← Legal Metrology

Past Questions — 2018

Legal Metrology • 2018 • Civil Engineering Paper-I

A surface water tank will be economical if its shape is

A) square
B) circular
C) rectangle
D) all of these
The correct choice is B (circular), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

For a beam having a point load at the mid-span, the ratio of deflection when the two ends are simply supported to when they are fixed is

A) 2
B) 3
C) 4
D) 5
Correct option C: 4.
Legal Metrology • 2018 • Civil Engineering Paper-I

At a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is

A) 7 km/hrs
B) 2 km/hrs
C) 1 km/hrs
D) 10 km/hrs
The correct choice is D (10 km/hrs), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

The compacting factor test of cement concrete determines its

A) Degree of compacting under loads
B) Porosity
C) Strength
D) Workability
The correct choice is D (Workability), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

When designing steel structures, one must ensure that local buckling in webs dos not take place. This check may not be very critical when using rolled steel sections because

A) quality control at the time of manufacture of rolled sections is very good
B) web depths available are small
C) web stiffeners are in built in rolled sections
D) depth to thickness ratio (of the web) are appropriately adjusted
Correct option D: depth to thickness ratio (of the web) are appropriately adjusted.
Legal Metrology • 2018 • Civil Engineering Paper-I

Which of the following material has the highest value of Poisson’s ratio?

A) Wood
B) Steel
C) Rubber
D) Aluminium
The correct choice is C (Rubber), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

In the theory of plastic bending of beams, the ratio of plastic moment to yield moment is called

A) shape factor
B) plastic section modulus
C) modulus of resilience
D) rigidity modulus
The correct choice is A (shape factor), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

Deflection can be controlled by using the appropriate

A) Aspect ratio
B) Modular ratio
C) Span/depth ratio
D) Water/cement ratio
Correct option C: Span/depth ratio.
Legal Metrology • 2018 • Civil Engineering Paper-I

The design shear strength of concrete depends on

A) area of longitudinal steel provided
B) area of shear stirrups provided
C) spacing of shear reinforcement
D) none of these
The correct choice is A (area of longitudinal steel provided), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

Area under the stress-strain curve represents

A) Strain energy density of the material
B) Limiting value of failure stress
C) Limiting value of failure strain
D) Work done on body
Correct option A: Strain energy density of the material.
Legal Metrology • 2018 • Civil Engineering Paper-I

A second class brick should have a minimum crushing strength of:

A) 5.5 MN per Meter Square
B) 7.0 MN per Meter Square
C) 7.5 MN per Meter Square
D) 10.5 MN per Meter Square
The correct choice is B (7.0 MN per Meter Square), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

As per Indian standard code of practice for prestressed concrete (IS : 1343-1980) the minimum grades of concrete to be used for post-tensioned and pre-tensioned structural elements are respectively.

A) m20 for both
B) m40 and m30
C) m15 and m20
D) m30 and m40
The correct choice is B (m40 and m30), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

The centre of gravity of a triangle is at the point where three

A) medians of the triangle meet
B) perpendicular bisectors of the sides of the triangle meet
C) bisectors of the angle of the triangle meet
D) none of these
The correct choice is A (medians of the triangle meet), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

The loss of pre-stress due to shrinkage of concrete is the product of

A) Modular ratio and percentage of steel
B) Modulus of elasticity of concrete and shrinkage of concrete
C) Modulus of elasticity of steel and shrinkage of concrete
D) Modular ratio and modulus of elasticity of steel
The correct choice is C (Modulus of elasticity of steel and shrinkage of concrete), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

In limit state approach, spacing of main reinforcement controls primarily,

A) Collapse
B) Cracking
C) Deflection
D) Durability
The correct choice is B (Cracking), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

The following compounds may be used as inhibitors of iron corrosion

A) Calcium and sodium chlorides
B) Calcium sulfate
C) Potassium dichromate, zinc and lead chromates
D) Fly ash
The correct choice is C (Potassium dichromate, zinc and lead chromates), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

In RCC column, if ties are not provided, the column is likely to

A) Fail by buckling
B) Fail by crushing
C) behave like a beam
D) none of these
Correct option A: Fail by buckling.
Legal Metrology • 2018 • Civil Engineering Paper-I

1 MPa is equal to

A) 1 N/m2
B) 1N/mm2
C) 1kN/m2
D) 1kN/mm2
The correct choice is B (1N/mm2), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

An ISMB 500 is used as a beam in a multi-storey construction. From the viewpoint of structural design, it can be considered to be ‘laterally restrained’ when

A) the tension flange is ‘laterally restrained’
B) the compression flange is ‘laterally restained’
C) the web is adequately stiffened
D) the conditions in a and c are met
Correct option B: the compression flange is ‘laterally restained’.
Legal Metrology • 2018 • Civil Engineering Paper-I

In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridonial force is always

A) zero
B) tensile
C) compressive
D) shear
Correct option C: compressive.
Legal Metrology • 2018 • Civil Engineering Paper-I

The forces which meet at one point and have their lines of action in different planes are called

A) coplaner non-concurrent forces
B) non-coplaner concurrent forces
C) non-coplaner non-current forces
D) intersecting forces
The correct choice is B (non-coplaner concurrent forces), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

The moisture content of a well-seasoned timber is

A) 4% - 8%
B) 10% - 12%
C) 16% - 20%
D) 30% - 40%
Correct option B: 10% - 12%.
Legal Metrology • 2018 • Civil Engineering Paper-I

Which one is not a harmful ingredient in brick earth?

A) lime
B) alkalies
C) iron pyrites
D) silica
The correct choice is A (lime), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

In a steel plate with bolted connection, the rupture of the net section is a mode of failure under

A) tension
B) compression
C) flexure
D) shear
The correct choice is A (tension), consistent with standard C++ language rules.
Legal Metrology • 2018 • Civil Engineering Paper-I

Primary unknown in case of flexibility method is

A) Forces
B) Displacement
C) Both (a) & (b)
D) None of these
Correct option A: Forces.