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Right choice is (a) True

The BEST I can EXPLAIN: Variation occurs in the flow of sewage over annual average daily flow. Fluctuation in flow occurs from hour to hour and from season to season. If the flow is gauged near its ORIGIN, the peak flow will be quite pronounced. The peak will DEFER if the sewage has to travel long distance. This is because of the time required in collecting sufficient QUANTITY of sewage required to fill the sewers and time required in travelling.

Correct answer is (d) 0.274 m^3

The best I can explain: GIVEN volume = 100*.012 = 1.2cum.

Increase mortar by 30% = 1.56cum.

For volume of DRY mortar increase 25% = 1.56+ (1.56*.25) = 1.95cum.

Now proportion = 1:6.

k+6k = 7k.

So volume of cement = (1/7) * 1.95 = 0.2785.

The correct answer is (a) Design period

Explanation: The design period DEPENDS UPON the following:

-Ease and difficulty in expansion,

-Amount and availability of investment,

-Anticipated rate of population growth, including shifts in communities, INDUSTRIES and

commercial investments,

-HYDRAULIC constraints of the systems DESIGNED, and

-Life of the material and equipment.

Right option is (b) False

Easiest explanation: DA or dearness allowance is calculated as a SPECIFIC percentage of the basic salary which is then added to the basic salary ALONG with other components like HRA (House RENT Allowance) to make up the total salary of an employee of the government sector.

HRA or House Rent Allowance is the salary COMPONENT given by an employer to an employee in order to meet expenses related to the renting of accommodation which the employee takes for residential purposes.

Right choice is (b) Demolition

Explanation: The ESSENCE of safe demolition lies in efficient risk control, environmental management and careful planning. The CDM Regulations have provided a platform from which the industry exhibits best PRACTICE, DEMANDING written plans of WORK for demolition EVEN where a project is not notifiable.

Correct option is (b) False

Best explanation: The per capita sewage generation can be considered as 75 to 80% of the per capita WATER supplied per day. The increase in POPULATION ALSO result in increase in per capita water demand and hence, per capita production of sewage. This increase in water demand occurs due to increase in living standards, BETTERMENT in economic condition, changes in habit of people, and enhanced demand for public utilities.

Correct answer is (d) Addition due to UNACCOUNTED private water SUPPLIES, infiltration and water losses

Easy explanation: Addition due to infiltration-This is additional quantity due to groundwater seepage in to sewers through faulty joints or cracks formed in the pipes. The quantity of the water depends upon the height of the water table above the sewer invert level.

Addition due to unaccounted private water supplies- People using water supply from private wells, tube wells, etc. contribute to the wastewater generation more than the water supplied by municipal authority. Similarly, certain INDUSTRIES utilize their own source of water.

Subtraction due to water losses -The water loss, through leakage in water distribution system and house connections, does not reach consumers and HENCE, not appear as SEWAGE.

Correct option is (b) 10 cm

Best explanation: 10cm, Actually in INDIA HALF brick thick wall is 115 MM thick. Half brick MODULAR brick wall is 10cm. Thick including thickness of plaster. However plaster is paid SEPARATELY in both the cases. In India half brick thick wall is paid in sq.meter.

Right OPTION is (a) variable Dearness Allowance

Easiest EXPLANATION: Dearness Allowance is COST of living adjustment allowance which the government pays to the employees of the public sector as well as pensioners of the same. DA component of the SALARY is APPLICABLE to both employees in India and Bangladesh.

Correct choice is (a) True

The explanation is: For 1 : 2 : 4 CONCRETE, 1m^3 need Labour constant.

Mixing concrete = 3.00 hour/m^3.

Lifting and carrying concrete = 1.20 hour/m^3.

Compacting concrete = 0.80 hour/m^3.

Levelling SURFACE of concrete = 0.10 hour/m^3.

Total= (3+1.2+0.8+0.1) = 5.

Right choice is (d) WATER closets, Flushing pipes and lavatory basins

The best I can explain: A FITTING is used in pipe systems to connect STRAIGHT pipe or tubing sections, adapt to different sizes or shapes and for other purposes, such as regulating (or measuring) fluid flow. “Plumbing” is generally used to describe the conveyance of water, gas, or liquid WASTE in domestic or commercial environments; “piping” is often used to describe the high-performance (high-pressure, high-flow, high-temperature or hazardous-material) conveyance of fluids in SPECIALIZED applications. “Tubing” is sometimes used for lighter-weight piping, especially that flexible enough to be supplied in coiled form.

Fittings (especially uncommon types) require money, time, materials and tools to install, and are an important part of piping and plumbing systems. Valves are technically fittings but are usually discussed separately.

The correct choice is (a) Suspended SOLIDS

For EXPLANATION I would SAY: The definition of Turbidity is the cloudiness or haziness of a fluid caused by suspended solids that are usually invisible to the naked eye. The measurement of Turbidity is an important test when trying to DETERMINE the quality of water. It is an aggregate optical property of the water and does not identify INDIVIDUAL substances; it just says something is there.

Correct answer is (c) 7.5 SQ. m

The EXPLANATION is: For 100 sum, no. of Mason is 13 no.

i.e for 13 Mason flooring is 100 square meter.

So for 1 Mason flooring is 100/13 = 7.69 sum.

The correct OPTION is (a) list

Explanation: HOWEVER, on a much larger scale, a ‘schedule of rates term contract’, ‘term contract’ or ‘MEASURED term contract’ may be used when the nature of work required is known but it cannot be quantified, or if continuity of PROGRAMME cannot be determined. In the absence of an estimate, tenderers quote unit rates against a document that is INTENDED to cover all likely activities that might form part of the works.

