Civil Engineering Exit exam PDF | 2023 (In Ethiopia)

Civil Engineering Exit exam PDF

Civil Engineering Exit exam PDF
  1. The following are the overall purposes of structural design EXCEPT.

A, To ensure a given structure to not fail in its design lifetime, or to has an acceptably low risk of failure.

B, To ensure that the serviceability of the structure is not impaired by excessive deflections, vibrations, and the like.

C, To make sure that the structure is constructed with minimum initial cost by compromising safety and quality.

D, To ensure economy and harmony

ANSWER: C

2, Which of the following relation is correct?

A, Design Strength = Ultimate strength / Partial factor of safety

B, Design Strength = Ultimate strength + Partial factor of safety

C, Design Strength = Ultimate strength * Partial factor of safety

D, Design Strength = Ultimate strength – Partial factor of safety

ANSWER: A

3, All of the following are assumptions made by Euler to define critical load except;

A, Initially, the column is perfectly straight and elastic.

B, The load is axial and passes through the centroid of the section.

C, The materials of the column are homogeneous and isotropic.

D, The shortening of the column due to axial compression is taken account

ANSWER: D

4, Which statement best describes internal and outstand elements in a compression members?

A, Internal elements are considered to be simply supported along two edges perpendicular to the direction of compressive stress.

B, Outstand elements are considered to be attached along one edge and free on the other edge parallel to the direction of compressive stress.

C, Internal elements are considered to be simply supported along two edges parallel to the direction of compressive stress.

D, B & C

ANSWER: D

5, Which one of the following parameters affect the selection of buckling curves

A, Direction of buckling

B, Thickness of the material

C, Strength/grade of steel

D, All

ANSWER: D

6, What is overall flexural buckling?

A, failure occurs by excessive deflection in plane of weaker principal axis

B, failure occurs by excessive deflection in plane of stronger principal axis

C, failure occurs by twisting of member

D, failure caused by seismic load

ANSWER: A

7, Which of the following is true about beam-column?

A, net end moments are zero

B, member subjected to axial force and bending moment

C, member subjected to bending moment

D, member subjected to axial force only

ANSWER: B

8, Which of the following statement is true?

A, lap joint eliminates eccentricity of applied load, butt joint results in eccentricity at connection

B, lap joint and butt joint eliminates eccentricity at connection

C, lap joint results in eccentricity of applied load, butt joint eliminates eccentricity at connection

D, lap joint and butt joint results in eccentricity of applied load

ANSWER: D

9, Which of the following is correct for pitch and gauge of the bolts?

A, pitch is measured along direction of load, gauge is measured perpendicular to direction of load

 B, pitch is measured perpendicular direction of load, gauge is measured along to direction of load

 C, pitch is measured along direction of load, gauge is measured along to direction of load

D, pitch is measured perpendicular direction of load, gauge is measured perpendicular to direction of load

ANSWER: A

10, Which one of the following columns is more slender, if the column has the same length and cross-section?

A, Both end of the column is fixed

B, Both end of the column if pinned

C, One end of the column is fixed and the other end is pinned

D, None

ANSWER: B

11, Which one of the following is true about tied and spirally reinforced columns.

A, Spiral column has a higher initial stiffness than tied columns

B, After yielding, both spiral and tied column failed in ductile manner

C, After the maximum loading capacity, tied column failed in brittle failure, but spiral column shows more ductility and gives warning to the impending failure.

D, A and C

ANSWER: C

12, The diameter of the longitudinal bars of a column should never be

A, Less than 12 mm.

B, Greater than 16mm

C, Less than 10mm

D, Greater  than 20mm

ANSWER: A

13, What is the main mechanism in the development of collapse in beams and frames?

A, By inserting a plastic hinge at a plastic load limit into a statically determinate structure.

B, By inserting a plastic hinge at maximum load limit into a statically indeterminate structure.

C, By forming a kinematic mechanism permitting an unbounded displacement of the system can be formed.

