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NHPC-JE’21 CE: Daily Practices Quiz. 27-Sep-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. 1 sq. yard = ……… sq. feet.
(a) 144
(b) 9
(c) 10
(d) 40

Q2. One micron is equal to
(a) 10^(-6) mm
(b) 10^(-8) mm
(c) 10^(-3) mm
(d) 10^(-10) mm

Q3. The expected out turn (Square meter) of sawing of the soft wood per mason per day is ……..
(a) 2.5
(b) 5.5
(c) 8.5
(d) 10

Q4. In estimating the cost for earthwork excavation normally and extra rate is provided for every lead of and lift of –
(a) 30 cm, 1.5 cm
(b) 45m, 2m
(c) 30m, 3m
(d) 30m, 1.5m

Q5. A 30m metric chain is found to be 0.1m too short throughout the measurement. If the distance measured is recorded as 300m, then the actual distance measured will be
(a) 300.1 m
(b) 301.0 m
(c) 299 m
(d) 310 m

Q6. A soil has percentage air voids of the order of 30%. It has a porosity of 0.4 the air content of that soil shall be:
(a) 0.75
(b) 0.12
(c) 1.33
(d) 0.70

Solutions

S1. Ans.(b)
Sol. 1sq. yard = 9 sq. feet
1sq. meter = 1.196 sq. yards
1sq. feet = 0.0929 sq. meter
1 nautical mile = 1853m = 1.853 km.
1 meter = 1.094 yard

S2. Ans.(c)
Sol.
▭(1 micron=10^(-3) mm=10^(-6) m.)

S3. Ans.(b)
Sol. The expected out turn task of sawing wood is
→ For Hard wood ⇒ 4 m²
→ For Soft wood ⇒ 6 m²

S4. Ans.(d)
Sol. In estimating the cost for extra work excavation normally an extra rate is provided for ever lead of 30 m. and lift of 1.5 m.

S5. Ans.(c)
Sol. Given,
True length of Tape (l) = 30 m.
Wrong length of line (L’) = 300 m.
Actual length of Tape (l’) = 30 – 0.1 = 29.9 m.
True length of line (L) =?
L × l = L’ × l’
L × 30 = 300 × 29.9
▭(L=299m.)

S6. Ans.(a)
Sol. percentage air void (η_a ) = 30%
Porosity (n) = 0.4
Air content (a_c) =?
η_a = na_c
0.30 = 0.4 × a_c
▭(a_c=0.75)

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