Civil Engineering Gate 2019 Set-1 Questions with Answer

Ques 27 GATE 2019 SET-1

Consider the pin-jointed plane truss shown in the figure (not drawn to scale). Let RP, RQ and RR denote the vertical reactions (upward positive) applied by the supports at P, Q, and R, respectively, on the truss. The correct combination of (RP, RQ, RR) is represented by

Ques 28 GATE 2019 SET-1

Assuming that there is no possibility of shear buckling in the web, the maximum reduction permitted by IS 800-2007 in the (low-shear) design bending strength of a semi-compact steel section due to high shear is

Ques 29 GATE 2019 SET-1

In the reinforced beam section shown in the figure (not drawn to scale), the nominal cover provided at the bottom of the beam as per IS 456-2000, is

Ques 30 GATE 2019 SET-1

The interior angles of four triangles are given below: Which of the triangles are ill-conditioned and should be avoided in Triangulation surveys?

Ques 31 GATE 2019 SET-1

The coefficient of average rolling friction of a road is f_r and its grade is +G%. If the grade of this road is doubled, what will be the percentage change in the braking distance (for the design vehicle to come to a stop) measured along the horizontal (assume all other parameters are kept unchanged)?

Ques 32 GATE 2019 SET-1

An isolated concrete pavement slab of length L is resting on a frictionless base. The temperature of the top and bottom fibre of the slab are T_t and T_b, respectively.
Given: the coefficient of thermal expansion = α and the elastic modulus = E. Assuming T_t > T_b and the unit weight of concrete as zero, the maximum thermal stress is calculated as _______.

Ques 33 GATE 2019 SET-1

In a rectangular channel, the ratio of the velocity head to the flow depth for critical flow condition, is

Ques 34 GATE 2019 SET-1

If the path of an irrigation canal is below the bed level of a natural stream, the type of cross-drainage structure provided is

Ques 35 GATE 2019 SET-1

A catchment may be idealised as a rectangle. There are three rain gauges located inside the catchment at arbitrary locations. The average precipitation over the catchment is estimated by two methods: (i) Arithmetic mean (PA) and (ii) Thiessen polygon (PT). Which one of the following statements is correct?

Ques 36 GATE 2019 SET-1

A retaining wall of height H with smooth vertical backface supports a backfill inclined at an angle β with the horizontal. The backfill consists of cohesionless soil having angle of internal friction φ. If the active lateral thrust acting on the wall is Pa, which one of the following statements is TRUE?

Ques 37 GATE 2019 SET-1

In a soil specimen, the total stress, effective stress, hydraulic gradient, and critical hydraulic gradient are σ, σ', i, and i_c, respectively.
For initiation of quicksand condition, which one of the following statements is TRUE?

Ques 38 GATE 2019 SET-1

Which one of the following is a secondary pollutant?

Ques 39 GATE 2019 SET-1

For a given loading on a rectangular plain concrete beam with an overall depth of 500 mm, the compressive strain and tensile strain developed at the extreme fibers are of the same magnitude of 2.5 × 10^-4.
The curvature in the beam cross-section (in m^-1, round off to 3 decimal places), is _______.