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Shivan
Shivan

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Difference between geodetic surveying and plane surveying?

  1. Ancy Joby

    Ancy Joby

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    As we all know, Geodetic surveying and Plane surveying comes under the primary classification of surveying. Geodetic surveying In geodetic surveying, the curvature of the earth is taken into account while taking surveying. In this surveying conducted a larger area. Geodetic surveying is mainly conduRead more

    As we all know, Geodetic surveying and Plane surveying comes under the primary classification of surveying.

    Geodetic surveying

    In geodetic surveying, the curvature of the earth is taken into account while taking surveying. In this surveying conducted a larger area. Geodetic surveying is mainly conducted to determine the precise positions on the earth surface. It is also called as Trigonometrical surveying.

    Plane Surveying

    In-plane surveying, the curvature of the earth is ignored because surveying is conducted in small areas. The degree of accuracy is low as compared to Geodetic surveying.

     

     

     

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Shivan
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What are the main objects of the seasoning of timber?

  1. nikeetasharma

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    The objectives of seasoning of timber are as follows :- - Improve strength, hardness and stiffness of timber. - Make it suitable for receiving various treatments like paints, preservatives, varnishes, etc. - Allows the wood to burn quickly if it is used as fuel. - Reduce the tendency of timber to crRead more

    The objectives of seasoning of timber are as follows :-
    – Improve strength, hardness and stiffness of timber.
    – Make it suitable for receiving various treatments like paints, preservatives, varnishes, etc.
    – Allows the wood to burn quickly if it is used as fuel.
    – Reduce the tendency of timber to crack, wrap, shrink and bend.

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aviratdhodare
aviratdhodare

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 how to calculate the rate of spray of prime coat in road construction. 

  1. aviratdhodare

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    Tray Test is used to calculate the rate of spread of prime or tack coat. The test uses a 20cm X 20 cm X 3 cm tray placed on the surface to be primed at some intervals in the path of the sprayer/emulsion distributor. They are placed between the wheel's path/tracks. 5 samples are collected for a testRead more

    Tray Test is used to calculate the rate of spread of prime or tack coat. The test uses a 20cm X 20 cm X 3 cm tray placed on the surface to be primed at some intervals in the path of the sprayer/emulsion distributor. They are placed between the wheel’s path/tracks.

    5 samples are collected for a test and a minimum of 3 tests are conducted for a day of work.

    Weight of the emulsion on the tray is calculated by finding the difference in the final and the initial weight of the tray. Weight per unit sq.m or weight per 10 sq.m is obtained and checked with specified limits mentioned in MORT&H Table 500–3 (prime coat) and 500–5 (Tack coat) or other relevant IRC specifications.

    Initially before the start of the priming work, a demonstration trial is done based on the following parameters:

    1. Equipment type for spraying operation
    2. Size of nozzle
    3. Pressure at spray bar
    4. Speed of forward movement of sprayer equipment.

    Above values are ascertained and calibrated for a required rate of spray as per the specification by using tray test prior to the start of actual work.

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Ancy Joby
Ancy Joby

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What are the methods used to control silt at head work?

  1. Preet Chovatiya

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    The following ways can help to remove or control silt at head work. 1. By installing silt excluder you can control or remove silt easily. 2. Provide a divide wall at the side of canal in river to create trap or pocket for controlling silt. 3. By making smooth flow we should have to avoid unsteady flRead more

    The following ways can help to remove or control silt at head work.

    1. By installing silt excluder you can control or remove silt easily.

    2. Provide a divide wall at the side of canal in river to create trap or pocket for controlling silt.

    3. By making smooth flow we should have to avoid unsteady flow of water.

    4. By handling carefully of regulation of weir.

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Ancy Joby
Ancy Joby

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What is contour farming?In which type of soil contour farming is suitable?

  1. Kuldeep Singh

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    Contour farming is an agricultural practice where steps are cut out on a sloped field so as to provide steps of flat land (same contour) for cultivation. The potential benefits are a check on erosion, better rainfall usage, more infiltration, and reduction in the need for irrigation. It is feasibleRead more

    Contour farming is an agricultural practice where steps are cut out on a sloped field so as to provide steps of flat land (same contour) for cultivation. The potential benefits are a check on erosion, better rainfall usage, more infiltration, and reduction in the need for irrigation.

    It is feasible on all slopy regions to accept on those with highly erodible soils and soils that allow little infiltration.

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Komal Bhandakkar
Komal Bhandakkar

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Name of equipment used to measure creep?

  1. Fasi Ur Rahman

    Fasi Ur Rahman

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    Fasi Ur Rahman

    Name of the Equipment Test Specification Single creep test machine Test temp. : max. 1050℃, load: max. 3 tons, 180 units Test temp. : max. 800℃, load: max. 5 tons, 5 units Spring-type multi creep test machine Test temp. : max. 750℃ Load: max. 0.8 tons, 6 units (× 6 pull rods/unit × 8 pieces/pull rodRead more

    Name of the Equipment Test Specification
    Single creep test machine Test temp. : max. 1050℃, load: max. 3 tons, 180 units
    Test temp. : max. 800℃, load: max. 5 tons, 5 units
    Spring-type multi creep test machine Test temp. : max. 750℃
    Load: max. 0.8 tons, 6 units (× 6 pull rods/unit × 8 pieces/pull rod)
    Lever-type multi creep test machine Test temp. : max. 900℃
    Load: max. 1.5 tons, 12 units (× 6 pull rods/unit × 3 pieces/pull rod)
    Direct loading-type creep test machine Test temp. : max. 1000℃, load: up to 100 kg, 2 units
    Internal pressure creep test machine Test temp. : 300℃ to 800℃
    Test pressure: max. 1,500 atm
    Pipe size: up to 60 mmφ, 6 units
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aviratdhodare
aviratdhodare

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What is the difference between the modulus of rupture and flexural strength?

  1. nikeetasharma

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    Flexural strength is the maximum strength (stress) either yield or up to fracture that a structure or element or a member could bear. It could be measures in terms of modulus of rupture at yield also. Where in modulus of rupture is just showing the present stress condition within the member or elemeRead more

    Flexural strength is the maximum strength (stress) either yield or up to fracture that a structure or element or a member could bear. It could be measures in terms of modulus of rupture at yield also.

    Where in modulus of rupture is just showing the present stress condition within the member or element itself. If the member is on the verge of failure i.e on the verge of fracture than the modulus of rupture will give Flexural strength.

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aviratdhodare
aviratdhodare

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What is 30 mins time in case of a septic tank even though it took a detention period of 12-36 hours?          

  1. AdityaBhandakkar

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    Hi, Let me correct your concept, in septic tank detention period off 24 hours is considered. In this case, the rate of flow of influent= rate of flow of effluent. Septic tank is to be designed in such a way that see wait is retained in the tank for 24 hours and all the biological decomposition in thRead more

    Hi,

    Let me correct your concept, in septic tank detention period off 24 hours is considered. In this case,

    the rate of flow of influent= rate of flow of effluent.

    Septic tank is to be designed in such a way that see wait is retained in the tank for 24 hours and all the biological decomposition in the absence of air that is an aerobic bacteria takes place and breaks the soil which living a very small quantity of soil which is commonly called as sludge which settles at the bottom. And the clearwater which out from the tank is known as effluent.

    As you asked in question the 30 minutes is regarding the washing time of the tank.

    Hope you get clarity.

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