D, A and C

ANSWER: D

14, The yield line analysis of a slab is:

A, A lower bound method in which the predicted failure load of a slab for a given moment of capacity may be higher than the true value.

B, An upper bound method in which the predicted failure load of a slab for a given moment of capacity may be higher than the true value.

C, An upper bound method in which the predicted failure load of a slab for a given moment of capacity may be lesser than the true value.

D, None

ANSWER: B

15, In the simplified method of analysis of flat slab, distribution of moments along the column strip and middle strip respectively as a percentage of positive moment are

A, 75 and 25

 B, 65 and 35 

 C, 55 and 45

 D, 45 and 55

ANSWER: C

16, What is the purpose of moment redistribution in beam design?

A, To reduce congested reinforcement bars

B, In order to solve the problem some percentage of the moment at the support is redistributed to the span region

C, To decrease the moment over the section with higher moment and increase the moment over the a region with lower moment

D, All

ANSWER: D

17, Why slabs are designed for bending and shear?

A, Loading on slab is perpendicular to the horizontal surface where the span/ effective depth ratio is too high

B, The slab tends to bend in the central area whereas near the junction of slab and column

C, Loading on slab is parallel to the horizontal surface where the span/ effective depth ratio is too high

D, The slab tends to bend at the edge area whereas near the junction of slab and beam

A and B

ANSWER: E

18, Which one is the main reason to use helical reinforcement instead of normal links in the design of reinforced column?

A, To protect the column against seismic load

B, To resist high amount of load

C, To provide the outside concrete a warning signal before the sudden failure of column

D, A and C

ANSWER: D

What are the advantages of the reinforcing steel bar embedded in the concrete section?

Effectively taking up all the tension without separating from the concrete, since concrete is weak in tension.

The bond between steel and the surrounding concrete ensures strain compatibility.

The reinforcing steel imparts ductility to a material.

All

ANSWER: D

Identify the major criteria’s which should be satisfied in the design of reinforced concrete the structure.  

The arrangement of space, ceiling height access and traffic flow must complement the intended use.

The overall cost of the structure should not exceed the client’s budget.

Safely support all anticipated loadings and impairs its usefulness.

A structure should be designed to require a minimum of maintenance & should be maintained in a simple fashion.

All

ANSWER: E

Identify which expression is correct about characteristic strength according to limit state method?

Is the value of the strength of material below which not more than 5 percent of the test results are expected to fail.

Is the value of the strength of material in which 95% of the test result expected to pass

 Is the value of the strength of material in which 95% of the test result expected to fail

Is the value of the strength of material below which not more than 5 percent of the test results are expected to fail.

A & B

ANSWER: E

Which of the following factor do NOT affects the shear strength of reinforced concrete beams?

The percentage of flexural steel in a member

Effective depth of the member

Type of aggregates

Compressive strength of concrete

None

Answer: E

What are the conditions for provision of doubly reinforced beam?

When the applied moment exceeds the moment resisting capacity of a singly reinforced beam

 When the dimensions b and d of the section are restricted due to architectural, structural and/or constructional purposes.

 When the sections are subjected to reversal of bending moment. For example piles underground water tanks, winds braces, etc.

 In continuous T beam where the portion of beam over middle support has to be designed as doubly reinforced.

 When the beams are subjected to eccentric loading, shocks or impact loads.

ALL

ANSWER: F

In the design of reinforced concrete structural which of the following is/are correct regarding to anchorage and Splicing of reinforcement

Anchorage is provided near the extreme end (or cut-off point) of a bar subjected to tension (or compression).

Anchorage is essentially provided to create a bond between steel and concrete

Anchorage is essentially provided to axial force between steels 

Lap length of reinforcement is transfer effectively the axial force from the terminating bar to the connecting (continuing) bar with the same line of action at the junction

All except C

ANSWER:  E

For 8.5kN/m2 and 5KN/m2 dead and imposed load RC slab respectively calculate the design load for ultimate and serviceability limit state respectively.

