Civil Engineering Gate 2016 Set-1 Questions with Answer

Ques 40 GATE 2016 SET-1


A seepage flow condition is shown in the figure. The saturated unit weight of the soil γsat=18 kN/m3. Using unit weight of water, γw=9.81 kN/m3, the effective vertical stress (expressed in kN/m2) on plane X-X is _______.


(65.4) is the correct answer.

Ques 41 GATE 2016 SET-1


A drained triaxial compression test on a saturated clay yielded the effective shear strength parameters as c'=15 kPa and ϕ'=22°. Consolidated Undrained triaxial test on an identical sample of this clay at a cell pressure of 200 kPa developed a pore water pressure of 150 kPa at failure. The deviator stress (expressed in kPa) at failure is _______.


(105) is the correct answer.

Ques 42 GATE 2016 SET-1


The direct runoff hydrograph in response to 5 cm rainfall excess in a catchment is shown in the figure. The area of the catchment (expressed in hectares) is


(21.6) is the correct answer.

Ques 43 GATE 2016 SET-1


The type of flood routing (Group 1) and the equation(s) used for the purpose (Group II) are given below.

Group I Group II
P. Hydrologic flood routing 1. Continuity equation
Q. Hydraulic flood routing 2. Momentum equation
3. Energy equation
The correct match is

A

P-1; Q-1, 2 & 3

B

P-1; Q-1 & 2 only

C

P-1 & 2; Q-1 only

D

P-1 & 2; Q-1 & 2


(b) is the correct answer.

Ques 44 GATE 2016 SET-1


The pre-jump Froude Number for a particular flow in a horizontal rectangular channel is 10. The ratio of sequent depths (i.e., post-jump depth to pre-jump depth) is


(13.65) is the correct answer.

Ques 45 GATE 2016 SET-1


A concrete gravity dam section is shown in the figure. Assuming unit weight of water as 10 kN/m3 and unit weight of concrete as 24 kN/m3, the uplift force per unit length of the dam (expressed in kN/m) at PQ is ________.


(1050) is the correct answer.

Ques 46 GATE 2016 SET-1


Seepage is occurring through a porous media shown in the figure. The hydraulic conductivity values (k1, k2, k3) are in m/day.

The seepage discharge (m3/day per m) through the porous media at section PQ is

A

7/12

B

1/2

C

9/16

D

3/4


(b) is the correct answer.

Ques 47 GATE 2016 SET-1


A 4 m wide rectangular channel, having bed slope of 0.001 carries a discharge of 16 m3/s. Considering Manning's roughness coefficient =0.012 and g=10 m/s2 the category of the channel slope is

A

horizontal

B

mild

C

critical

D

steep


(b) is the correct answer.

Ques 48 GATE 2016 SET-1


A sector gate is provided on a spillway as shown in the figure. Assuming g=10 m/s2, the resultant force per meter length (expressed in kN/m) on the gate will be


(127) is the correct answer.

Ques 49 GATE 2016 SET-1


A hydraulically efficient trapezoidal channel section has a uniform flow depth of 2 m. The bed width (expressed in m) of the channel is


(2.31) is the correct answer.

Ques 50 GATE 2016 SET-1


The Optimistic Time (O), Most likely Time (M) and Pessimistic Time (P) (in days) of the activities in the critical path are given below in the format O-M-P.

The expected completion time (in days) of the project is


(37) is the correct answer.

Ques 51 GATE 2016 SET-1


Consider the plane truss with load P as shown in the figure. Let the horizontal and vertical reactions at the joint B be HB and VB, respectively and VC be the vertical reaction at the joint C.

Which one of the following sets gives the correct values of VB, HB and VC?

A

VB=0; HB=0; VC=P

B

VB=P/2; HB=0; VC=P/2

C

VB=P/2; HB=P(sin 60°); VC=P/2

D

VB=P; HB=P(cos 60°); VC=0


(a) is the correct answer.

Ques 52 GATE 2016 SET-1


In shear design of an RC beam, other than the allowable shear strength of concrete (τc) there is also an additional check suggested in IS 456-2000 with respect to the maximum permissible shear stress (τc mix). The check for τc mix is required to take care of

A

additional shear resistance from reinforcing steel

B

additional shear stress that comes from accidental loading

C

possibility of failure of concrete by diagonal tension

D

possibility of crushing of concrete by diagonal compression


(d) is the correct answer.

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