Objective solved questions civil engineering.

Objective solved questions civil engineering.
civil engineering objective type questions answers
Civil Engineering Solved Question Papers
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Free online Civil Engineering Questions and quiz
Based on UPSC Engineering services exam 2010

1. The live load for a sloping roof with slope 15°, where access is not provided to the roof,
is taken as
A 0.65 kN/rn²
B. 0.75 kN/ rn²
C. 1.35 kN/ rn²
D. 1.50 kN/ rn²

2. The batten plates used to connect the components of a built-up-column are designed to resist
A Longitudinal shear only
B. Transverse shear only
C. Longitudinal shear and moment arising from transverse shear
D. Vertical shear only

3.The duration of any activity in case of a PERT programme is calculated as a weighted average of three time estimates namely the optimistic time t_o , the pessimistic time t_p and the most probable time t_m which is given as

4. In ISMC 400 channels placed back to backat a spacing of 26 cm carry an axial load of
160 tonnes. The lacing system should be designed to resist a transverse shear of
A 16 tonnes
B. 12 tonnes
C. 8 tonnes
D. 4 tonnes

5. Consider the following statements of network:
1. Only one time estimate is required for each activity.
2. Three time estimates for each activity.
3. Time and cost are both controlling factors.
4. It is build-up of event-oriented diagram.
Which of the above statements are correctly applicable to CPM network?
A 1 and 3
B. 1 and 2
C. 2 and 4
D 3 and 4

6. If a simply supported concrete beam, prestressed with a force of 2500 kN, is designed by load balancing concept for an effective span of 10 m and to carry a total load of 40 kN/m, the central dip of the cable profile should be
A 100mm
B. 200 mm
C. 300mm
D. 400 mm

7. A circular shaft which has a diameter of 100 mm is subjected to a torque of 5 kN-m. The shear stress, in N/mm² , induced in the shaft would be

A160/Π
B.120/Π
C.125/Π
D.80/Π

8. Match List I with List II and select the correct answer using the code given below the lists:
List I
(Type)
A. Single angle in roof trusses
B. Double angles in roof trusses
C. Single I section in columns
D. Double I section in columns

List II
(Recommended
Slenderness ratio)
1. 80 — 150
2. 30—60
3. 100- 180
4. 60 — 120

Codes

A B C D
A 3 4 1 2
B. 2 4 1 3
C. 3 1 4 2
D.2 1 4 3
9.

10. Consider the following statements relating to structural analysis
1. Flexibility matrix and its transpose are equal.
2. Elements of main diagonal of stiffness matrix are always positive.
3. For unstable structures, coefficient in leading diagonal matrix can be negative.
Which of the above statements is/are correct?
A 1, 2 and 3
B. 1 and 2 only
C. 2 and 3 Only
D. 3 only

11.

12. Poisson’s ratio is defined as the ratio of
A Longitudinal stress and longitudinal strain
B. Lateral strain and longitudinal strain
C. Longitudinal stress and lateral stress
D. Lateral stress and longitudinal stress

13. Consider the following conditions with respect to plastic analysis :‘
1. Sum of internal and external forces and moments must be equal to zero.
2. At ultimate collapse load, the number of plastic hinges must be just enough to form a mechanism.
Which of the above conditions is/are correct?
A 1 only
B. 2 only
C. Neither 1 nor 2
D. Both land2

14. The base plate of a roof truss is attached to the concrete pier with the help of 16 mm diameter mild steel anchor bolts of grade f_y = 250 MPa. What is the maximum pull the base can be subjected to, if the root area of bolt = 0.75 times shank area ?
A 30 kN
B. 67.5 kN
C. 90 kN
D. 120 kN

15. The maximum longitudinal pitch allowed in
bolted joints of tension members is
A 16 times the diameter of the bolt
B. 32 times the diameter of the bolt
C..16 times the thickness of the plate
D. 32 times the thickness of the plate

16. A father notes that when his teenage daughter uses the telephone she takes no loss than 5 minutes for a call but sometimes as much as an hour. 15 minutes calls are more frequent than calls of any other duration. If the daughter’s calls were to be represented as an activity in PERT project, the expected duration of each phone call is?

