LMRC 2018 Civil Engineering Quiz 3

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Question 1

The average spacing between vehicles in a traffic stream is 50 m, then the density (in veh/km) of the stream is_______

• A10
• B15
• C25
• D20

Question 2

The general requirement in constructing a reinforced concrete road is to place a single layer of reinforcement

• ANear the bottom of the slab
• BNear the top of the slab
• CAt the middle
• DEqually distributed at the top and bottom

Question 3

Water surface slope (dy/dx) in case of uniform flow in an open channel is

• A0
• B1
• C100
• DInfinity

Question 4

If the length of the column is increased 5 times, the critical load becomes

• A
• B
• C
• D5 times of P

Question 5

An elastic bar of length L, uniform cross sectional area A, coefficient of thermal expansion , and Young’s modulus E is fixed at the two ends. The temperature of the bar is increased by T, resulting in an axial stress σ. Keeping all other parameters unchanged, if the length of the bar is doubled, the axial stress would be

• A
• B
• C
• D

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