# GATE Civil Engineering Online Test, GATE CE Online Test 2020

## GATE Civil Engineering Online Test Series 1, GATE CE Test

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**GATE Civil Engineering Online Test Series 1**. GATE 2020 CE Online Test, GATE Mock Test Exam 2020. GATE Civil Engineering Full online mock test paper is free for all students. Take GATE 2020 Exams Online Test, GATE 2020 Quiz. GATE 2020 CE Series 1 online Test 2020 in English, Take GATE 2020 Mock Test in English from below . You may also find other Subjects GATE Online Test in this page. Here we provide Graduate Aptitude Test in Engineering Question and Answers 2020. This GATE CE Online test Series 1 is very helpful for exam preparation. The GATE Civil Engineering Mock Test 2020 is now available for all candidates, who will be appearing in the national level engineering exams 2020. Now take GATE Civil Engineering Online Test Series 1 by Click on Below “**Start Quiz Button**”

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- Question 1 of 25
##### 1. Question

Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random. What is the probability that the drawn ticket has a number which is a multiple of 3 or 7?

CorrectFavourable cases = 3, 6, 9, 12, 15, 18, 7, 14 = 8 cases

Required Probability = 8/20 = 2/5IncorrectFavourable cases = 3, 6, 9, 12, 15, 18, 7, 14 = 8 cases

Required Probability = 8/20 = 2/5 - Question 2 of 25
##### 2. Question

In a zoo, there are 42 animals in one sector, 34 animals in the second sector and 20 animals in the third sector. Out of these, 24 graze in sector one and also in sector two, 10 graze in both sector two and sector three and 12 graze in both sector one and sector three. These figures also include four animals who graze in all the three sectors. If all the animals are now transported to another zoo, find the total number of animals transported.

Correct

Let I, II, III be the sets of animals grazing in 1^{st}, 2^{nd}and 3^{rd}sectors of zoo respectively.

Total number of animals = 10 + 20 + 4 + 8 + 4 + 6 + 2 = 54Incorrect

Let I, II, III be the sets of animals grazing in 1^{st}, 2^{nd}and 3^{rd}sectors of zoo respectively.

Total number of animals = 10 + 20 + 4 + 8 + 4 + 6 + 2 = 54 - Question 3 of 25
##### 3. Question

If x cos y + y cos x = π and initial value of x and y is equal to 0, then y’ (0) =

Correctx cosy + y cosx = π

Differentiating both side with respect to x

cosy + x (-siny) dy/dx + cosx dy/dx – y sinx = 0

dy/dx = (y sinx- cosy)/(cosx – x siny)

Putting here x= 0 and y = 0

dy/dx = (-1)/1 = -1Incorrectx cosy + y cosx = π

Differentiating both side with respect to x

cosy + x (-siny) dy/dx + cosx dy/dx – y sinx = 0

dy/dx = (y sinx- cosy)/(cosx – x siny)

Putting here x= 0 and y = 0

dy/dx = (-1)/1 = -1 - Question 4 of 25
##### 4. Question

If f(x) = 3x – 5 and f(g(x)) = 2x, then find the value of g(x).

CorrectGiven that f(x) = 3x – 5 and f (g(x)) = 2(x)

∴ 3. G(x) – 5 = 2x

∴ g(x) = (2x + 5)/3.IncorrectGiven that f(x) = 3x – 5 and f (g(x)) = 2(x)

∴ 3. G(x) – 5 = 2x

∴ g(x) = (2x + 5)/3. - Question 5 of 25
##### 5. Question

If x + y = K is normal to y

^{2}= 12x, then K isCorrectWe know that x + y = K (slope = – 1) is normal to the given curve, it means it is perpendicular to the tangent at the point (x, y). Hence the slope of the tangent must be 1.

y = mx+c is a tangent to y^2 = 4ax, iff. c=a/m.Putting a = 3, m =1, we get c = 3.

Tangent is y=x+3.

Solving the equations of parabola and tangent, we get pts (3,6) and(3,-6)

This means that k= – 3 or k = 9

IncorrectWe know that x + y = K (slope = – 1) is normal to the given curve, it means it is perpendicular to the tangent at the point (x, y). Hence the slope of the tangent must be 1.

y = mx+c is a tangent to y^2 = 4ax, iff. c=a/m.Putting a = 3, m =1, we get c = 3.

Tangent is y=x+3.

Solving the equations of parabola and tangent, we get pts (3,6) and(3,-6)

This means that k= – 3 or k = 9

- Question 6 of 25
##### 6. Question

The smallest interval [a, b], such that dx ∈ [a, b] is given by

CorrectIncorrect - Question 7 of 25
##### 7. Question

Choose the odd one out.

CorrectCorrect Answer : Map study

IncorrectCorrect Answer : Map study

- Question 8 of 25
##### 8. Question

Match List I with List II and select the correct answer using the codes given below the lists:

**List I****List II**A. Camber 1. Subsurface drainage B. Joints 2. Surface drains C. Tack coat 3. Transverse slope D. Sand drains 4. Bituminous roads 5. Concrete roads CorrectCorrect Answer : A – 3, B – 5, C – 4, D – 1

IncorrectCorrect Answer : A – 3, B – 5, C – 4, D – 1

- Question 9 of 25
##### 9. Question

Which one of the following pairs in not correctly matched?