A 89/6 minutes
B. 101/6 minutes
C.113/6 minutes
D.125/6 minutes

17

18.A propped cantilever of span L is subjected to a concentrated load at mid span. If M_p, is
the plastic moment capacity of the beam, the value of collapse load will be

A. 12M_p/L
B. 8M_p/L
C 6M_p/L
D. 4M_p/L

19. In PERT analysis, the time estimate of
activities correspond to
A Normal distribution
B. Poisson’s distribution
C.β distribution
D. Binomial distribution

20. Consider the following statements:
1. Shape factor
2. Length of the beam
3. Type of loading
4. Yield strength of material
Which of these affect the influence length of
plastic hinge in a beam?
A. 1 only .
B. 1 and 3
C. 2 and 3
D. 3 and 4

21

22. Consider the following statements:
1. PERT is activity-oriented and adopts deterministic approach.
2. CPM is event-oriented and adopts probabilistic approach.
3. PERT is event-oriented and adopts probabilistic approach.
Which of the above statements is/are correct?
A 1 only
B. 1 and 2
C. 2 and 3
D. 3 only

23

24.PERT calculator yield a project length of 60 weeks with a variance of 9 weeks. Probability factor, corresponding to 95% probability is 1.647; then the number of weeks required to complete, and project with a probability of 95% is,
A 60.94
B. 62.94
C. 64.94
D. 66.94

25. For an I-beam, the shape factor is 1.12; the factor of safety in bending stress is 1.5. If the allowable stress is increased by 20% for wind or ,earthquake loads, then the load factor is
A 1.10
B. 1.25
C. 1.35
D 1.40

26. A steel plate is 300 mm wide and 10 mm thick. A rivet of nominal diameter 18 mm is driven. The net sectional area of the plate is
A 1800 mm² .
B. 2805 mm²
C. 2820 mm²
D 3242 mm²

27. At a section along the span of a welded plate girder, in which the web is spliced, the bending moment, at a section is M. The girder is comprised of top flange; web and bottom flange plates all of equal areas. The share of the bending moment taken by splice plates would be
A M
B. M/L
C. M/7
D M/13

28. Consider the following stipulations in designing a laced column
1. Single lacing systems on opposite planes shall preferably be in the same direction so that one is the shadow of the other.
2. Lacing bar should be a flat section.
3. The slenderness ratio of the lacing bars for compression shall not exceed l80.
4. Laced compression members are to be provided with tie plates at ends.
Which of the above observations is/are correct?
A 1 only
B. 1 and 3
C. 2 and 4,
D. 1 and 4

29. At the location of a plastic hinge,
A Radius of curvature is infinite
B. Curvature is infinite
C. Moment is infinite
D. Flexible stress is infinite

30

31. Consider the following statements:
Entrainment of air in concrete is done so as to
1. Increase the workability.
2. Increase the strength.
3. Increase the resistance to freezing and thawing
Which of the above statements is/are correct?
A. 1, 2 and 3
B. 1 only
C. 1 and 3 only
D. 3 only

32. Consider the following statements is work breakdown structure
1. It is a graphical representation of entire programme.
2. The Top-Down approach to planning is adopted.
3. The Down-Top approach to planning is adopted.
4. It is suitable for complex projects.
Which of the above statements is/are correct?
A. 1 only
B. 2 and 4
C. 3 and 4
D. 4 only

33. If P is the percentage of water required for determination of normal consistency of cement, then percentage of water to be added for determination of initial setting time is
A. 0.70P
B. 0.75 P
C. Q.80 P
D. 0.85 P

34. Consider the following statements regarding the. slope of cost-time curve:
1. It is given by difference between normal cost and crash cost divided by crash time.
2. It is given by difference between crash cost and normal cost divided by difference between crash time and normal time.
3. It is given by difference of crash cost and normal cost divided by normal time.
4. It is given by ‘crash cost not divided by crash time.
Which of the above statements is/are correct?
A. 1 only
B.2 and 3
C. 2 only
D. 3 and 4

