec³. Assume total reaction time = 2.5 seconds; coefficient of longitudinal friction of the pavement = 0.35; height of the headlight of the vehicle = 0.75 m; and beam angle = 1°. What is the length of the valley curve (in m) based on the headlight sight distance condition?

Ques 64 Transportation Engineering

For a portion of a national highway where a descending gradient of 1 in 25 meets with an ascending gradient of 1 in 20, a valley curve needs to be designed for a vehicle traveling at 90 kmph based on the following conditions. (i) headlight sight distance equal to the stopping sight distance (SSD) of a level terrain considering the length of the valley curve > SSD. (ii) comfort condition with allowable rate of change of centrifugal acceleration = 0.5 m/sec³. Assume total reaction time = 2.5 seconds; coefficient of longitudinal friction of the pavement = 0.35; height of the headlight of the vehicle = 0.75 m; and beam angle = 1°. What is the length of the valley curve (in m) based on the comfort condition?