CPWD JE Civil Engineering Question Paper

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1. A well-seasoned timber has a moisture
content of about
a. 15% to 20%
b. 10% to 12%
c. 5% to 85
d. 2% to 3%
2. Dry rot in timber is caused by
a. Lack of ventilation
b. Lack of light
c. Immersion in water
d. Alternate wet and dry atmosphere
3. Wood is impregnated with creosote oil in
order to
a. Change its colour
b. Protect against fungi
c. Protect the annular layers
d. Fill up the pores
4. Consider the following statements :
Bricks are soaked in water before use in
masonry work
1. to remove dust
2. to remove air voids
3. so that they do not absorb water from
cement mortar
Which of these statements is/are correct
a. 1, 2 and 3
b. 1 only
c. 2 and 3
d. 3 only
5. The proper size of mould for testing
compressive strength of cement is
a. 7.05 cm tube
b. 10.05 cm cube
c. 15 cm cube
d. 12.05 cm cube
6. The specific gravity of commonly
available ordinary portland cement is
a. 4.92
b. 3.15
c. 2.05
d. 1.83
7. A quick-setting cement has an initial
setting time of about
a. 50 minutes
b. 40 minutes
c. 15 minutes
d. 5 minutes
8.Match List I (Cement Mortar for Different
Work) with List II(Proportion of Cement
and sand in Mortar ) and select the correct
answer :
List I
A. Cement mortar for normal brick work
B. Cement mortar for plastering works
C. Cement mortar for grouting the
cavernous rocks
D. Cement mortar for guniting
List II
1. 1 : 4
2. 1 : 3
3. 1 : 6
4. 1 : 1.5
A B C D
a. 3 4 2 1
b. 1 2 3 4
c. 3 1 4 2
d. 1 4 2 3
9.Match List I(Admixture) with list II
(Action in Concrete) and select the correct
answer :
List I
A. Calcium lignosulphonate
B. Aluminum powders
C. Tartaric acid
D. Aluminum sulphate
List II
1. Anti bleeder
2. Retarder
3. Air entrainer
4. Water reducer
A B C D
a. 3 2 1 4
b. 4 3 2 1
c. 3 4 1 2
d. 4 2 3 1
10.A mortar in which both cement and lime
are used in definite proportions as binding
materials is reffered to as
a. Light weight mortar
b. Fire resistant mortar
c. Gauged mortar
d. Water resistant mortar
11. In order to improve the workability of
harsh cement mortar which of the following items is/are added ?
1. water
2. Plaster of Paris
3. Lime
Select the correct answer using the codes given below :
a. 1 only
b. 1 and 2
c. 3 only
d. 1 and 3
12. Bleeding of concrete leads of which of the
following ?
1. Drying up of concrete surface
2. Formation of pores inside.
3. Segregation of aggregate
4. Decrease in strength
Select the correct answer using the coded given below :
a. 1 only
b. 1 and 2
c. 1 and 3
d. 2 and 4
13. Match List I (material Characteristics)
with List II (Property of Concrete) and select the correct answer :
List I
A. Water cement ratio
B. Water content
C. Minimum cement content
D. Segregation
List II
1. Durability
2. Compressive strength
3. Stability of mix
4. Workability
A B C D
a. 4 1 3 2
b. 2 4 3 1
c. 4 1 2 3
d. 2 4 1 3
14. Stress-strain curve of concrete is
a. A perfect straight line up to failure
b. Straight lien up to 0.002% string value and then parabolic up to failure
c. Parabolic up to 0.002% strain value
and then a straight line up to failure
d. Hyperbolic up to 0.002% staring value
and then a straight line up to failure
15. Consider the following statements :
Ultrasonic pulse velocity test is
1. used to measure the straight of wet concrete.
2. used to obtain estimate of concrete strength of finished concrete elements.
3. a destructive test
4. a non-destructive test.
Which of these statemtns are correct ?
a. 1, 2 and 3
b. 2 and 3
c. 2 and 4
d. 1 and 3
16. The material in which large deformation is
possible before the absolute failure or rupture is termed as
a. Brittle
b. Elastic
c. Ductile
d. Plastic
17.
A rigid bar AC is supported by three rods of same material and of equal diameter. The bar AC is initially horizontal. A force P is applied such that the bar AC continues to remain horizontal. Forces in each of the shorter bars and in the longer bar are, respectively.
a. 0.4 P, 0.2 P
b. 0.3 P, 0.4 P
c. 0.2 P, 0.6 P
d. 0.5 P , zero
18. A member having length L, cross-sectional
areas A and modulus of elasticity E is subjected to an axial load W. The strain energy stored in this member is
a. WL2 / AE
b. WL2 / 2AE
c. W2L2 / 2AE
d. W2L / AE
19. Elastic limit is the point
a. Up to which stress is proportional to strain
b. At which elongation takes place
without application of additional load
c. Up to which if the load is remoed,
original volume and shaped are regained
d. At which the toughness is maximum
20. Match List I with list II and select the
correct answer :
List I(Material)
A. Isotropic
B. Homogeneous
C. Viscoelastic
D. Brittle
List II
1. Time dependent stress-strain relation
2. No plastic zone
3. Identical properties in all directions
4. Similar properties throughout the
volume
A B C D
a. 3 1 2 4
b. 4 1 2 3
c. 3 4 1 2
d. 4 3 1 2