35. Consider the following statements:
1. The crushing strength of concrete is fully governed by water-cement ratio.
2. Vibration has no effect on strength of concrete at high water-cement ratios.
3. Workability of concrete is affected by improper grading of aggregates.
Which of the above statements.is/are correct?
A. 1,2 and 3
B. 2 and 3 only
C. 2 only
D.3 only

36. The load carrying capacity of a column designed by working stress method is
500 kN. The ultimate collapse load of the column is
A 500 kN
B. 662.5 kN
C, 750kN
D.1100 kN

37. Consider the following statements:
1. Strength of concrete cube is inversely proportional to water-cement ratio.
2. A rich concrete mix gives a higher. strength than a lean concrete mix since it has more cement content.
3. Shrinkage cracks on concrete surface are due to excess water in mix.
Which of the above statements is/are correct?
A 1, 2 and 3
B. 1 and 2 only
C. 2 only
D. 2 and 3 only

38. A beam of symmetrical. I-section, made of structural steel has an overall depth. of 300 mm. If the flange stresses developed at the top and bottom of the beam are 1200 kg/cm² . and 300 kg/cm² . respectively, then the depth of neutral axis from the top of the beam would be
A 250mm
B.240mm
C. 200 mm
D. 180 mm

39. Consider . the following statements:
Admixtures are added to concrete to
1. Increase its strength.
2. Reduce heat of hydration.
3. Delay the setting of cement.
4. Reduce water-cement ratio.
Which of the above statements is/are correct?
A 1 only
B. 1 and 2
C. 2 and 3
D. 3 and 4.

40. A building contractor discovers from his record that in the last 200 slab castings his mixer machine broke down 21 times. During each breakdown, he had to pay on an average about Rs. 2,500 for idle labour. A standby mixer machine, if hired on the day of slab casting, would cost him Rs. 200 per day. The expected loss is more than the mitigation expense of hiring the mixer by
A Rs. 151.50
B. Rs. 241.50
C. Rs. 262.50
D. Rs. 283.50

41. A steel beam is replaced by a corresponding aluminium beam of same cross-sectional shape and dimensions, and is subjected to same loading. The maximum bending. stress will
A Be unaltered
B. Increase
C. Decrease
D.Vary in proportion to their modulus of elasticity

42

The distribution factors for members AE and AC of the box section are
A 0.5 and 0.5
B. 0.6 and 0.4
C. 0.25 and 0.75
D. 1 and zero

43

44.Consider the following activities:
1. Pouring of concrete
2. Erection of formwork
3. Curing of concrete
4. Removal of formwork
What is the correct sequence on a network of these activities?
A 1—2—3—4
B.2— 1—4—3
C.2—1—3 —4
D.1—3—2—4

45. Which one of the following is relevant to Activity on Node (AON)?
A. Dummy activities may be many
B. There will be no dummy activities
C. It is used for quite complex project
D. It is easier to associate with time flow of activities

46. Consider the following statements about the
air entraining admixture in concrete:
1. Improve workability
2. Improve durability
3. Reduce segregation during placing
4. Decrease concrete density
Which of the above statements are correct?
A. 1,2,3and4
B. 1 and 2only
C. 2 and 3 only
D. 3 and 4 only.

47.

The RC slab, simply supported on all edges as in above figure, is subjected to a total UDL of 12 kN/m². The maximum shear force! unit length along the edge ‘BC’ is
A 16kN
B. 12kN
C. 8kN
D. 30kN

48.

The above figure indicates a project network; the number at each activity represents its normal duration in days. The critical path is along
A 1—2—3—6—7— 8
B. 1—2 —4—5—7 — 8
C. l—2——5—7— 8
D. 1—2—4—6—7 — 8

49.

