As RSMSSB JE exam date 2021 is announced which is going to be held on 12th September 2021. As RSMSSB JE exam date 2021 is nearby so boost your preparation by attempt this Civil Engineering miscellaneous quiz for RSMSSB JE recruitment 2021.
Quiz: Civil Engineering
Each question carries 1 mark
Negative marking: 1/3 mark
Time: 8 Minutes
Q1. Piles which are driven into the ground until a hard stratum is reached are termed as ________.
(a) Friction piles
(b) Bearing piles
(c) Sheet piles
(d) Batter piles
Q2. Modular ratio is denoted by:
(a) m=280/(3σ_cbc )
(b) m=280/(5σ_cbc )
(c) m=2800/(3σ_cbc )
(d) m=300/(3σ_cbc )
Q3. The most effective farming method for returning minerals to the soil is
(a) Contour ploughing
(c) Crop rotation
Q4. If 375 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is
Q5. In cements, generally the increase in strength during a period of 14 days to 28 days is primarily due to
(a) C_3 A
(b) C_2 S
(c) C_3 S
(d) C_4 AF
Q6. The viscosity of a gas
(a) Decreases with increase in temperature
(b) Increases with increases in temperature
(c) Is independent of temperature
(d) Is independent of pressure for very high-pressure intensities
Sol. Pile on the basis of their action –
End bearing pile – these piles are driven until a hard stratum is reached. These pile rest stiff or hard strata.
Friction pile – such piles are driven in soft clay or loose sand.
Sol. ▭(Modular Ratio (m)=280/(3σ_cbc ))
σ_cbc = Permissible stress in concrete in bending compression.
Sol. Crop rotation is the method of growing of crops one after another to improve the fertility of land and returning minerals to the soil.
Sol. Weight of cement paste = 1875 gm.
Weight of water = 375 gm
Weight of cement = 1875-375 = 1500 gm.
Percentage of water (%) = 375/1500×100=25%
Sol. In cements, generally the increase in strength during a period of 14 days to 28 days is primarily due to tricalcium silicate 〖(C〗_3 S). C_3 S is responsible to early strength in cement.
Sol. As we know that
⇒ With increasing temp. viscosity of liquid decrease because as we increase the temperature which cause decreases the cohesive forces between modulus so that viscosity is decrease
⇒ with increasing temp. viscosity of gas increases because as we increase the temp. which cause increase the rate of molecules momentum transfer which is the main reason of viscous forces within the gases. So that viscosity in increase.