← MES Jr. Grade
Past Questions — 2020
What does Turbidity of raw water measure?
A)
Suspended solids
B)
Acidity of water
C)
B.O.D
D)
Repair Work
Turbidity indicates the cloudiness or haziness of water caused mainly by fine suspended particles such as silt, clay, organic matter, and microorganisms. Therefore, it measures suspended solids in raw water. Acidity is measured by pH, B.O.D. measures oxygen demand due to biodegradable organic matter, and repair work is unrelated.
Aeration of water is done to remove
A)
Odour
B)
Colour
C)
Bacteria
D)
Hardness
Aeration is the process of bringing water into contact with air to remove dissolved gases and volatile substances, especially those causing bad taste and odour. It is commonly used to strip off gases like hydrogen sulfide and improve water quality. It does not remove colour, bacteria, or hardness directly.
What does HYSD stand for in reinforcement bars?
A)
High Yield Strength Deformed
B)
High Yield Strong Deformed
C)
Highest Yield Strength Deformed
D)
Hard Yield Strength Deformed
HYSD in reinforcement bars stands for High Yield Strength Deformed bars. These are steel bars with higher yield strength and deformations (ribs) on the surface to improve bonding with concrete. The other options are incorrect because they use wrong words like Strong, Highest, or Hard, which are not the standard engineering term.
Prestressed concrete means
A)
compressive stress induced in concrete before loading
B)
compressive stress induced in steel before loading
C)
tensile stress induced in steel before loading
D)
none of these
Prestressed concrete is concrete in which internal stresses are introduced before the application of external loads. These prestresses are usually compressive stresses induced in the concrete (through tensioned steel tendons) so that the concrete can better resist later tensile stresses from service loads. Option (b) is incorrect because the aim is not to prestress steel itself, and option (c) describes tension in steel, which is the means used to create prestress, not the definition of prestressed concrete.
Which wood should be used for first class building chaukhats?
A)
Sesame wood
B)
Saal wood
C)
Teak wood
D)
Arjun wood
For first-class building chaukhats (door/window frames), durable, strong, and termite-resistant timber is preferred. Teak wood is widely used for high-quality construction work because it has excellent strength, durability, and resistance to decay. Saal and sesame wood are also strong timbers, but teak is the standard choice for first-class chaukhats. Arjun wood is not generally preferred for this purpose.
The floor of a septic tank should be sloping towards
A)
the inlet side
B)
the outlet side
C)
should not be sloping
D)
should be lowest at the middle of the tank
In a septic tank, the floor is made to slope slightly towards the outlet side so that sludge can move toward the sludge-digestion zone and be removed more easily during cleaning. A slope toward the inlet would oppose flow and cause unwanted accumulation near the inlet. The floor should also not be flat or lowest at the middle, as that would not help sludge collection and maintenance.
What is the unit for stress?
A)
N/m2
B)
Nm2
C)
N/m
D)
Nm
Stress is defined as force per unit area. Therefore its SI unit is newton per square metre (N/m2), which is also called pascal (Pa). Option (b) Nm2 is force multiplied by area, and options (c) N/m and (d) Nm are not units of stress.
With respect to energy conservation and cost efficiency, the nature of an ideal built form should be
A)
High Rise Low Density
B)
Medium Rise High Density
C)
Low Rise High Density
D)
Low Rise Low Density
For energy conservation and cost efficiency, an ideal built form should minimize exposed surface area while accommodating more users within a compact area. Low-rise high-density development reduces infrastructure, circulation, and construction costs compared to high-rise forms, while also improving energy efficiency through better compactness. High-rise low-density is the least efficient, and low-rise low-density uses too much land and services. Hence, the correct choice is Low Rise High Density.
In RCC beams, the end cover of concrete should not be less than
A)
15 mm
B)
20 mm
C)
25mm
D)
30 mm
In RCC beams, the end cover is the minimum concrete cover provided at the ends of reinforcement to protect steel from corrosion and fire. As per standard practice for RCC beams, the end cover should not be less than 20 mm. Hence, option (b) is correct. The other options are either too small to ensure proper protection or exceed the usual minimum requirement.
What is not a type of beam failure?
A)
flexure-compression-failure
B)
development of cracks
C)
shear-compression-failure
D)
buckling
Beam failures are commonly classified as flexure failure, shear failure, flexure-compression failure, shear-compression failure, and cracking-related failure. Among the given options, buckling is generally associated with slender columns or compression members, not as a standard type of beam failure. Therefore, the correct answer is buckling.
How many times can a notice of change of office address of an Architect be published?
A)
2
B)
3
C)
4
D)
5
Under the Council of Architecture (Professional Conduct) Regulations, an architect may publish a notice regarding change of office address a limited number of times. The permitted maximum is 5 times. Therefore, option (d) is correct.
Why others are incorrect:
- (a) 2: less than the permitted limit
- (b) 3: less than the permitted limit
- (c) 4: less than the permitted limit
- (d) 5: matches the prescribed maximum
In sewage treatment plants, the oil and grease is removed by:
A)
filtration
B)
oxidation
C)
screening
D)
skimming
In sewage treatment plants, oil and grease are lighter than water and float on the surface. They are therefore removed by skimming, where the floating layer is collected from the top. Filtration is used for solids, oxidation for organic matter decomposition, and screening removes large debris, not oil and grease.
What if the full form of HVAC?
