Quiz: Civil Engineering
Exam: SSC-JE
Topic: Miscellaneous
Each question carries 1 mark
Negative marking: 1/4 mark
Time: 10 Minutes
Q1. The resistance offered to slipping of steel bars in concrete is due to
(a) Mechanical resistance
(b) Frictional resistance
(c) Adhesion
(d) All of the above
Q2. Which of the following process includes chlorination of water above the break point?
(a) Excess chlorination
(b) Super chlorination
(c) Plain chlorination
(d) De-chlorination
Q3. Which one of the following method is used for the approximate estimation?
(a) Both central line and short wall and long wall method
(b) Central line method
(c) Plinth area method
(d) Short wall and long wall method
Q4. Inside pressure in a hollow soap bubble in the air is: (where d is the diameter of the bubble)
(a)
(b)
(c)
(d)
Q5. For circular curve of radius 200 m, the coefficient of lateral friction of 0.15 and the design speed is 40 kmph. The equilibrium super elevation would be?
(a) 21.3
(b) 7
(c) 6.3
(d) 4.6
Q6. The difference in elevation between top of the dam and normal reservoir level is called as
(a) Minimum free board
(b) Maximum free board
(c) Critical free board ‘
(d) Normal free board
Q7. Which of the following methods is more suitable for the determination of permeability of clayey soil?
(a) Constant head method
(b) Falling head method
(c) Horizontal permeability test
(d) None of these
Q8. If a load of 40 KN is applied in a compressive manner on a rod whose cross section is 10 mm ×20mm, then what will be the compressive stress on the rod in MPa?
(a) 0.2
(b) 2
(c) 20
(d) 200
Q9. Which of the following is one of the methods of analysis prescribed in the code for steel structures?
(a) Hinge Analysis
(b) Limit Analysis
(c) Roller Analysis
(d) Dynamic Analysis
Q10. The length of a line measured with a 20 m chain was found to be 250 m. Calculate the true length of the line if the chain was 10 cm too long.
(a) 252.25 m
(b) 251.25 m
(c) 225.25 m
(d) 221.25 m
Solutions
S1. Ans.(d)
Sol. Resistance offered by steel and concrete to avoid the relative movement between steel and concrete depends upon-
(a) Adhesive resistance
(b) frictional resistance
(c) Mechanical resistance
S2. Ans.(b)
Sol. When excess chlorine (5-15 mg/l) is added in water during epidemic such that it gives a residual of 1-2 mg/l beyond breakpoint is called super chlorination.
S3. Ans.(c)
Sol. The approximate estimate is prepared from the practical knowledge and cost of similar projects. There are some methods for the approximation estimate.
Plinth area method
Unit base method
Cubical contents method
S4. Ans.(d)
Sol. → The pressure inside in a hollow soap bubble in the air is 8σ/d.
→ The pressure inside in water droplet is 4σ/d.
→ The pressure inside in liquid jet is 2σ/d.
Where, d = diameter
σ= Surface tension
S5. Ans.(c)
Sol. Given,
R=200 m.
f=0.15
v=40 kmph
e_(eq^m )= ?
e_equilibrium=V^2/127R
=(40)^2/(127×200)
=0.0629
=6.29%≈6.3%
S6. Ans.(d)
Sol. The difference in elevation between top of the dam and normal reservoir level is called as normal free board.
S7. Ans.(b)
Sol. Variable head or falling head permeability test is suitable for the determining the permeability of clayey soil.
▭(k=2.303 a/A L/t log_10 (h_1/h_2 ) )
S8. Ans.(d)
Sol. Given,
P=40 kN=40×10^3 N
A=10×20 mm^2
σ= ?
σ=P/A
=(40×10^3)/(10×20)
▭(σ=200 MPa)
S9. Ans.(d)
Sol. Code suggests the use of any of the following methods for steel structures:
→ Elastic analysis
→ Plastic analysis
→ Dynamic analysis
→ Advanced analysis.
S10. Ans.(b)
Sol. Given,
Correct length of chain (l)=20m.
Incorrect length of measured line (L^’)=250m
Incorrect length of chain (l^’)=20.10 m
Correct length of measured line (L)= ?
L×l=L^’×l^’
L×20=250×20.10
L=(250×20.01)/20
▭(L=251.25m)