13.55kN/m2   and 13.55kN/m

13.55kN/m2   and 18kN/m

18kN/m2   and 18kN/m

18kN/m2   and 13.55kN/m

10.5kN/m2   and 7.5kN/m

ANSWER: D

Which one of the following is false?

The depth of the building is lowering internal compressive pressure intensity for the same opening and height of the building.

Local external pressure coefficient greater than or equal to global external pressure coefficient.

External pressure Coefficient is always suction Lee ward side.

External pressure Coefficient may have suction on wind ward side of wall

 None of the above

ANSWER: D

Which one of the following term is not included in seismic analysis of the structure

Height

 Mass

 Area

 site soil condition

 All

ANSWER: C

Which one is not the assumption of fully plastic moment section?

The yield stresses and the modulus of elasticity have the same value in compression as in tension

The material is homogeneous and isotropic in both the elastic and plastic states

 The plane transverse sections remain plane and normal to the transverse axis after bending

The cross section of the beam is symmetrical about an axis through its centroid parallel to plane of bending

None of the above

ANSWER: C

According to Hillerborg states that the ratio of support moment to span moment is between 1.5 and 2.5, what is the implication of this ratio?

Span moment is greater than support moment

It shows elastic distribution of load with limited redistribution

The maximum plasticity of the support

Mechanism condition is within this stage

All

ANSWER: B

Which types of forces are generated and consider during earthquake design

Vertical shear

 Horizontal shear

 Bending moment

Combination of horizontal and vertical shear

ANSWER: B

What is the main function of the diaphragm in a building during an earthquake

Transfer Self Weight of Building to soil

 Transfer Live load from Terrace to Ground

Transfer Lateral Load into Vertical Element

 None of the above

ANSWER: C

Which one of the following not the parameter of wind pressure on the structure

Shape of the structure

 winter or Summer

 Velocity of air

 projected Area of the building

 None

ANSWER: E

In order to secure superstructure from earthquake, which technique is most preferred and used worldwide

Base isolation

 reinforcement provision

Energy dissipation

 seismic damper

ANSWER: A

Which one of the following statement is correct about design philosophy that applied on bridge design?

Load resistance factor design method considers variability only on the effect of loads.

Load resistance factor design method has only three limit state to design convectional bridge.

Allowable stress design method is which design bridge based on the stress in the structure at working load is allowed to exceed the yield strength of the material.

In load resistance factor design method load modifier is a factor accounting for ductility, redundancy and the operational classification

Allowable stress design method is suited for design of modern structures than Load resistance factor design method.

ANSER: D

Selection of a bridge type involves consideration of one of the following factors. 

Geometric and subsurface conditions of the site

Functional requirements

Legal considerations

Economics and ease of maintenance

All are correct

ANSWER: E

Identify the incorrect statement about permanent load on bridge structures.

 Earth surcharge load is the result of approach slab load placed near the top of abutment which has vertical and horizontal effect.

Dead load of structural components and nonstructural component are one type of permanent load estimated by taking the unit weight and cross section of the members.

Lateral earth pressure has insignificant effect on instability of abutments compared to gravity permanent and transient loads.

Dead load of earth fill is considered as permanent load while designing culvert.

None of the above.

ANSWER: C

Which one of the following is a wrong about axle load value of vehicular live loads?

Design truck have total axle load of 325kN

Design tandem have total axle load of 220kN

Design lane load have 9.3kN/m

 Design truck have axle load of 145kN for rear and front axle

None of the above

ANSWER: D

Identify the major structural advantages of Truss Girder Bridge compared to other bridge superstructure? 

The primary forces are axial force (stress resultants are less).

Greater overall depths are permissible.

Have reduced self-weight.

A and C

All are correct

ANSWER: E

Which one of the following are wrong about bearing elements

A two span girder will have fixed bearing at the center support and expansion bearings at the two abutments.

