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civl engineer
civl engineer

civl engineer

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What is Vena Contract in Orifice?

  1. nikeetasharma

    nikeetasharma

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    Vena contracta is the point in a fluid stream where the diameter of the stream is the least and fluid velocity is at its maximum, such as in the case of the stream issuing out of a nozzle. It is a place where cross section area is minimum.

    Vena contracta is the point in a fluid stream where the diameter of the stream is the least and fluid velocity is at its maximum, such as in the case of the stream issuing out of a nozzle. It is a place where cross section area is minimum.

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Shivan
Shivan

Shivan

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Difference between geodetic surveying and plane surveying?

  1. Ancy Joby

    Ancy Joby

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    Ancy Joby Learner

    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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DevilAVRT
DevilAVRT

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Derive the expression to find the distance and elevation of the object when the base of the object is inaccessible? Consider instruments and objects lies in the same vertical plane.

  1. AdityaBhandakkar

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    When the base of the object is inaccessible we use an indirect method of surveying. A tachometer is used to measure the distance between the two points with the use of an analytical lens. There are two methods Stadia method: In this method diaphragm of the tachometer are provided with two stadia haiRead more

    When the base of the object is inaccessible we use an indirect method of surveying.

    A tachometer is used to measure the distance between the two points with the use of an analytical lens. There are two methods

    1. Stadia method: In this method diaphragm of the tachometer are provided with two stadia hair .the difference between staff intercept gives stadia reading.
    2. Tangential Method: in this method, the tachometer is not provided with stadia hairs, the reading is taken by single horizontal hair.

    D=(f/L)S + (f + d)

    D=horizontal distance between tachometer and stadia rod.

    f/L = multiplying constant

    S= Staff Intercept

    Elevation formula:

    v = KSsin(2©)/2 + Ccos(2©)

    © = Theta= Angle of elevation or depression.

    K & C = Tachometric Constant

    substance method and tangential method is also used to find the elevation between two points.

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Dick Emerson
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Would it be possible to reduce embankment settlement at the embankment / abutment interface by injecting lime deep into the underlying foundation ground, a deep soft delta formation? I am thinking of injecting the lime using high pressure compressed air. ...

  1. Komal Bhandakkar

    Komal Bhandakkar

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    Lime Stabilization by deep injection

    Lime stabilization with deep injection : yes definitely it is possible that the embankment settlement can be reduced at embankment junction by lime stabilization with deep injection The process of injecting a lime slurry into the subsurface up to some depth of some feet it is one of the innovative aRead more

    Lime stabilization with deep injection :

    yes definitely it is possible that the embankment settlement can be reduced at embankment junction by lime stabilization with deep injection

    The process of injecting a lime slurry into the subsurface up to some depth of some feet it is one of the innovative and comparatively very good technique for an engineer as well as for labour.

    The main purpose of constructing climb up to some depth is to fill voids with a chemical compound

    Thank you.

     

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Gopal Mishra
Gopal Mishra

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At what reading of pressure gauge the GI fitting of kitchen and bathroom should be tested?

  1. Komal Bhandakkar

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    What is minimum pressure gauge for GI testing?

    Minimum pressure gauge for galvanized iron testing : Minimum yield strength of finished top tube should be 50000 psi Minimum tensile strength for the finished tube shall be 55000 psi The mechanical property of the finished surface of the cube is mainly depended upon the tube size and gauge. GenerallRead more

    Minimum pressure gauge for galvanized iron testing :

    • Minimum yield strength of finished top tube should be 50000 psi
    • Minimum tensile strength for the finished tube shall be 55000 psi
    • The mechanical property of the finished surface of the cube is mainly depended upon the tube size and gauge.
    • Generally galvanized iron pipes are used for the distribution of treated as well as raw water in rural and urban areas
    • Such type of pipes are very cheaper and its weight is very very light so that it can handle anywhere.
    • The tensile strength of galvanized iron pipe shall be at least 320 Newton per mm square.
    • The test shall be carried out on full section cut from the selected tubes in accordance with IS1608 and IS 12278

     

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Ancy Joby
Ancy Joby

Ancy Joby

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

  1. Kuldeep Singh

    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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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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Ancy Joby
Ancy Joby

Ancy Joby

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What are the functions of Eidograph in surveying?

  1. Kuldeep Singh

    Kuldeep Singh

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    Kuldeep Singh Learner

    Eidograph has the simple function of copying maps and plots to a different scale. It works on the same principles as a pantograph with the only difference of mechanism. The pantograph uses linkages arranged in a parallelogram while the eidograph might have either a string and pulley system or parallRead more

    Eidograph has the simple function of copying maps and plots to a different scale. It works on the same principles as a pantograph with the only difference of mechanism. The pantograph uses linkages arranged in a parallelogram while the eidograph might have either a string and pulley system or parallelogram linkages.

    There are two pens attached. If you move the primary pin on the map, after setting a desired scale, the secondary pen draws the same map scaled to the scale you set.

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