RSMSSB-JE'21 CE: Daily Practices Quiz. 16-Aug-2021 |_00.1
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RSMSSB-JE’21 CE: Daily Practices Quiz. 16-Aug-2021

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

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

Q1. Property of a fluid at zero temperature is referred to as _________.
(a) Stagnation property
(b) Standard property
(c) Simple property
(d) None of these

Q2. Which of the following statements is CORRECT for the modulus of resilience?
(a) it is the ratio of maximum stress energy and unit volume
(b) it is the ratio of maximum strain energy and unit volume
(c) it is the ratio of proof resilience and unit volume
(d) it is the ratio of proof resilience and unit area

Q3. A steel plate is 30 cm wide and 10 mm thick. A river of nominal diameter of 18 mm is driver. The net sectional area of plate is
(a) 18.00 cm²
(b) 28.20 cm²
(c) 28.05 cm²
(d) 32.42 cm²

Q4. The height of the dowel above the road level should not be more than:
(a) 10 cm
(b) 20 cm
(c) 30 cm
(d) 40 cm

Q5. ________ is the apparatus in which turbidity is measured as a function of intensity of light scattered as it passes through the water sample.
(a) Barometer
(b) Tintometer
(c) Colorimeter
(d) Nephelometer

Q6. The ultimate bearing capacity of a soil is 300 kN/m². Choosing a factor of safety as 2.5, depth of foundation is 1m & unit weight of soil is 20 kN/m². the net safe bearing capacity is
(a) 110 kN/m²
(b) 112 kN/m²
(c) 80 kN/m²
(d) 100.5 kN/m²

Solutions

S1. Ans.(a)
Sol. The property at which it’s all energy measured at its static condition. When a fluid having zero velocity is the condition of stagnation. then its K.E, is zero and K.E. is function of absolute temp. so at zero absolute temp. property of fluid is known as stagnation property.

S2. Ans.(c)
Sol. Modulus of Resilience defined as the ratio of proof resilience and unit volume or we can say that it is the maximum strain energy up to the elastic limit (i.e., without any permanent deformation) per unit volume.

S3. Ans.(c)
Sol. plate thickness (t) = 10 mm
Width of plate (B) = 30 cm = 300 mm
Diameter of rivet (d) = 18 mm
Diameter of hole (do) = 18+1.5
= 19.5 mm
Net sectional area (A_net) = (B – do) × t
= (300 – 19.5) ×10
= 280.5 ×10
= 280.5 mm²
= 28.05 cm²

S4. Ans.(c)
Sol. Dowel bare are used in expansion joints. The height of the dowel above the road level should not be more than 30cm.

S5. Ans.(d)
Sol. Nephelometer is the apparatus in which turbidity is measured as a function of intensity of light scattered as it passes through the water sample.

S6. Ans.(b)
Sol. Ultimate bearing capacity (q_u ) = 300 kN/m²
Net safe bearing capacity (q_ns ) =?
q_ns=q_nu/f=(q_u-σ ̅)/f=(q_u-r_(D_f ))/f
q_ns=(300-20×1)/2.5=112 kN\/m^2

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