NHPC-JE'21 CE: Daily Practices Quiz. 12-Nov-2021 |_00.1
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NHPC-JE’21 CE: Daily Practices Quiz. 12-Nov-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.The portion of the brick without a triangular corner equal to half the width and half the length is called ………..
(a) Closer
(b) Queen closer
(c) King closer
(d) Squint brick

Q2. For a given soil sample,
〖 C〗_c= Coefficient of curvature
C_u = Coefficient of uniformity
D_10 = Effective size
D_30= Diameter through which 30% of the total soil mass is passing
If C_c=1.0 and C_u=4.0, then what would be the value of D_30 \/D_10 ?
(a) 2.00
(b) 1.25
(c) 1.50
(d) 1.75

Q3. The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm about centroidal axis is _______
(a) 437.5 cm^4
(b) 337.5 cm^4
(c) 237.5 cm^4
(d) 137.5 cm^4

Q4. Bolts are most suitable to carry
(a) shear
(b) bending
(c) axial tension
(d) shear and bending

Q5. What is the mechanical widening required for a pavement of width 7 m. on a horizontal curve of radius 490 m, if the longest wheel base of vehicle expected on the road is 7.0 m?
(a) 0.05 m
(b) 0.07 m
(c) 0.1 m
(d) 0.49 m

Q6. The type of rain-gauge commonly used in India for measuring rainfall is given by:
(a) weighing bucket type rain-gauge
(b) tipping bucket type rain-gauge
(c) floating type rain-gauge
(d) Simon’s rain-gauge

Solutions

S1. Ans.(c)
Sol. The portion of the brick without a triangular corner equal to half the width and half the length is called king closer.

NHPC-JE'21 CE: Daily Practices Quiz. 12-Nov-2021 |_40.1

S2. Ans.(a)
Sol. C_c=1 C_u=4
(D_30 )^2/(D_60 D_10 )=1–(1) D_60/D_10 =4–(2)
Multiply both eq^n
(D_30/D_10 )^2=4 ⇒ ▭(D_30/D_10 =2)

S3. Ans.(d)
Sol. Moment of inertia of follow circular section
I=π/64 ( d_O^4-di_O^4 )
=π/64 (8^4-6^4 )
=137.44 cm^4

S4. Ans.(c)
Sol. Bolts are used as temporary fastenings while rivets are used as permanent fastening. Bolts are primarily design for axial tension.

S5. Ans.(c)
Sol. Given, length of wheel base (l) = 7 m.
Radius (R) = 490 m
No. of lanes (n) = 2
Mechanical widening, W_me = (nl^2)/2R
=(2×(7^2 ))/(2×490)
= 0.1 m

S6. Ans.(d)
Sol.
– Simon rain gauge is a non-recording type of rain gauge and commonly used in India.
– Natural syphon rain gauge is adopted in India. It similar to weighing bucket rain gauge. It is recording type of rain gauge.
– Tipping bucket type of rain gauge is used for measuring rain in remote areas. It is recording type of rain gauge means produce continuous plot of rainfall against time.

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