50

In the above network, the duration of activities are written along their arrows. The critical path of the activities is along
A 1—2—3—5—7—8
B. 1—2—3—6—7—8 .
C. 1—2—4—5—7—8
D. 1—2—3—4—5—7—8

Answers:

1	A
2	C
3	B
4	D
5	A
6	B
7	D
8	B
9	D
10	B
11	A
12	B
13	D
14	A
15	C
16	D
17	B
18	C
19	C
20	B
21	A
22	D
23	D
24	C
25	D
26	B
27	C
28	D
29	B
30	D
31	C
32	B
33	D
34	C
35	B
36	C
37	A
38	B
39	B
40	#
41	A
42	A
43	D
44	C
45	B
46	A
47	A
48	B
49	C
50	A

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objective civil engineering

objective civil engineering
civil engineering objective questions
civil engineering objective papers
Objective MCQ Civil Engineering

1. A unit of equipment costs Rs. 25 Lakh and has a life of 5 years with no salvage value. The average annual cost of this equipment based on straight-line depreciation is

A Rs. 25 Lakh

B. Rs. 10 Lakh

C. Rs. 15 Lakh

D. Rs. 20 Lakh

2. Consider the following characteristics regarding timber

I. Stronger variety

2. Ability to take very smooth finis

3. Toughness

4. Difficult to season

Which of the above characteristic is/are essential for timber to be used as beams?

A 1 only

B 2 and 3

C. 3and 4

D. 1 and 3

3.Which one of the following statements is correct as, regards tensile strength of wood?

A. Minimum in the direction parallel to the grains

B. Maximum in the direction parallel to the grains

C. Maximum in the direction across the grains

D. Same in all direction

4. A structural member carrying a pull of700 kN is connected to a gusset plate using rivets of 20 mm diameter. If the pull required for shearing the rivets, to crush the rivets and to tear the plate per pitch length are 60 kN, 35 kN and 70 kN respectively, then the number of rivets required is

A 12

B. 18

C. 20

D. 22

5. The maximum per cent of mement redistribution allowed in RCC beam is

A10%

B.20%

C. 30%

D. 40%

6. A four-wheel tractor whose operating weight is 13,000 kg is pulled along a haul read having a slope of 4% at a uniform speed with a rolling resistance of 10 kg/ton for 1% slope. The tension in the toe cable is 1105 kg. The rolling resistance of the haul road is

A. 35 kg/ton

B. 45 kg/ton

C. 55 kg/ton

D. 65 kg/ton

7. Consider the following statements:

If there is a state of pure shear t at a point then

1. The Mohr’s circle is tangential is the y-axis.

2. The centre of the Mohr’s circle coincides with the origin.

3. Unlike principal stresses are each numerically equal to t.

4. Principal stresses are like.

Which Of the above statements is/are correct?

A 1 only

B. 1  and2

C 2 and 3

D. 3 and 4

8. The advantage in using plywood is that the

A Tensile strength is equal in all directions

B. Higher tensile strength in longer direction

C. Higher tensile strength in shorter direction

D. Lower tensile strength is longer direction

9. In the limit state method, balanced design of a reinforced concrete beam gives

A. Smallest concrete section and maximum area of reinforcement

B. Largest concrete section and maximum area of reinforcement

C. Smallest concrete section and minimum area of reinforcement

D. Largest concrete section and minimum area of reinforcement

10. A belt designated as Hex bolt M 16 x 70 NL will have

A Diameter of 16 mm V

B. Diameter of 70 mm

C. Length of 16 mm V

D. Cross-sectional area of 16 x 70 cm Square

11. Consider the following statements:

1. Bricks lose their strength by 25% when soaked in water.

2. Minimum crushing strength of brick in buildings should be 35 kg/cm Square.

3. The size of modular type bricks is 20 cm x 10 cm x 10 cm including mortar thickness.

Which of the above statements are correct?

A. 1, 2and 3

B. 1 and 2 only

C. 1 and 3 only

D. 2 and 3 only

12. The correct statement in respect of a centrifugal pump is

A. The discharge varies in direct proportion to speed as also square of the diameter

B. The head varies as the square of the speed as also of the square of the diameter

C. The discharge varies in inverse proportion to speed as also the cube of the diameter

D. The power varies as the head and square of the diameter.

13. A three-hinged symmetrical arch is loaded as shown in figure

Which one of the following is the magnitude of the correct horizontal thrust ?

