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RSMSSB-JE’21 CE: Daily Practices Quiz. 28-July-2021

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

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

Q1. Select the most appropriate option that shows the corresponding quadrantal bearing of the whole circle bearing 137°30’.
(a) S42°30’W
(b) S42°30’E
(c) N42°30’W
(d) N42°30’E

Q2. Which of the following tape is least affected by temperature changes and is highly precise-
(a) Linen tape
(b) Metallic tape
(c) Steel tape
(d) Invar tape

Q3. Estimate the quantity of plastering (two faces) for 4 m long, 3m high and 30 cm thick wall.
(a) 72 cum
(b) 2.4 sqm
(c) 24 sqm
(d) 36 cum

Q4. Quick set cement is obtained by:
(a) Reducing C_3 S content
(b) Reducing C_2 S content
(c) Reducing gypsum content
(d) Increasing C_2 S content

Q5. Find the tensile stress of a mild steel rod of 18mm diameter. Given: ultimate load = 9.0 ton.
(a) 0.03 Ton/sq.mm
(b) 0.02 Ton/sq.mm
(c) 0.05 Ton/sq.mm
(d) 0.06 Ton/sq.mm

Q6. The force of attraction between the individual particles bound together is known as
(a) Dilatancy
(b) Adhesive
(c) Cohesion
(d) Internal friction

Solutions

S1. Ans.(b)
Sol. W.C.B = 137°30’
Q.B = ?

RSMSSB-JE'21 CE: Daily Practices Quiz. 28-July-2021 |_30.1

Q.B = 180° – 137° 30’
= S 42°30’ E

S2. Ans.(d)
Sol. Invar tape → It is made up an alloy of steel (64%) and nickel (36%). It has very low coefficient of thermal expansion (0.122 × 10^(-6)/°C). It is used for linear measurement of a very high degree of precision. It is least affected by temperature changes.

S3. Ans.(c)
Sol. Given, Length of wall (L) = 4m.
Height of wall (H) = 3 m.
Area of wall = L × H
= 4 × 3 = 12 m²
Quantity of plaster (two faces) = 2 × 12
= 24 m²

S4. Ans.(c)
Sol. Quick set cement is obtained by Reducing gypsum content. It is used for under water construction. It is gypsum free cement. The initial setting time and final setting time for quick cement is 5 min and 30 min. respectively.

S5. Ans.(a)
Sol. Diameter = 18 mm
Ultimate load = 9.0 ton
Tensile stress = (9.0 ton)/(π/4×18²)
= 0.035 ton/mm²

S6. Ans.(b)
Sol. Adhesion → It is an attractive force between different kind of fluid molecules.
Cohesion → It is an attractive force between same kind of fluid molecules.

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