Correct answer is (b) Rs.1000

For explanation I would say: A road roller (sometimes called a roller-COMPACTOR, or just roller) is a compactor type engineering VEHICLE used to compact soil, GRAVEL, concrete, or asphalt in the construction of roads and FOUNDATIONS. SIMILAR rollers are used also at landfills or in agriculture.

The correct choice is (a) 24 hours

The explanation is: DETENTION period of 24hrs (mostly) considered in SEPTIC tank DESIGN. The rate of flow of EFFLUENT MUST be equal to the rate of flow of influent.

The correct choice is (C) Rs.373

For explanation: A SEMISKILLED worker is one who does work generally of defined routine nature wherein the major requirement is not so much of the judgment, skill and but for proper discharge of duties assigned to him or RELATIVELY narrow job and where important decisions made by others. His work is thus LIMITED to the performance of routine OPERATIONS of limited scope.

Correct choice is (b) Rs.11000/cu m

Explanation: SHISHAM is best known economic TIMBER species of the rosewood genus sold internationally, but it is also USED as fuel wood and for shade and shelter. With its tolerance of light frosts and long dry seasons, this species deserves greater consideration for TREE farming, agro forestry and DECIDUOUS reforestation. After teak, it is the most important cultivated timber tree of Bihar, which is the largest producer of shisham timber in India.

The correct choice is (a) 0.26 m^3/s

Explanation: Given data, Q = 250 lit/capita/day

SEWAGE FLOW = 75% of water supply = 0.75* 250 = 187.5 LPCD

Total sewage generated = 187.5*60000/(24*3600) = 130.21 lit/sec = 0.13 m^3/s

Assume peak factor = 2

Total design discharge = 0.26 m^3/s.

The correct CHOICE is (c) Rs.350

For explanation: A rivet is a permanent mechanical fastener. Before being installed, a rivet consists of a SMOOTH CYLINDRICAL shaft with a head on ONE end. The end opposite to the head is called the tail. On installation, the rivet is placed in a PUNCHED or drilled hole, and the tail is upset, or bucked (i.e., deformed), so that it expands to about 1.5 times the original shaft diameter, holding the rivet in place.

The correct OPTION is (a) 150 MM

For explanation I WOULD say: Following are some recommendations for domestic sewer pipe.

100 mm – 1 in 60.

150 mm – 1 in 100.

200 mm – 1 in 120.

Right option is (a) dry rubble MASONRY

Best explanation: In dry rubble masonry, mortar is not USED. Great SKILL is required to arrange different sized and shaped stones in such a way that they don’t ROLL down or fall down after a while.

The correct choice is (b) False

Explanation: Industrial dearness allowance or IDA is the allowance applicable to employees of the public SECTOR enterprises. Recently, the government of the India has INCREASED IDA by 5% for this sector. This decision is set to benefit all board level executives, officers and employees of central PSUs.

IDA for government sector enterprises is revised quarterly based on the movement of the Consumer PRICE Index (CPI) in order to compensate for the rising inflation in the country.

Right option is (d) Additional resources are required to measure work and certify payments

To ELABORATE: Option “Additional resources are required to measure work and certify payments” is disadvantage.

The disadvantages include:

• Additional resources are required to measure work and certify payments.

• The CLIENT does not have a final PRICE when committing to starting work.

• It is difficult for contractors to plan long-term resources and so might mean changes to personnel with loss of continuity.

• Contractors may be tempted to front-load costs in case later work does not materialise.

• There is no real INCENTIVE for contractors to treat such work with any sense of urgency and its best staff will be placed on the projects where the contractor is CARRYING more risk.

Right option is (b) supplier

The BEST explanation: TRADITIONALLY, suppliers might have been considered to be organisations contracted to provide physical supplies such as goods, materials, plant, and so on, however, its USE is now much broader and PAS 1192-2 defines a supplier as any ‘provider of SERVICES or goods either directly to the employer or to another supplier in a SUPPLY chain’. The ‘supply chain’ is the interconnected hierarchy of suppliers.

Right choice is (d) Pipes laid in trenches, cutting through walls and pipes CLASSIFIED as per size

Easy explanation: The product, delivered to the point of consumption, is called potable water if it meets the water QUALITY standards required for human consumption.

The water in the supply network is maintained at positive pressure to ensure that water reaches all parts of the network, that a sufficient flow is available at every take-off point and to ensure that untreated water in the ground cannot enter the network. The water is typically PRESSURISED by pumps that pump water into storage TANKS constructed at the highest local point in the network. One network may have several such service reservoirs.

In small domestic systems, the water may be pressurised by a pressure vessel or even by an underground cistern (the latter however does need additional pressurizing). This eliminates the need of a water-tower or any other heightened water RESERVE to supply the water pressure.

Correct choice is (a) Rs.350

Explanation: A blacksmith is a metalsmith who creates objects from wrought iron or STEEL by FORGING the metal, using tools to hammer, bend, and cut (cf. whitesmith). BLACKSMITHS produce objects such as gates, GRILLES, railings, light fixtures, furniture, sculpture, tools, agricultural implements, decorative and religious items, cooking utensils etc.

Correct CHOICE is (a) Rs.373

Explanation: Clerical work typically refers to a VARIETY of OFFICE and administrative support duties. If you’re interested in a career in clerical work, read on to learn more about the NATURE of the PROFESSION and the variety of occupations available. Schools offering Office Management degrees can also be found in these popular choices.