A P4/3

B. P

C P3/4

D. P3/8

14.A point in two-dimensional stress state. subjected to biaxial stress is shown in figure.

What is the normal stress acting on the plane AB?

A Zero

B.?

C. ? sin ? . cos ?

D. ?cos² ?

15. A simple plane truss acted upon by a load 2P at the apex A is shown.

The axial force in the member AB is ?

A P

B. ?2P

C P?3/2

D. ?3P

Answers

1 C
2 D
3 B
4 C
5 C
6 B
7 C
8 A
9 C
10 A
11 D
12 B
13 B
14 B
15 B

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civil engineering objective questions

Civil Engineering Through Objective type Questions
civil engineering objective questions
Objective Type Questions & Answers In Civil Engineering For Competitions & Interviews
civil engineering objective questions free Online test

1. Consider the following statements:
1. Bricks lose their strength by 25% when soaked in water.
2. Minimum crushing strength of brick in buildings should be 35 kg/cm
3. The size of modular type bricks is 20 cm x 10 cm x 10 cm including mortar thickness.
Which of the above statements are correct?

A 1, 2 and 3
B. 1 and 2 only
C. 1 and 3 only
D. 2 and 3 only

Ans: D

2. The correct statement in respect of a centrifugal pump is
A The discharge varies in direct proportion to speed as also square of the diameter
B. The head varies as the square of the speed as also of the square of the diameter
C. The discharge varies in inverse proportion to speed as also the cube of the diameter
D. The power varies as the head and square of the diameter.

Ans: B

3. Consider the following statements about theodolites:
1. Transit theodolite is atheodolite in which the telescope can be transited.
2. EDMI is a theodolite fitted with a micrometer for measurements.
3. A double reading theodolite is one in which diametrically opposite segments of the graduated circle are brought into view and the readings are averaged.
Which of the above statements are correct?
A. 1, 2 and 3
B. 1 and 2 only
C. 1 and 3 only
D. 2 and 3 only

Ans: A
4. Consider the following statements:
1. Sensitivity of a natural soil deposit cannot be less than 1.0.
2. A saturated loose sand deposit liquefies when water flows through it in upward direction under critical hydraulic gradient.
3. A quick clay has a very high sensitivity.
Which of the above statements are correct?
A. 1, 2 and
B. 1 and 2 only
C. 1 and 3 only
D 2 and 3 only

Ans: A

5. The terminal velocity of a small sphere settling in a viscous fluid varies as the
A. inverse square of the diameter
B. inverse of the diameter
C. first power of its diameter
D. inverse of the fluid viscosity

Ans: D

6. Consider the following statements
1. At shrinkage, limit, th soil remains fully saturated.
2. The shear strength of all soils at liquid limit is the same.
3. The shear strength of all soils at plastic limit is the same.
Which of the above statements is/are correct?
A. 1, 2 and 3
B. 1 and 2 only
C. 2 and 3 only
D. 1 only

Ans: A

7. Refraction error is the least in case of
A. Stadia tacheometry
B. Tangential tacheómetry
C. Subtense bar tacheometry
D. Omnimeters

C
8. In all reaction maximum efficiency is obtained if the
A. Guide vane angle is 90°
B. Blade angle is 90° at the inlet
C. Blade angle is 90° at the outlet
D. Angle of the absolute velocity vector at the outlet is 90°
Ans: D

9. Liquefaction of foundation soil during an earthquake shall not be the reason for cracking of
A. only floors is the building
B. walls and roof in the building
C. beams and columns in the building
D. only balcony in the building

Ans: D

10. Consider the following statements:
1. Drain values are provided at elevated, or higher, points to remove accumulated air.
2. Reflux valve allows flow in one direction only.
3. Drain valves are provided at low points to remove silt and other deposits.
Which of the above statements is/are correct?
A. 1,2 and 3
B. 2 only
C. 2 and 3 only
D. 3 only