CorrectCorrect Answer : Check valve – To check water flow in all directions

IncorrectCorrect Answer : Check valve – To check water flow in all directions

- Question 10 of 25
##### 10. Question

The atmosphere extends upto a height of 10,000 km. It is divided into the following four thermal layers:

1. Mesosphere 2. Stratosphere 3. Thermosphere 4. Troposphere

The correct sequence of these layers starting from the surface of the earth upwards isCorrectCorrect Answer : 4, 2, 1, 3

IncorrectCorrect Answer : 4, 2, 1, 3

- Question 11 of 25
##### 11. Question

Pick up the correct statement:

CorrectCorrect Answer : Confined aquifers are also known as flowing wells.

IncorrectCorrect Answer : Confined aquifers are also known as flowing wells.

- Question 12 of 25
##### 12. Question

Pick up the correct statement from the following.

CorrectCorrect Answer : The water supply pipes carry pure water free from solid particles.

IncorrectCorrect Answer : The water supply pipes carry pure water free from solid particles.

- Question 13 of 25
##### 13. Question

In Chezy’s formula, V = C √rs is used for calculating the velocity of flow in circular sewer running full. The value of hydraulic mean radius may be taken as

CorrectCorrect Answer : D/4

IncorrectCorrect Answer : D/4

- Question 14 of 25
##### 14. Question

In New mark’s influence chart for stress distribution, there are ten concentric circles and ten radial lines. The influence factor of the chart is:

CorrectIncorrect - Question 15 of 25
##### 15. Question

The consistency index of a soil is defined as the ratio of:

CorrectCorrect Answer : liquid limit minus the natural water content to the plasticity index of the soil

IncorrectCorrect Answer : liquid limit minus the natural water content to the plasticity index of the soil

- Question 16 of 25
##### 16. Question

Which of the following conditions must be obeyed by the topmost flow line through an earthen dam section?

1. Having atmospheric pressure

2. Normal to the downstream slope

3. Normal to the upstream slope

4. Tangent to the slope at the exit pointCorrectCorrect Answer : 2 and 4

IncorrectCorrect Answer : 2 and 4

- Question 17 of 25
##### 17. Question

Pick up the correct statement from the following.

CorrectCorrect Answer : All the above

IncorrectCorrect Answer : All the above

- Question 18 of 25
##### 18. Question

The run off a drainage basin is

CorrectCorrect Answer : Precipitation – ground water accretion – initial recharge

IncorrectCorrect Answer : Precipitation – ground water accretion – initial recharge

- Question 19 of 25
##### 19. Question

To estimate the magnitude of a flood with a return period of T years, Gumbel`s distribution method requires the following data pertaining to annual food series:

(i) mean value

(ii) standard deviation

(iii) length of record

(iv) coefficient of skewCorrectCorrect Answer : (i), (ii) and (iii)

IncorrectCorrect Answer : (i), (ii) and (iii)

- Question 20 of 25
##### 20. Question

The ordinate of the Instantaneous Unit Hydrograph (IUH) of a catchment at any time t, is

CorrectCorrect Answer : the slope of the S- curve with effective rainfall intensity of 1 cm/hr

IncorrectCorrect Answer : the slope of the S- curve with effective rainfall intensity of 1 cm/hr

- Question 21 of 25
##### 21. Question

Which of the following will prove to be the most economical section of a circular channel for the maximum discharge?

CorrectCorrect Answer : All the above

IncorrectCorrect Answer : All the above

- Question 22 of 25
##### 22. Question

In a standing wave flume, the depth of flow in the throat region

CorrectCorrect Answer : should be equal to the critical depth

IncorrectCorrect Answer : should be equal to the critical depth

- Question 23 of 25
##### 23. Question

The relationship:

dp/dx = dr/dy is valid forCorrectCorrect Answer : uniform flow

IncorrectCorrect Answer : uniform flow

- Question 24 of 25
##### 24. Question

Match List I with List II and select the correct answer using the codes given below the lists:

**List I****List II**A. Rotational flow 1. A fluid motion in which stream lines are concentric circles B. Vortex flow 2. The fluid particles moving in concentric circles may not rotate about their mass centre C. Free vortex 3. The fluid particles moving in concentric circles may rotate D. Forced vortex 4. Flow near a curved solid boundary CorrectCorrect Answer : A – 4, B – 1, C – 2, D – 3

IncorrectCorrect Answer : A – 4, B – 1, C – 2, D – 3

- Question 25 of 25
##### 25. Question

In steady laminar flow of a liquid through a circular pipe of internal diameter D, carrying a constant discharge, the hydraulic gradient is inversely proportional to:

CorrectCorrect Answer : D

^{2}IncorrectCorrect Answer : D

^{2}