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NHPC-JE’21 CE: Daily Practices Quiz. 11-Oct-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
Topic: Miscellaneous

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

Q1. What shall be the pressure intensity inside a soap bubble of radius 4 cm? (Surface tension of water is 0.0736 N/m):
(a) 7.36 N/m^2
(b) 1.84 N/m^2
(c) 3.68 N/m^2
(d) None of these

Q2. Loam is
(a) A mixture of sand, silt and clay
(b) A mixture of gravel, sand and silt
(c) An impure form of limestone
(d) Is a wind blow deposit

Q3. The activity of batching in production of concrete refers to:
(a) Weighing of all ingredients within the acceptable tolerances for all batches
(b) Weighing of all ingredients
(c) Most accurate weighing of cement & water that influence strength of concrete
(d)Measuring the workability of concrete

Q4. A type of valve which provided at the corner of roads to control the flow of water at the cross section of the distribution system is called?
(a) Safety valve
(b) Scour valve
(c) Sluice valve
(d) check valve

Q5. Which one of the following is the largest scale?
(a) 1 : 500
(b) 1 : 1000
(c) 1 : 2500
(d) 1 : 50,000

Q6. Which of the following is the correct sequence of the parts of a canal system?
(a) Head works, distributary and minor
(b) Head works, main canal and minor
(c) Head works, main canal, branch canal, distributary and minor
(d) None of the above


S1. Ans.(a)
Sol. Surface tension (σ)=0.0736 N/m
Radios (r)=4cm
Pressure intensity inside soap bubble ⇒ 4σ/r
=(4×0.0736)/(4×10^(-2) )
=7.36 N\/m^2

S2. Ans.(a)
Sol. Loam is a mixture of sand, silt and clay.

S3. Ans.(a)
Sol. Batching→ It is the process of proper and accurate measurement of concrete ingredients. It is either done by mass or volume batching.

S4. Ans.(c)
Sol. Sluice value or gate value are provided at the corner of roads which control and regulate the flow of water at the cross-section of the distribution system.

S5. Ans.(a)
Sol. Arrangement of scale from largest to smallest.
Hence, 1∶500 is the largest scale.

S6. Ans.(c)
Sol. Correct sequence of the parts of a canal system is
Head works → main canal → Branch canal → Distributary → Minor.

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