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
Each question carries 1 mark
Negative marking: 1/4 mark
Time: 8 Minutes
Q1. Minimum reinforcement in circular concrete column as per IS – 456 is –
(a) 4 bars of 12 mm
(b) Greater 0.80% of cross – sectional area 4 bars of 12 mm
(c) 6 bars of 12 mm
(d) Greater of 0.80% of cross – sectional area and 6 bars of 12 mm
Q2. Which one of the following would help prevent the escape of foul sewer gases from a water closet?
(a) Vent pipe
(b) Gully trap
(c) Air gap
(d) None of these
Q3. Quick setting cement is produced by adding ______.
(a) Less amount of gypsum in very fine powdered form
(b) More amount of gypsum in very fine powdered form
(c) Aluminium sulphate in very fine powdered form
(d) Pozzolana in very fine powdered form
Q4. A test facility setup costs Rs 10,00,000 at the time of installation, and its scrap value is Rs 50,000 at the end of the useful life in 10 years. Adopting a straight-line method for computation of depreciation, estimate the book value of the facility.
(a) Rs 5,00,000
(b) Rs 5,25,000
(c) Rs 4,75,000
(d) Rs 5, 75, 000
Q5. A given piece of land is said to be waterlogged when:
(a) There is a water flowing on the land surface
(b) Capillary fringe reaches the root zone of plants
(c) Gravity drainage has ceased
(d) The permanent wilting point is reached
Q6. Radius of curvature of a stressed beam and modulus of elasticity
(a) are directly proportional
(b) are inversely proportional
(c) are curvilinear related
(d) have unpredictable relationship
Sol. → Minimum % reinforcement in column = 0.8% of gross area
→ Maximum % reinforcement = 4% of gross area (if bars are lapped)
→ 6% of gross area (it bars are not lapped)
→ No. of bars in circular column equal to ‘6’
→ No. of bars in rectangular column equal to ‘4’
Sol. Intercepting trap is used to prevent entry of foul sewer gases into the water closet by providing a water seal.
Sol. Quick Setting Cement as the name indicates, these types of cements are used where quick setting is needed. The quick setting cement is manufactured by adding a small percentage of aluminum sulphate and then it is finely grinded with cement. The Initial setting time of quick setting cement is 5 minutes and Final setting time is 30 minutes.
Sol. Given, Total cost (C) = 10,00,000 Rs
Scrap value (S) = 50,000 Rs
Design life (n) = 10 years
Annual depreciation by straight line Method→
Depreciation value after – 5 years = 5 × 95000
= 4,75,000 Rs.
Book value after 5 years = 10,00,000 – 4,75,000
Sol. A given piece of land is said to be water logged when
– Capillary fringe reaches the root zone of plants.
– Due to rise of water table up to ground level.
– Area is full of salinity.
Sol. Bending equation
▭(R α E)