Legal Metrology • 2018 • Civil Engineering Paper-II
Surface tension of water
A)
Increases with decrease in temperature
B)
Decreases with decrease in temperature
C)
Increases with increase in temperature
D)
Independent of temperature
The correct choice is A (Increases with decrease in temperature), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Steel pipes are
A)
Easily affected by acidic and alkaline atmospheric effects
B)
Enable to withstand high negative pressure
C)
Liable to quick rusting
D)
All of these
The correct choice is D (All of these), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Dissolved oxygen in streams is
A)
Minimum at noon
B)
maximum at noon
C)
maximum at midnight
D)
same throughout the day
The correct choice is B (maximum at noon), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Zone of aeration in a ground profile does not include
A)
Capillary zone
B)
Intermediate zone
C)
Saturation zone
D)
Soil water zone
The correct choice is C (Saturation zone), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
For a given discharge in an open channel, there are two depths which have the same specific energy. These two depths are known as
A)
alternate depths
B)
critical depths
C)
normal depths
D)
sequent depths
The correct choice is A (alternate depths), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
A person standing on the bank of a canal drops a stone on the water surface. He notices that the disturbance on the water surface is not travelling upstream. This is because the flow in the canal is
A)
sub-critical
B)
super-critical
C)
steady
D)
uniform
Correct option B: super-critical.
Legal Metrology • 2018 • Civil Engineering Paper-II
If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to
A)
Non-carbonate hardness
B)
Total alkalinity
C)
Total hardness
D)
Total hardness- total alkalinity
The correct choice is B (Total alkalinity), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
A watershed got transformed from rural to urban over a period of time. The effect of urbanization on storm runoff hydrograph from, the watershed is to
A)
decrease the volume of runoff
B)
increase the time to peak discharge
C)
decrease the time base
D)
decrease the peak discharge
The correct choice is C (decrease the time base), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
The diameter of a circular sewer laid at a slope of 1 in 400 when it is running half full and with a velocity of 1.9 m/s (n in manning’s formula = 0.012) will be
A)
0.012 m
B)
0.70 m
C)
1.12 m
D)
1.23 m
The correct choice is B (0.70 m), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Cavitations is caused by
A)
High pressure
B)
High temperature
C)
High velocity
D)
Low pressure
The correct choice is D (Low pressure), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Turbulent flow generally occurs
A)
At very low velocities
B)
In flows of high viscous fluids
C)
In flows through very narrow passages
D)
In flow at high velocities through large passage
The correct choice is D (In flow at high velocities through large passage), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
The organism, which exhibits very nearly the characteristics of an ideal pathogenic indicator is
A)
Entamoeba histolytica
B)
Escherichia coli
C)
Salmonella typhi
D)
Vibrio comma
The correct choice is B (Escherichia coli), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
In steady flow of a fluid,the total acceleration of any fluid particle
A)
Is never zero
B)
Is always zero
C)
Can be zero
D)
None of these
The correct choice is C (Can be zero), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
For a given discharge, the critical flow depth in an open channel depends on
A)
channel geometry only
B)
channel geometry and bed slope
C)
channel geometry, bed slope and roughness
D)
channel geometry, bed slope, roughness and Reynolds number
The correct choice is A (channel geometry only), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Two biodegradable components of municipal solid waste are
A)
plastics and wood
B)
cardboard and glass
C)
leather and tin cans
D)
food wastes and garden trimmings
Correct option D: food wastes and garden trimmings.
Legal Metrology • 2018 • Civil Engineering Paper-II
In a domestic wastewater sample, COD and BOD were measured. Generally which of the following statement is true for their relative magnitude?
A)
COD = BOD
B)
COD > BOD
C)
COD < BOD
D)
Nothing can be said
The correct choice is B (COD > BOD), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
Fluids change the volume under external pressure due to
A)
plasticity
B)
viscosity
C)
compressibility
D)
none of these
The correct choice is C (compressibility), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
A polluted stream undergoes self purification in four district zones:
I. Zone of clear water
II. Zone of active decomposition
III. Zone of Degradation
IV. Zone of recovery
Correct sequence is:
A)
II, III, IV, I
B)
II, IV, III, I
C)
III, II, IV, I
D)
IV, III, II,I
Correct option C: III, II, IV, I.
Legal Metrology • 2018 • Civil Engineering Paper-II
Shear stress develops in a fluid element, if
A)
The fluid is at rest
B)
The fluid container is subjected to uniform linear acceleration
C)
The fluid is inviscid
D)
The fluid is viscous and the flow is non-uniform
The correct choice is D (The fluid is viscous and the flow is non-uniform), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-II
The locus of elevations that water will rise in a series of pitot tubes is called
A)
The energy grade line
B)
The hydraulic grade line
C)
The pressure head
D)
The velocity head
The correct choice is B. The sequence follows the numerical pattern described in the question, giving The hydraulic grade line.
Legal Metrology • 2018 • Civil Engineering Paper-II
Algae dies out, though fish life may survive, in a river zone, known as
A)
Zone of clear water
B)
Zone of active decomposition
C)
Zone of Degradation
D)
Zone of recovery
The correct choice is B (Zone of active decomposition), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I
The quality of concrete is appropriately defined as the
A)
Assurance that all aspects of materials, equipment and workmanship are well looked after
B)
Assurance for the safety and serviceability of structure
C)
Conformity to the specifications, no more no less
D)
Quality of overall workmanship and supervision at the site
The correct choice is C (Conformity to the specifications, no more no less), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I
In a thin spherical shell, the hoop stress is given by
A)
pd/4t
B)
pd/2t
C)
pd/t
D)
2pd/t
The correct choice is A (pd/4t), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I
The square root of the ratio of moment of inertia of the cross-section to its cross- sectional area is called
A)
second moment of area
B)
slenderness ratio
C)
section modulus
D)
radius of gyration
Correct option D: radius of gyration.
Legal Metrology • 2018 • Civil Engineering Paper-I
Wobble effect is related with
A)
creep of concrete
B)
Frictional loss
C)
creep of steel
D)
shrinkage of concrete
The correct choice is B (Frictional loss), consistent with standard C++ language rules.