Ans: C

11. Match List-I with List-TI and select the correct answer using the code given below the lists:
List I
(Type of survey)
A. Traffic volume study
B. Speed and delay study
C. Spot-speed study
D. Multiple character Studies

List II (Method lintrurnent)
1. Works spotinterview method
2. Doppler radar
3. Floating car method
4. Automatic vehicle counter and classifier
5.. Electronic detector

Code:
A B C D
A. 5 3 2 4
B. 1 3 2 5
C. 5 2 3 4
D. 1 2 4 3

Ans: A

12. Consider the following statements:
1. The minimum value of group index for a soil be taken as zero.
2. The maximum possible value of group index for a soil is twenty.
Which of the above staternent is/are correct?
A. Both 1 and 2
B. 1 only
C. 2 only
D. Neither 1 nor 2
Ans: A

13. A light-house is visible just above the horizon at a certain station at the sea level. Distance between the station and the light house is 60 km. The height of the light house is
A. 243.5 m
B. 4.0 M
C. 287.4 m
D 5.4 m

Ans: A

14. Consider the following statements:
The disadvantages of employing steel pipes in conveyance and distribution of water are, they
1. cannot withstand high negative pressures or vacuums that may be created in them, especially the combined effects of vacuum and external loads of backfill and traffic .
2. are easily affected by acidic or alkaline waters and even atmospheric agencies may produce adverse effects on them.
3. Cannot be used for high pressures.(Generally not used for pressure above 7kg/cm)
Which of the above statements is/are correct?

A. 1, 2 and 3
B. 1 and 2 only
C. 2 and 3 only
D. 1 only

Ans: B

15. Consider the following statements:
The moment of momentum equation in fluid dynamies can be used
1. To find the torque exerted on sprinklers by water.
2. To determine the force in a flow passage, when stream changes direction! magnitude.
Which of the above statements is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2

Ans: C

16. Garret’s diagrams are used to
A. separate base flow from total runoff
B. correct inconsistency in rainfall data
C. determine reservoir capacity
D. design channels

Ans: D
17. Consider the following statements:
The critical value of Reynolds number at which the boundary layer changes from laminar to turbulent depends upon
1. Turbulence in ambient flow
2. Surface roughness.
Which of the above statements is/are correct? . .
A. Neither 1 nor 2
B. 1 only
C. 2 only ,
D. Both 1 and 2

Ans: D

18. In a transit theodolite, error due to eccentricity
of verniers is eliminated by reading
A. both verniers
B. both right swing and left swing
C. ‘right and left faces
D. different parts of main scale

Ans: A

19. An aeroplane is cruising’ at a speed of 800 km/ h at an. altitude where the air temperature is 0°C. The flight Mach number at this speed is nearly
A. 1.3
B. 0.67
C. 0.25
D. 2.4

Ans: B

20.Light reflecting devices used to guide the driver along the proper alignment are called
A. Rumble strips
B. Delineators
C.Attenuators
D. Litter bin

Ans: B

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Civil Engineering Assertion and Reason type Objective Questions fully Solved

Civil Engineering Assertion and Reason type Objective Questions fully Solved
Objective Solved Problems For UPSC IES Civil Engg
Civil Engineering exam Questions and Answers
IES question papers: Civil Engineering
Directions: Each of the following items consists of two statements, one labelled as the ‘Assertion A.’ and the other as ‘Reason (R) You are to examine these two statements carefully and select the answers to these items using the codes given below:
Codes:
A. Both A and R are individually true and R is the correct explanation of A.
B. Both A and R are individually true but R is not the correct .explanation of A
C. A is true but R is false ,
D. A is false but R is true

1. Assertion (A): Energy dissipation in a hydraulic jump is mainly caused by the large eddies in turbulence.
Reason (R) : Large eddies transport the fluid, over large distances, thus causing the mixing effect of turbulence.

