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Practice Test: Civil Engineering (CE)- 7 - Civil Engineering (CE) MCQ


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30 Questions MCQ Test - Practice Test: Civil Engineering (CE)- 7

Practice Test: Civil Engineering (CE)- 7 for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Practice Test: Civil Engineering (CE)- 7 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Practice Test: Civil Engineering (CE)- 7 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Practice Test: Civil Engineering (CE)- 7 below.
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Practice Test: Civil Engineering (CE)- 7 - Question 1

Choose the most approximate word from the options given below to complete the following sentence.

If I had known that you were coming, I _______ you at the airport

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 1

The sentence talks about a past incident and a condition has been mentioned. Thus option 2 fits here correctly. 'Would have' is the correct tense to be used here. Option 1 is illogical. 'Would' must be used here and not 'will' as it is in the past tense. Past perfect tense is incorrect here.

Practice Test: Civil Engineering (CE)- 7 - Question 2

Choose the most approximate word from the options given below to complete the following sentence.

I believe in the _____ of positive thinking thus always recommend these books to my clients.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 2

The word that fits here is a noun thus options 3 and 4 are eliminated. The form should be singular as for abstract nouns we do not use the plural form. Option 1 is thus the correct answer.

The word powerful is an adjective and 'empowering' is a verb.

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Practice Test: Civil Engineering (CE)- 7 - Question 3

Consider a circle of radius r. Fit the largest possible square inside it and the largest possible circle inside the square. What is the radius of the innermost circle?

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 3

The radius of outer circle = r

∴ Diagonal of square = 2r

Side of square (a)=√2r

Now, the radius of the inner circle = r

Practice Test: Civil Engineering (CE)- 7 - Question 4

A bird files along the three sides of a field in the shape of an equilateral triangle at speeds of 3, 6, 8 km/hr respectively. The average speed of the bird is

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 4

Average speed = Total distance/Total time

Total distance = a + a + a = 3a

Total time = 

Average speed = 

Practice Test: Civil Engineering (CE)- 7 - Question 5

Choose the most appropriate words from the options given below to fill in the blanks.

She was ______ to travel abroad and _____ in the field of commerce as per her wishes.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 5

The sentence mentions a person doing something as per her wishes thus the first word must be a positive reaction. 'Restive' which means 'restless' and 'jinxed' which means 'cursed' are incorrect here. Between options 1 and 3,the word 'elated' which means 'too happy' and the word 'venture' which means 'undertake a risky or daring journey or course of action' fit here correctly. The word 'cease' means 'stop' and does not convey a proper meaning. Thus option 3 is the correct answer.

Practice Test: Civil Engineering (CE)- 7 - Question 6

In a 1600 m race around a circular track of length 400 m, the faster runner and the slowest runner meet at the end of the sixth minute, for the first time after the start of the race. All the runners maintain uniform speed throughout the race. If the faster runner runs at twice the speed of the slowest runner. Find the time taken by the faster runner to finish the race.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 6

As, the faster runner is twice as fast as the slowest runner, the faster runner would have complete two rounds by the time the slowest runner completes one round.

Their first meeting takes place after the fastest runner takes 6 min to complete two rounds and the slowest runner completes one round.

Time taken to complete one round by fastest runner = 6/2 = 3 minutes

Rounds needed to complete the race = 1600/400 = 4

Time taken to complete the race = 4 × 3 = 12 min

Practice Test: Civil Engineering (CE)- 7 - Question 7

Select the pair that best expresses a relationship similar to that expressed in the pair:

Horse: Foal

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 7

The young one of a horse is called a foal. Similarly, the young one of a goose is known as gosling. Thus, option 2 contains the pair that best expresses a relationship similar to that expressed in the given pair. In all the other pairs, the first word expresses the male form of the latter.

Practice Test: Civil Engineering (CE)- 7 - Question 8

Read the following passage and find out the inference stated through passage.

Juvenile delinquency is also termed as Teenage Crime. Basically, juvenile delinquency refers to the crimes committed by minors. These crimes are committed by teenagers without any prior knowledge of how it affects the society. These kind of crimes are committed when children do not know much about outside world.

