Civil Engineering GATE 2015 Set-2 Questions with Answer

Ques 53 Structural Engineering

Prying forces are:

Ques 54 Structural Engineering

A steel member M has reversal of stress due to live loads, whereas another member N has reversal of stress due to wind load. As per IS 800: 2007, the maximum slenderness ratio permitted is:

Ques 55 Structural Engineering

In a system, two connected rigid bars AC and BC are of identical length, L, with pin supports at A and B. The bars are interconnected at C by a frictionless hinge. The rotation of the hinge is restrained by a rotational spring of stiffness, k. The system initially assumes a straight line configuration, ACB. Assuming both the bars as weightless, the rotation at supports, A and B, due to a transverse load, P applied at C is:

Ques 56 Structural Engineering

A simply supported reinforced concrete beam of length 10 m sags while undergoing shrinkage. Assuming a uniform curvature of 0.004 m^-1 along the span, the maximum deflection (in m) of the beam at mid-span is _______.

Ques 57 Structural Engineering

A steel strip of length, L = 200 mm is fixed at end A and rests at B on a vertical spring of stiffness, k = 2 N/mm. The steel strip is 5 mm wide and 10 mm thick. A vertical load, P = 50 N is applied at B, as shown in the figure. Considering E = 200 GPa, the force (in N) developed in the spring is _______.

Ques 58 Structural Engineering

A simply supported beam AB of span, L = 24 m is subjected to two wheel loads acting at a distance, d = 5 m apart as shown in the figure below. Each wheel transmits a load, P = 3 kN and may occupy any position along the beam. If the beam is an I-section having section modulus, S = 16.2 cm³, the maximum bending stress (in GPa) due to the wheel loads is _______.

Ques 59 Structural Engineering

According to the concept of Limit State Design as per IS 456: 2000, the probability of failure of a structure is _______.

Ques 60 Structural Engineering

In a pre-stressed concrete beam section shown in the figure, the net loss is 10% and the final pre-stressing force applied at X is 750 kN. The initial fiber stresses (in N/mm²) at the top and bottom of the beam were:

Ques 61 Structural Engineering

A fixed end beam is subjected to a load, W at 1/3rd span from the left support as shown in the figure. The collapse load of the beam is:

Ques 62 Transportation Engineering

A superspeedway in New Delhi has among the highest super-elevation rates of any track on the Indian Grand Prix circuit. The track requires drivers to negotiate turns with a radius of 335 m and 33° banking. Given this information, the coefficient of side friction required in order to allow a vehicle to travel at 320 km/h along the curve is:

Ques 63 Transportation Engineering

The following statements are made related to the lengths of turning lanes at signalised intersections:
(i) 1.5 times the average number of vehicles (by vehicle type) that would store in turning lane per cycle during the peak hour.
(ii) 2 times the average number of vehicles (by vehicle type) that would store in turning lane per cycle during the peak hour.
(iii) Average number of vehicles (by vehicle type) that would store in the adjacent through lane per cycle during the peak hour.
(iv) Average number of vehicles (by vehicle type) that would store in all lanes per cycle during the peak hour.
As per the IRC recommendations, the correct choice for design length of storage lanes is:

Ques 64 Transportation Engineering

The relation between speed u (in km/h) and density k (number of vehicles / km) for a traffic stream on a road is u = 70 - 0.7k. The capacity on this road is _______ vph (vehicles / hour).

Ques 65 Transportation Engineering

In Marshall method of mix design, the coarse aggregate, fine aggregate, fines and bitumen having respective values of specific gravity 2.60, 2.70, 2.65 and 1.01, are mixed in the relative proportions (% by weight) of 55.0, 35.8, 3.7 and 5.5 respectively. The theoretical specific gravity of the mix and the effective specific gravity of the aggregates in the mix respectively are: