RSMSSB-JE'21 CE: Daily Practices Quiz. 31-July-2021 |_00.1
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RSMSSB-JE’21 CE: Daily Practices Quiz. 31-July-2021

Quiz: Civil Engineering
Exam: RSMSSB-JEn
Topic: Miscellaneous

Each question carries 1 mark
Negative marking: 1/3 mark
Time: 8 Minutes

Q1. A rod of dimension 20 mm × 20 mm is carrying an axial tensile load of 10 kN. If the modulus of elasticity is 250 MPa. Then the strain induced due to this load would be __________.
(a) 0.1
(b) 0.25
(c) 0.2
(d) 10

Q2 Which of the following represents the approximate overflow rate (liters/hours/m²) for the plain sedimentation tank?
(a) 500 – 750
(b) 800 – 1200
(c) 1200 – 1520
(d) 1650 – 2500

Q3. The spacing of main bars in a RCC slab shall not be more than:
(a) Three times the effective depth of the slab or 300 mm whichever is less
(b) Four times the effective depth of the slab or 450 mm whichever is less
(c) Three times the total depth of the slab or 300 mm whichever is less
(d) 300 mm

Q4. Which of the following surveys is carried out to locate the premises, streets, water supply and sanitary system?
(a) City survey
(b) Local survey
(c) Topographical survey
(d) Engineering survey

Q5. In stone masonry, the stones are placed in position such that the natural bedding plane is
(a) Normal to the direction of pressure they carry
(b) Parallel the direction of pressure they carry
(c) At 45° to the direction of pressure they carry
(d) At 60° to the direction of pressure they carry 0

Q6. The task work per day for RCC items is
(a) 3m³/mason/day
(b) 1.33 m³/mason/day
(c) 5 m³/mason/day
(d) 1 m³ /mason/day

Solutions
S1. Ans.(a)
Sol. Given that
P = 10 kN
A = 20 × 20 mm²
E = 250 MPa
We know that
δL=PL/AE
δL/L=P/AE
Strain=(10×10^3)/(20×20×10^(-6)×250×10^6 )
Strain =0.1

S2. Ans.(a)
Sol. Surface overflow rate for plain sedimentation tank is 12,000 to 18,000 l/day/m² or 500 to 750 l/hours/m² while surface overflow rate for sedimentation with coagulation is 24,000 to 30,000 l/day/m² or 1000 to 1250 l/hours/m².

S3. Ans.(a)
Sol. Maximum Spacing in bar –
(i) For Main bar-
Maximum spacing ≯ 3d (or) 300 mm

(ii) For Distribution bar-
Maximum spacing ≯ 4d (or) 450 mm
Where – d→ effective depth

S4. Ans.(a)
Sol. City survey → It is carried out to locate the premises, streets, water supply and sanitary system.
Cadastral survey → This survey is used to fixing the boundaries of field or define the property line.
Topographical survey→ This survey is used to know about the topography of area such as man-made features and natural features like rivers, mountains, valley etc.

S5. Ans.(a)
Sol. In stone masonry, the stones are placed in position such that the natural bedding plane is normal to the direction of pressure they carry. The stone used in stone masonry should be hard, strong and durable.

S6. Ans.(a)
Sol.

Work Per mason per day work
1. RCC work 3m³
2. Reinforced brick work 1m³
3. Work in foundation with cement concrete/ lime 1.25 m³
4. Brick work in foundation and plinth 1.25 m³
5. Work in superstructure with cement concrete/lime 1 m³

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