Which of the following Inferences is correct with respect to above passage? 

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 8

Since teenagers here have tender age and commit crimes unknown to its consequences, clearly they should not be treated as any criminal. They need to be taught so that they can make difference between right and wrong and do not commit these crimes in future. Hence inference in option 1 is correct.

Practice Test: Civil Engineering (CE)- 7 - Question 9

If n and y are positive integers and 450 y = n³, which of the following must be an integer? 

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 9

450 y = n³ implies that 450 y is the cube of an integer. 

When we prime-factorize the cube of an integer, we get 3 (or a multiple of 3) of every prime factor.

8 is the cube of an integer because 8 = 2³ = 2*2*2.

Thus, when we prime-factorize 450 y, we need to get at least 3 of every prime factor. 

Here's the prime factorization of 450 y:

450 y = 2 * 3² * 5² * y 

Since 450 provides only one 2, two 3's, and two 5's, and we need at least 3 of every prime factor, the missing prime factors must be provided by y. Thus, y must provide at at least two more 2's, one more 3, and one more 5. 

Smallest possible case: 

y = 2² * 3 * 5

Practice Test: Civil Engineering (CE)- 7 - Question 10

The graph shows cumulative frequency % of research scholars and the number of papers published by them. Which of the following statements is true?

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 10

In this problem, cumulative frequency is given, so converting into frequency

From the table, it is clear that option b, i.e.

60% of the scholars published at least 2 papers is correct.

Practice Test: Civil Engineering (CE)- 7 - Question 11

For which value of x, the following matrix A is a singular matrix.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 11

A matrix is singular if and only if its determinant is zero.

x(3+1)−2(x2+1)=0

 

−2x2+4x−2 = 0

x2−2x+1 = 0

(x−1)2 = 0

x = 1 

Practice Test: Civil Engineering (CE)- 7 - Question 12

Find the laplace transform of t2sin (2t).

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 12

According to formula, L(tf(t)) =

Here, f(t) = sin (2t) ⇒ F(s) = 

∴ L(t2sin (2t)) =  

Practice Test: Civil Engineering (CE)- 7 - Question 13

Consider the following function:

f(x) at x=2 is

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 13

ii) (4 - x)x=2 = 2

Hence at x = 2, f(x) is continuous

∴ f(x) is not differentiable.

Practice Test: Civil Engineering (CE)- 7 - Question 14

   value of b = ?

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 14

The given limit is in 0/0 form, So

Applying L hospitals rule

⇒ log b - 1 = -1 - log b

⇒ 2 log b = 0

⇒ b = 1

Practice Test: Civil Engineering (CE)- 7 - Question 15

The integrating factor of equation y log y dx + (x – log y) dy = 0 is

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 15

y log y dx + (x – log y) dy = 0

It is a Leibnitz’s equation in x.

Integrating factor = 

Practice Test: Civil Engineering (CE)- 7 - Question 16

For the Real Beam shown in the figure below, identify the correct conjugate beam

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 16

In context of the Real and conjugate Beam:

(i) The fixed end of the real beam will become the free end of the conjugate beam

(ii) The diagram of the Real beam will be loading diagram for the conjugate beam

(iii) Hogging moment diagram (-ve) in the real beam will give downward loading in the conjugate beam

As end A is fixed in the real beam, so it will be free in conjugate beam. Similarly for end B in real beam will become fixed end in conjugate beam. The  diagram of the real beam will become loading diagram for the conjugate beam. 

*Answer can only contain numeric values
Practice Test: Civil Engineering (CE)- 7 - Question 17

A 25 cm long rod of uniform rectangular section of size 10 mm (wide) and 1.4 mm thickness is bend to form an arc of a circle. If the longitudinal strain at the surface of the rod is 0.00084, the central displacement of the rod will be _____ mm. Neglect second order quantities.


Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 17

Concept:

Using the relations/ formula


At surface y = ymax , ε = εmax

εsurface

Calculation:

εsurface = 0.00084

L = 250 mm

ymax  = = 0.7mm

εsurface =

εsurface =

εsurface = 0.00084

0.00084 = 

δ = 9.375 mm

Practice Test: Civil Engineering (CE)- 7 - Question 18

Consider the following statements and Identify the correct option with regard to provisions of IS 456: 2000:

P. The minimum stripping time for props to slab spanning over 4.5 m is 7 days

Q. The minimum stripping time for props to arches spanning over 6 m is 14 days.

R. To ensure strength of Designed concrete mix, Random sampling procedure is adopted

S. When bar of two different diameter are to be spliced, the lap length shall be calculated on the basis of bar of the larger diameter.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 18

As per IS 456 : 2000,

(i) The minimum stripping time for props to slab spanning up to 4.5 m and spanning over 4.5 m is 7 days and 14 days respectively.

(ii) The minimum stripping time for props to aches spanning up to 6 m and spanning over 6 m is 14 days and 21 days respectively.

(iii) When bar of two different diameter are to be spliced the lap length shall be calculated on the basis of bar of larger diameter.

(iv) A random sampling procedure shall be adopted to ensure that each concrete batch shall have a reasonable chance of being tested that is, the sampling should be spread over the entire period of concreting and cover all mixing units.

Practice Test: Civil Engineering (CE)- 7 - Question 19

For a truss shown in figure below. Find the force in the member GC ______ kN.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 19

Member AB and AG are co-linear,

So FAB = FAG = 0 kN

Now removing the member AB and AG. Now member BC and BG are also collinear. So, FBC = FBG = 0 kN

Consider Joint G

∑Fx = 0

FGC Sin 63.43° = 0

FGC = 0 kN

∑FV = 0

20 + FGF + FGC Cos 63.43° = 0

FGF = - 20 kN 

*Answer can only contain numeric values
Practice Test: Civil Engineering (CE)- 7 - Question 20

A tension member 1SLB 250 @ 273.7 N/m is connected with two 200 wide and 12 mm thick plate with two lines of 16 mm diameter bolt in each flange. If the net section area is 2800 mm2 , then the tensile strength (in kN) on the basis of net area cracking of ISLB section using Fe 410 grade of steel will be _________. (Take Partial Safety Factor as 1.25)


Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 20

Concept:

Tensile strength of a section, (Tdn)

where An = net section area, mm2

fu = ultimate strength of the material

γm = pantial safety factor.

Calculation:

For Fe 410 grade of steel

fu = 410 N/mm2, fy = 250 N/mm2

γm = 1.25

Tdn = 826.56 kN.

*Answer can only contain numeric values
Practice Test: Civil Engineering (CE)- 7 - Question 21

A circular footing of diameter 4m is loaded with 200 kN/m2 of load intensity. The vertical stress increment (kN/m2) at 6m depth below the footing will be?


Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 21

Concept:

Vertical stress increment is given by:

r = radius of circular area

z = depth of soil stata

q = uniformly distributed circular load

Calculation:

z = 6 m

q = 200 kN/m2

σz = 29.2 kN/m2

*Answer can only contain numeric values
Practice Test: Civil Engineering (CE)- 7 - Question 22

A square footing of size 3m × 3m is placed at 2m depth below the Ground surface. If the permissible settlement of the foundation rests on sand strata is 40 mm and the final corrected S.P.T Number is 28. The net allowable bearing pressure from settlement consideration according to Peck, Hanson equation will be _____kN/m2

Assume water table is at 1m below the base of the footing


Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 22

Concept:

Using Peck, Hanson equation:

The net allowable bearing pressure (kN/m2) is given by

qa(net) = 0.41 N S CW

N = Final corrected SPT Number

Cw = Water table correction factor

S = Permissible Settlement of foundation (mm)

Calculation:

N = 28

S = 40 mm

Cw = 0.8

qa(net) = 0.41 × 28 × 40 × 0.8

qa(net) = 367.36 kN/m2

Practice Test: Civil Engineering (CE)- 7 - Question 23

The liquid limit and plastic limit of the soil is 55% and 25% respectively. If the natural water content of the soil is 30%. The correct statement is

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 23

Consistency Index (IC) of the soil is:

IP = WL – WP

Wn = 30%

WL = 55%

WP = 25%

Liquidity Index (IL) will be:

Wn = 30%

WP = 25%

WL = 55%

As the soil is in Plastic stage of consistency because both liquidity index and consistency index lies in between 0 to 1.

