Civil Engineering - Comprehensive Mock Test 1

Question 1 Hard

The correct relationship between theoretical oxygen demand (TOD) , biochemical oxygen demand(BOD) , chemical oxygen demand(COD) is given by:

A) TOD> BOD>COD B) COD> BOD> TOD C) TOD> COD> BOD D) BOD> COD> TOD

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Solution Breakdown:

Concept:

Question 2 Medium

for Gas the viscosity with respect to temperature is given by?

A) μ = μ0(1 + αt + βt²) B) μ = μ0 + αt - βt² C) μ = μ0(1 + αt - βt²) D) μ = μ0/(1 + αt + βt²)

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Solution Breakdown:

No Details

Question 3 Easy

Density of Sleeper is depend upon which factors?

A) Axle Load and speed of train B) Type and section of rail C) Depth of Ballast cushion D) All of Above

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Solution Breakdown:

No Details

Question 4 Easy

The Nationalisation of Railway started on?

A) 1908 B) 1921 C) 1923 D) 1905

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Solution Breakdown:

No Details

Question 5 Medium

The Railway board was established with one president and two members on?

A) 1908 B) 1905 C) 1906 D) 1907

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Solution Breakdown:

No Details

Question 6 Hard

Find the young Modulus of a brass rod of diameter 25 mm and of length 250mm which is subjected to a tensile load of 50kN when the extension of the rod is equal to 0.3 mm.?

A) 80526 B) 86134 C) 84925 D) 82520

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Solution Breakdown:

stress = force/area = 50000N/0.785 x 25 x 25 = 101.91 N/sq(mm)

Question 7 Hard

A rod of 150cm long and of diameter 2.0 cm is subjected to an axial pullof 20kN. If the modulus of elasticity of the material of the rod is 2 x 10^5 N/sq(mm), determine strain?

A) 0.000318 B) 0.00318 C) 0.0000318 D) 0.0318

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Solution Breakdown:

we know that,

Question 8 Easy

what is the M.K.S unit of stress?

A) N/sq(mm) B) kgf/sq(m) C) kg/mm D) kg/sq(m)

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Solution Breakdown:

No Details

Question 9 Easy

what is stress?

A) force per unit area B) force per unit length C) pressure per unit area D) pressure per unit volume

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Solution Breakdown:

The force of resistance per unit area , offered by a body against deformation is known as stress. The external force acting on the body is called the load or force. The load is applied on the body while the stress is induced in the material of the body. A loaded member remains in equilibrium when the resistance offered by the member against the deformation and the applied load are equal.

Question 10 Medium

The average height of troposphere from surface is ______ km?

A) 11 B) 12 C) 13 D) 14

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Solution Breakdown:

No Details