NHPC-JE'21 CE: Daily Practices Quiz. 10-Dec-2021 |_00.1
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NHPC-JE’21 CE: Daily Practices Quiz. 10-Dec-2021

Know your strengths and practice your concepts with this quiz on NHPC JE Recruitment 2021. This quiz for NHPC JE Recruitment 2021 is designed specially according to NHPC Syllabus 2021.

Quiz: Civil Engineering
Exam: NHPC-JE
Topic: Miscellaneous

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

Q1. What will be the dry density of soil if a soil has a bulk density of 22 kN/m^3 and water content 10%
(a) 18.6 kN\/m^3
(b) 22.0 kN\/m^2
(c) 23.2 kN\/m^3
(d) 20.0 kN\/m^3

Q2. Calculate the value of modulus of rigidity (N/mm²) if the Poisson’s ratio is 0.25 and modulus of elasticity for the material is 200 N/mm²
(a) 50
(b) 80
(c) 100
(d) 150

Q3. Outer projection of ‘Tread’ is called
(a) Nosing
(b) Treader
(c) Step
(d) Going

Q4. Clay can be described as:
(a) Aquifer
(b) Aquitard
(c) Aquiclude
(d) None of these

Q5. Which of the following is an example of a sedimentary rock?
(a) Quartzite
(b) Sandstone
(c) Marble
(d) Granite

Q6. Identify the work in which the units of measurement for estimation of quantities are NOT identical
E. Turfing of bunds of a canal
F. Wood work for door shutters
G. White washing
H. Well sinking
(a) G
(b) H
(c) E
(d) F

Solutions

S1. Ans.(d)
Sol. Bulk density (Υ_b )=22 kN\/m^3
Water content (w)=10%
Dry density (Υ_d )=Υ_b/(1+w)
=22/(1+0.1)
=20.0 kN\/m^3

S2. Ans.(b)
Sol. Given; E = 200 N/mm², G = ?
μ = 0.25
we know that,
E=2G(1+μ)
200=2G(1+0.25)
100=G(1.25)
G=80 N\/mm^2

S3. Ans.(a)
Sol. Noising → It is the outer projection of a tread beyond the face of the riser. It is rounded to give good architectural view.

S4. Ans.(c)
Sol. Aquiclude are geological formation or stratum of impervious material which do not allow of water. Clay is an example of aquiclude.

S5. Ans.(b)
Sol. Sedimentary rocks → These rocks are formed by deposition of products of weathering on the pre-existing rock by transport agent like frost, rain, wind etc.
Ex. Sandstone, Limestone, Lignite, Gypsum etc.

S6. Ans.(b)
Sol. Well sinking is different from other options because it is measured in meter while turfing of bunds of a canal, wood work for door shutters and white washing are measured in square meter.

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