*Answer can only contain numeric values
Practice Test: Civil Engineering (CE)- 7 - Question 24

A capillary rise in a glass tube when immersed in oil having surface tension 0.0825 N/m at 20° C and specific gravity of 0.96 is 6.25 mm. For 30% increase in height of capillarity, the diameter of glass tube should be decreased by ______ (percentage)

Take angle of contact between glass tube and oil will be zero


Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 24

Concept:

Height of capillary rise is given by:

Where,

σ = Surface tension of fluid at 20° C

ρ = Density of fluid (kg/m3)

D = Diameter of the glass tube

h = height of capillary rise/fall

Calculation:

σ = 0.0825 N/m

θ = 0°

ρ = 1000 × 9.6 = 960 kg/m3

Diameter (D) = 5.60 mm

For 30% increase in “h”

hI = 8.125 mm

DI = 4.31 mm

% Decrease 

Practice Test: Civil Engineering (CE)- 7 - Question 25

As per IS 10500:2012, the total concentration of manganese (as Mn) and iron (as Fe) for drinking water purpose shall not exceed 

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 25

As per IS10500:2012, the total concentration of manganese (as Mn) and iron (as Fe) for drinking water purpose shall not exceed 0.3 mg/L.

Practice Test: Civil Engineering (CE)- 7 - Question 26

A water sample analysis produces alkalinity and hardness of 200 mg/L and 250 mg/L as Caco3 respectively. The carbonate and non-carbonate hardness respectively will be

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 26

Concept:

Carbonate hardness = minimum of {Alkalinity, Total Hardness}

Total hardness = Carbonate Hardness + Non-carbonate Hardness.

Calculation:

Carbonate Hardness= minimum of {200 mg/L , 250 mg/L}

Carbonate Hardness = 200 mg/L

Non – Carbonate Hardness = Total Hardness – Carbonate Hardness

= 250 – 200

= 50 mg/L

Practice Test: Civil Engineering (CE)- 7 - Question 27

The ultimate BOD of waste water is 300 mg/L and the reaction rate constant (to the base ‘e’) at 20°C is 0.3585/day, then the 5 day BOD will be.

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 27

Concept:

Ultimate BOD = Lo

BOD5­ = 5day BOD, of water/waste water

BOD at any time ‘t’ (Lt)

Lt = Lo(1−e−kDt

Where Lo = ultimate BOD

KD = Rate constant

Calculation:

Lt = 300 × (1 – e-0.3585 × t)

L5 = BOD5 = 300 × (1 – e-0.3585 × 5)

= 250 mg/L

Practice Test: Civil Engineering (CE)- 7 - Question 28

As per IRC 37: 1984, the practical capacity values suggested for the purpose of design of two lane roads with 7.0 m wide carriageway and earthen shoulders in both direction is

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 28

Capacity of different types of roads in rural areas.

Practice Test: Civil Engineering (CE)- 7 - Question 29

In order to allow smooth movement of Locomotive with a maximum permissible speed of 120 kmph on a Broad Gauge track in transition curve, the radius of curvature by Martin’s formula will be

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 29

Concept:

We know that by Martin’s formula for a Broad Gauge track in a transition curve. For speed greater than 100 kmph.

Speed. 

Where V is speed in kmph

R is the radius of curvature in m.

Calculation:

Practice Test: Civil Engineering (CE)- 7 - Question 30

In an open traverse PQR. If the Bearing of the line PQ and RQ is 60° and N50° W respectively. The included angle ∠PQR will be

Detailed Solution for Practice Test: Civil Engineering (CE)- 7 - Question 30

Bearing of PQ = 60°

Bearing of RQ = N50° W (WCB)

Bearing of RQ = 360° - 50° = 310° (QBS)

Bearing of line QR = Bearing (RQ) – 180°

Bearing of line QR = 310° - 180° = 130°

Bearing of line QP = 180° + Bearing of PQ = 180° + 60° = 240°

∠PQR = (Bearing)QP = - (Bearing)QR

∠PQR = 240° - 130°

∠PQR = 110°

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