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DFCCIL’21 CE: Daily Practice Quiz. 09-Aug-2021

Quiz: Civil Engineering
Exam: DFCCIL-JE
Topic: MISCELLANEOUS

Each question carries 1 mark
Negative marking: 1/4 mark
Time: 8 Minutes

Q1. Permanent wilting point moisture content for a crop represents the
(a) hygroscopic water
(b) capillary water
(c) field capacity water
(d) water of adhesion

Q2. A retaining wall of trapezoidal section having base width ‘b’ retains earth at its back. For no tension to be developed at base, the resultant force will intersect the base from centre line of the base, within a distance of
(a) b/3
(b) b/4
(c) b/5
(d) b/6

Q3. The water utilized by the plants is available in soils mainly in the form of
(a) Chemical water
(b) Hydroscopic water
(c) Capillary water
(d) Gravity water

Q4. A doubly reinforcement beams are provided:
1. when depth of the section is restricted.
2. To reduce deflection of beam.
3. To reduce torsional moment.
Which of the above statement is correct?
(a) Statement 3 only
(b) Statement 2 only
(c) Statement 1, 2 and 3 only
(d) Statement 1 only

Q5. The clear distance between the lateral restraints for a simply supported or continuous beam to ensure lateral stability should not exceed:
(a) 60 b² or 250 b²/d whichever is more.
(b) 60 b or 250 b²/ b whichever is less.
(c) 60 b or 250 b²/d whichever is more.
(d) 60 b or 250 b²/d whichever is less.

Q6. The factored loads at the limit state of collapse for DL+ LL, DL + WL and DL + LL + WL combinations, according to IS: 456 – 2000 are respectively
(a) 1.5 DL + 1.5 LL, 1.2 DL + 1.2 WL, 1.5 DL + 1.5 LL + WL
(b) (0.9 or 1.5) DL + 1.5 LL, 1.5 DL + 1.5 WL, 1.2 DL + 1.2 LL + 1.2 WL
(c) 1.2 DL + 1.2 LL, 1.5 DL + 1.5 WL, 1.5 DL + 1.5 LL + 1.5 WL
(d) 1.5 DL + 1.5 LL, (0.9 or 1.5) DL + 1.5 WL, 1.2 DL + 1.2 LL + 1.2 WL

SOLUTION

S1. Ans.(a)
Sol. Permanent wilting point moisture content represents the hygroscopic water. This water attached with the soil particles and can not extracted by the plants.

S2. Ans.(d)
Sol. if the resultant forces passes from the middle third position form the base then there will be no tension in the dam.
▭(e≤b/6)
e= eccentricity
b= width of dam section.
.
S3. Ans.(c)
Sol. The water utilized by the plants is available in soils mainly in the form of capillary water. Capillary water is responsible for growth of plants while hydroscopic water is attached with the soil particle hence it cannot be extracted by plants.

S4. Ans.(c)
Sol. Double reinforced beam provided –
-Depth of the beam restricted
-Increasing moment carrying capacity.
-Safety against reversal of stress.
-Reduce deflection of beam.

DFCCIL'21 CE: Daily Practice Quiz. 09-Aug-2021 |_30.1

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