A)
Heating Ventilation and Air Conditioning
B)
Heating Ventilation and Cooling
C)
Humidity Ventilation and Air Conditioning
D)
Humidity Ventilation and Air Cooling
HVAC is the standard acronym in building services for Heating, Ventilation and Air Conditioning. Option (a) matches the correct expansion. The other options are incorrect because they replace Air Conditioning with Cooling or use Humidity instead of Heating.
What is the SI unit of Bending moment?
A)
kN
B)
kN2
C)
kNm
D)
km
Bending moment is the product of force and perpendicular distance, so its SI unit is Newton-metre (N·m). In structural engineering, it is commonly expressed as kN·m. Option (c) is correct.
(a) kN is only force, not moment.
(b) kN2 is not a valid unit.
(d) km is a unit of length, not moment.
What does BOD stand for with reference to waste water?
A)
basis of distribution
B)
biodegradable oxygen demand
C)
biochemical oxygen demand
D)
basis of design
BOD stands for Biochemical Oxygen Demand. It is the amount of dissolved oxygen required by aerobic microorganisms to decompose organic matter in wastewater. The other options are incorrect because BOD is not related to basis of distribution, biodegradable oxygen demand, or basis of design.
What is the first step of Environmental Impact Assessment?
A)
Project Monitoring
B)
Project Appraisal
C)
Project Implementation
D)
Project Identification and Proposal
Environmental Impact Assessment (EIA) begins at the earliest planning stage. The first step is identifying the project and preparing the proposal, because the likely environmental effects can only be assessed after the project is defined. Project appraisal, implementation, and monitoring come later in the process. Therefore, option (d) is correct.
Up to which point on the stress-strain curve is Hooke’s law valid?
A)
Elastic limit
B)
Yield point
C)
Proportionality limit
D)
Fracture point
Hooke’s law states that stress is directly proportional to strain, but only in the linear region of the stress-strain curve. This relation remains valid up to the proportionality limit. Beyond this point, stress is no longer exactly proportional to strain, although the material may still behave elastically up to the elastic limit. Therefore, the correct answer is proportionality limit. Elastic limit is a broader concept, yield point marks the start of plastic deformation, and fracture point is the failure point.
What is a solar chimney?
A)
a type of solar heating and cooling system
B)
a cooking stove that uses solar energy
C)
a solar water heater
D)
none of these
A solar chimney is a passive solar device that uses solar energy to create airflow for ventilation, heating, and cooling. It works by heating air in a vertical shaft, causing the warm air to rise and exit, which draws cooler air in. So it is best described as a solar heating and cooling system. The other options are incorrect because it is not a cooking stove and not specifically a water heater.
What is night soil?
A)
Soil containing urea
B)
Human excreta
C)
Animal excreta
D)
Human excreta, animal excreta and urea
Night soil means human excreta collected from toilets or pit latrines, especially in old sanitation systems. It does not refer to soil containing urea or animal excreta. Therefore, option (b) is correct.
As per Council of Architecture Schedule of Payment, how many stages of payment are there excluding retainer?
A)
5
B)
6
C)
7
D)
8
As per the Council of Architecture (COA) Schedule of Payment, the payment is typically divided into 7 stages in total, including the retainer. If the retainer is excluded, the remaining stages of payment are 6. Hence, option (b) is correct. The other options do not match the standard COA fee schedule structure.
What is the maximum letter size allowed for advertisement for an Architect in an office or construction site?
A)
9 cm
B)
9.5 cm
C)
10 cm
D)
10.5 cm
The standard limit for lettering size in an architect’s advertisement/signboard at an office or construction site is 10 cm. Hence option (c) is correct. The other options (9 cm, 9.5 cm, and 10.5 cm) do not match the prescribed maximum size.
What is the pipe diameter of domestic water supply from distribution point to home?
A)
20mm
B)
25mm
C)
30mm
D)
10mm
For domestic water supply from the distribution point to a home, the usual service connection pipe diameter is 25 mm. A 10 mm pipe is too small for normal domestic supply, while 20 mm is more typical for smaller service lines; 30 mm is not the standard option here. Hence, 25 mm is the correct answer.
Right to acquire light and air from the neighbor’s land is an example of
A)
Easement by express grant
B)
Easement by implied grant
C)
Easement by custom
D)
Easement by prescription
Under the Indian Easements Act, a right to receive light and air through a neighbor’s land is typically acquired by continuous, open, and uninterrupted enjoyment for the statutory period. That is an easement by prescription. It is not an express grant (created by agreement), not an implied grant (arising from circumstances of transfer), and not by custom (based on local usage).
A Demolition Contract for a building is awarded to the
A)
Lowest bidder
B)
Highest bidder
C)
Second lowest bidder
D)
Second highest bidder
In a demolition contract, the contractor gets value from the salvaged materials (bricks, steel, wood, fixtures, etc.). So the party willing to pay the most to take over the building is selected. Therefore, a demolition contract is awarded to the highest bidder. The other options are generally used in ordinary works contracts where the client pays the contractor, but here the contractor may pay for the right to demolish.
For one way slab, the ratio in between length and breadth of the slab should be
A)
less than 1
B)
between 1.0 to 1.5
C)
less than 2
D)
more than 2
A one-way slab is defined as a slab in which the longer span is more than twice the shorter span, i.e., the ratio of length to breadth is greater than 2. In such slabs, load is mainly carried in one direction. If the ratio is less than 2, the slab behaves as a two-way slab. Therefore, the correct option is 'more than 2'.
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