Ans : C

2. Assertion (A): An economical channel section gives maximum discharge for a given cross-sectional area.
Reason (R) : An economical channel section has smooth surface for reduced friction
.
Ans : C

3. Assertion (A) : The possibility of piping failure in earth dams is more if black cotton soil is the foundation material.
Reason (R) : The highly expansive black cotton soils are the most common soils wherever Basalt rock is present.

Ans : B

4. Assertion (A) : The movement of two blocks of wood welted with hot glue requires greater, and greater effort as the glue is drying up.

Reason (R) : Viscosity of liquids varies inversely with temperature.

Ans : A

5. Assertion (A): In the border strip method of irrigation, the size of the strip depends on soil characteristics. slope of the land and discharge.
Reason (R) : Border strip method is a controlled type of subsurface irrigation method.

Ans : C

6. Assertion (A) : Reynolds number of a fluid flow is indicative of the relative dominance of the effects of momentum transfer between adjacent layers of the flow over the viscous stresses.
Reason (R) : For flow at high Reynolds numbers, the velocity profile is logarithmic
.
Ans : B

7. Assertion (A) : A seepage passing through the body of an earth dam affects the weight of dam.
Reason (R) : The specific weight of submerged soil is not dependent on the porosity of soil.

Ans : B

8. Assertion (A) : In a strainer type tube well, strainer pipes are surrounded by wire mesh. Reason (R) : This prevents the fine particles from entering the well pipe.

Ans : A

9. Assertion (A) : Break point chlorination ensures a residual of free available chlorine. Reason (R) : A super high chlorine dose inactivates the pathogens in a very short time.

Ans : B

10. Assertion (A) : Flow net is dependent on the permeability of soil through which flow is taking place.
Reason (R) : The flow net is useful in finding the discharge.

Ans : B

11. Assertion (A) : At the same voids ratio desiccated clay is stronger than saturated clay.
Reason (R) : Desiccation impacts (induces) pre-compressive forces in the soil structure.

Ans : A

12. Assertion (A) : Lining a canal is always beneficial and economical.
Reason (R) : The seepage losses are greatly reduced and extra water is available for irrigation.

Ans : D

13. Assertion (A) : Worn out (smooth) tyres offer higher friction factors on dry pavements than new tyres with treads well intact.
Reason (R) Reduced pneumatic pressure is held in tubes which carry smooth tyres over them.

Ans : A

14.Assertion (A) : In plane table photogrammetry, the areas to be mapped are taken from either end of a base line.
Reason (R) The position of the detail point with reference to the base line is obtained by intersection of rays drawn to it from each end of the base.

Ans : A

15. Assertion (A): Tie bars are used in cement concrete slabs across the longitudinal joints. Reason (R) : Tie bars are designed to act as load transfer devices.

Ans : C

16. Assertion (A) : Traffic Smog is likely to occur in regions where vehicle mileage is considerable and there is a low incidence of sunlight.
Reason (R) : Traffic Smog is caused by the reaction of oxides of nitrogen and some of the hydrocarbons in presence of bright sunlight.

Ans : C

17. Assertion (A) : In an intersection design, the relative speed is dependent on the absolute speed of intersecting vehicles and the angles between them.
Reason (R) : When the angle of merging is small, the relative speed will be high
.
Ans : B

18. Assertion (A) : The pandrol clip is a fit and forget type of fastening and is made from silicone manganese spring steel bar and heat treated.
Reason (R) : The pandrol clip has a point contact and causes indentation on the rail due to heavy toe load and small contact area.

Ans : B

19. Assertion (A) : In the overall design and layout of a harbour (or port), differentiation
is made between entrance’ and ‘channel’ depths.
Reason (R) : The ‘scend’ (or pitching) of a vessel may be larger at the entrance to the channel than within the channel.

Ans : A

20. Assertion (A) : The paved area adjacent to the terminal building and hangers used for loading and unloading, servicing and parking of aircraft is called as apron.
Reason (R) : The size of the apron depends on the size and number of gate positions and the way the gate positions are arranged.

Ans : B

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