A continuous girder require fixed bearing at one and expansion bearing on all other supports

Fixed bearings allow translation but restrict rotation movements

Expansion bearings allow both rotational and translational movements

None of the above

ANSWER: C

The stopping sight distance of a vehicle moving with 45km/hr. on the leveled road and having a coefficient of friction as 0.4 is?

48m

49m

50m

51m

ANSWER: D

The design of horizontal and vertical alignments, super elevation, gradient is worst affected by________________

Length of vehicle

Width of vehicle

Speed of vehicle

Height of vehicle

ANSWER:C

 In adequate drainage system will cause on pavement structure

Waves and corrugations failure in flexible pavements.

Stripping failure in flexible pavements

Mud pumping failure in rigid pavements

Volume change of subgrade soil.

All

ANSWER: E

For a constant value of coefficient of lateral friction, the value of required super-elevation increases with

Increase in both speed and radius of curve

decrease in both speed and radius of curve

Increase in speed and with decrease in radius of curve

decrease in speed and with Increase in radius of curve

ANSWER: C

Which factor will be not considered as physical factor (environment) in highway engineering rout selection?

 Soil type

Climate condition

Topography of land

Management man power

ANSWER: D

Which of the following is the false statement?

In both sag and crest vertical curves with up or down grades (similar direction) no lowest and highest points on the curve.

 Land acquisition cost and vehicle operation cost will increase due to improper alignment selection

Maintenance cost and accident severity will increase due to  improper alignment selection

The selection of minimum length of a crest vertical curve is controlled by headlight SSD and drainage control

ANSWER: D

 transition curve is essentially provided to horizontal curve in the road construction is

Generate more frictional forces for stability

Allow vehicles to have increased speed while driving

Negate the effect of centrifugal forces

Avoid abrupt change in radius from a straight line to a finite radius curve

ANSWER: D

The full width of land acquired before finalizing a highway, alignment is known

Width of formation

Right of way

Carriage way

Roadway

ANSWER: B

Which one of the following is false statement?

Critical tensile stress occurs at bottom of HMA for flexible pavement.

Critical tensile stress occurs at the bottom of base course for cement treated base coarse flexible pavement.

Critical tensile stress occurs at bottom of PCC slab for composite pavement.

None

ANSWER: D

Which of the following is wrong about airfield design?

 The determination of subgrade strength, shrinkage and swelling, frost action and mud pumping, the vertical profile of the soil types, densities and moisture contents are necessary before design.

While the magnitude and configuration of the wheel loads are the dominant factors in the design of airfield pavements, load repetition is an important secondary consideration for both rigid and flexible pavements.

 The volume and distribution of airplane traffic are important factors in design

 The strength of the subgrade soil in not a big concern during design

ANSWER: D

One of the following is not the necessary step in the design of gravel roads.

Determine the minimum thickness necessary to avoid excessive compressive strain in the subgrade.

 Determine the aggregate crushing value of wearing course and the subgrade.

 Determine the extra thickness needed to compensate for the gravel loss under traffic during the period between gravelling operations.

 Determine the CBR value of the subgrade

ANSWER: B

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7 thoughts on “Civil Engineering Exit exam PDF | 2023 (In Ethiopia)”

  1. Dinaol Yirdaw

    To all concerned parties I am a student of Dinaol Yirdaw Firisa Ambo university civil egineering department who fulfilled all the exit exam requirements and prepared for it and took(completed) this exam according to my rules (laws ) and discipline. However, to be honest, I was very saddened by the situation I faced when I took this test. I walked into the exam room with a calculator and a small piece of paper with my username. After I logged out six(6) times they transferred me to another room and I was ordered to go.I started the exam immediately the computer was locked repeatedly and tried many times but it refused to get up. After a while they started looking for another one for me my mind was stolen I lost consciousness I couldn’t work they calmed me down and I finished ( 49) I replied so I am in the list of unsuccessful ones I read it while I was thirsty and hungry and pinched for my goal #but………. it was messed up and caused my failure in general, I would kindly ask you to give us your views (solutions).

    regards

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