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For the following questions answer them individually
Optimum moisture content is obtained from:
triaxial test
standard proctor test
consolidation test
hydrometer test
The effective size of particles of soil is denoted by:
$$D_{10}$$
$$D_{20}$$
$$D_{30}$$
$$D_{60}$$
When the plasticity index of a soil is zero, the soil is:
Clay
Silt
Sand
Silty sand
Francis turbine is:
a reaction turbine
an impulse turbine
a tangential flow impulse turbine
an axial flow turbine
Most economical circular channel gives maximum discharge while:
flow depth = 0.95 diameter
flow velocity high
area of flow is full
wetted perimeter is least
Two pipe systems are said to be equivalent when:
they carry same discharge
they are satisfying Bernoulli’s theorem
both have same head loss and discharge values
they are of same length and having same head loss
The specific speed of a pump is defined as the speed of a unit of such a size that it discharges:
unit discharge at unit power
unit work at unit head loss
unit discharge at unit head
unit volume at unit time
The dimensions of Chezy’s C is:
non-dimensional
$$\frac{L}{T}$$
$$LT$$
$$\left[\frac{L}{T^2}\right]^{\frac{1}{2}}$$
The velocity distribution for turbulent flow through circular pipes is:
uniform
linear
parabolic
logarithmic
With increase in temperature the viscosity of air and water varies as:
viscosity of air increases and viscocity of water decreases
viscosity of air increases and viscocity of water increases
viscosity of air decreases and viscocity of water decreases
viscosity of air decreases and viscocity of water increases
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