DFCCIL'21 CE: Daily Practice Quiz. 27-July-2021 |_00.1
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DFCCIL’21 CE: Daily Practice Quiz. 27-July-2021

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

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

Q1. A survey which consists of the horizontal and vertical location of certain points by linear and angular measurements and is made to determine the natural features of a country is known as
(a) Geodetic survey
(b) Cadastal survey
(c) City survey
(d) Topographical survey

Q2. A series of closely spaced contour lines represent
(a)Steep slope
(b)Gentle slope
(c)Uniform slope
(d)Plane surface

Q3. What is sway frame?
(a) longitudinal displacement of one end of member relative to other end is not effectively prevented
(b) transverse displacement of one end of member relative to other end is effectively prevented
(c) longitudinal displacement of one end of member relative to other end is effectively prevented
(d) transverse displacement of one end of member relative to other end is not effectively prevented

Q4. The degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reactions components and 14 joints is
(a) 8
(b) 6
(c) 5
(d) 3

Q5. Aeration of water is done to remove
(a) Odour
(b) Color
(c) Hardness
(d) Turbidity

Q6. BOD signifies:
(a) Biological oxygen demand
(b) Bacteriological oxygen demand
(c) Biochemical oxygen demand
(d) Biology of dehydration

SOLUTION

S1. Ans.(d)
Sol. Topographical survey → this type of survey consists of horizontal and vertical location of certain points by linear and angular measurements and is made to determine the natural features such as lakes, streams, hills, etc. and artificial features such as roads, villages and towns etc.

S2. Ans.(a)
Sol. Closely spaced contour line ⇒ steep slope (Hill)
Apart contour lines → Gentle slope
Equally spaced contour lines ⇒ Uniform slope
Straight parallel and equally space contour lines ⇒ plane surface.

S3. Ans.(d)
Sol. In sway frame, transverse displacement of one end of member relative to others end is not effectively prevented while in non-sway frame, transverse displacement of one end of member relative to others end is effectively prevented.

S4. Ans.(b)
Sol. Given, member (m) = 15
Reaction (r_e) = 3
Joints (j) = 14
D_S= ?
D_s=(3m+r_e )-3j
=(3×15)+3-(3×14)
=48-42
=6
S5. Ans.(a)
Sol. In the aeration method, the water is brought in intimate contact with air which removes undesirable gases (like CO_2,H_2 S), tastes, odour, volatile liquid and dissolved mineral (like iron and magnesia) from water.

S6. Ans.(c)
Sol. BOD signifies biochemical oxygen demand (also called biological oxygen demand). It is the amount of dissolved oxygen needed by aerobic biological micro-organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

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