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Civil Quiz 6
What is say about friction between sample sizes to total item in a lot?
Standard deviation
Sampling fraction
None of the above
Variance
In a screw jcak, the effort required to lower the load is
None of the above
less than
equal to
more than
A ship is berthed in a chamber and lifted by principles of buoyancy, such a chamber is called.
Dry dock
Floating dock
Wet dock
Refuge dock
A map indicates roads, highways, towns and the interrelationship is an ______model
analogue
mathematical
Iconic
none of the above
Originally, Rankine's theory of lateral earth pressure can be applied to only
coarse grained soil
cohesion less soil
fine grained soil
cohesive soil
The rise, in water level, which occurs during the transformation of the unstable shooting flow to the stable streaming flow is called hydraulic jump.
Both A and B
No
Yes
None of the above
What is the product of sectional modulus and allowable bending stress called as?
Moment of resistance
Moment of inertia
Moment of rigidity
Radius of gyration
Which of the following statements is correct with reference to an impeller with backward curved vanes?
It cannot run at speeds other than the design speed.
It has rising head - discharge characteristic
It is easier to fabricate.
It has a falling head - discharge characteristic.
The flow in which conditions do not change with time at any point, is known as
Uniform flow
Steady flow
One dimensional flow
Turbulent flow
A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
2 v
8 v
v
4 v
The variety of pig iron used for manufacture of wrought iron, is
Mottled pig
Bessemer pig
White forge pig
Grey or foundry pig
The lime which contains mainly calcium oxide and slacks with water, is
Poor lime
Quick lime
Fat lime
Hydraulic lime
Self-cleansing velocity is
Velocity at which no accumulation remains in the drains
Velocity at dry weather flow
Velocity of water at flushing
Velocity of water in a pressure filter
In a public building, the stairs should be located near the
toilet
entrance
centre
end
Which of the following gradients exerts maximum influence on properties of steel?
Manganese
Sulphur
Carbon
Iron
LCA associated with a___
Service
Product
Process
All of the above
The end block of a beam has a rectangular section 100mm wide by 200mm deep, the force of cable is 200kn. Find the actual bearing pressure?
40n/mm2
10n/mm2
20n/mm2
30n/mm2
For a catchment area of 120 km2, the equilibrium discharge in m3/hour of an S-curve obtained by the summation of 6 hour unit hydro graph is
7.2 xlO6
0.6 x 106
2.4 xlO6
0.2 x 106
Submerged weight of a body is
equal to its weight in air
greater than its weight in vacuum
greater than its weight in air
less than its weight in air
The process of proper and accurate measurement of all concrete materials for uniformity of proportions and aggregate grading is called
mixing
grading
proportioning
batching
The duty of a crop is 432 hectares per cumec when the base period of the crop is 100 days. The delta for the crop will be
100
864
432
200
A line joining some fixed points on the main survey lines, is called a
base line
check line
none of these
tie line
Most commonly used solvent in oil paints, is
Turpentine
Coal tar
Petroleum
Spirit
Grit chambers of a sewage plant are usually changed after
1 week
1 day
2 weeks
4 weeks
Steel tamping rod of 0.6m length and 16 mm diameter is used for tamping of concrete.
all
TRUE
none
FALSE
If support B settles by 1mm downward, what is direction of rotation at point A?
depends upon loading at point a
can't say
#NAME?
#NAME?
The unit of pressure is ___________.
N/m
no unit
Pa
kN/m3
A strainer type well sunk through three previous layers intervened by three impervious aquicludes, draws water from
Central pervious layer
All the pervious layers
Lowest pervious layer
Top most pervious layer
A transition curve when inserted between the tangent and the circular curve
should meet the original straight tangentially
should meet the circular curve tangentially
the rate of increase of curvature along the transition curve should be same as that of increase of super-elevation
all of the above
The rate of doing work is known as
none of these
potential energy
power
kinetic energy
Minimum thickness of steining should be _________ cm.
35
45
25
30