Important Points SOP (Standard Operating Procedure) During the Inspection of RCC NP4 Pipes

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Important Points SOP (Standard Operating Procedure) During the Inspection of RCC NP4 Pipes: -    Image-Hydro Test (Photo Credit: Ritesh Raj) (1.) Firstly, approved QAP will be checked.  (2.) ID marks should be marked on the inner and outer sides of pipes.  Image-ID Mark (Photo Credit: Ritesh Raj)  (3.) To check the inner and outer diameter of pipes.   (4.) Smooth finishing and before dispatch of RCC pipes cement slurry or grouting where required.   (5.) Load test is required for RCC pipes as per IS codes. It is different for each dia, of RCC pipes.  Image-Plate Load Test (Photo Credit: Ritesh Raj)   (6.) Concrete mix design checked and in which cement content, cement brand, and water-cement ratio should be checked.  (7.) The straightness test to be checked of RCC pipes through the straightness rods to collinear visible.   (8.) As per requirement 2% of hydro tests are to be checked as IS:458 of the total ordered quantity.  Image-Hydro Test (Pressure Release) (Photo Credit: Ritesh Raj)  
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Important One Liner Question With Answers, Part 1

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I am presenting here most important (mixed topic) one liner questions with their answer from civil engineering, in which most are asked in various competitive examinations. Please go through it. 


(1.)  Broadly spaced contour lines on a map shows that the area is-Flat

(2.)  Velocity distribution in a turbulent boundary layer follows-Longitudinal Law

(3.)  IRC has specified the maximum value of stripping value of bitumen not to exceed-5 %

(4.)  Surge is an example of-Unsteady Rapidly Verified Flow

(5.)  Viscosity is due to-Cohesion and Vapor Pressure

(6.)  Eular’s equation represents-Momentum Equation

(7.)  Dimension of vorticity is-T-1

(8.)  In long and short wall method of estimation, the length of long wall is the centre to centre  distance between the wall and-Breadth of the wall

(9.)  Outer projection of a ‘Tread’ is called-Nosing

(10.) The part if the wall on which an arch rests is called-Abutment



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(11.) ISHB will be preferred for a-Column

(12.) Compression members always tend to buckle in the direction of the-Least Radius of Gyration

(13.)The piezometric head is the summation of-Pressure head and elevation head

(14.) Irrotational flow occurs when-There is net rotation of the fluid element about its mass centre

(15.)The most suitable explosive used in construction of under water is-Gelignite

(16.) What are the forces that influence the problem of fluid statics-Gravity and pressure force

(17.)The design of thin cylindrical shells is based on-Hoop stress

(18.)An example of plastic material-Zinc

(19.)Plastic material are those which flow under-compression. For Ex-Steel, alloys, lead, copper, Zinc. Rest all materials are brittle.

(20.)Which constituent in earth gives plasticity to mould bricks in suitable shape-Aluminium

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(21.)The raw bricks shrink during and warp because of-Excess of alumina and silica in brick earth

(22.)Which admixture is chemically active water proofer-Soda Soaps

(23.)Surface area of OPC- always >2250 cm2/gm

(24.)Rapid hardening cement -always >3250 cm2/gm

(25.)Initial and final setting time of high alumina cementis-3.5 hours and 5 hours respectively

(26.)Harmful in the clay used for making bricks-Iron Pyrite

(27.) Most economical circular channel gives maximum discharge, while Flow depth= 0.95d

(28.)Two pipe systems are said to be equivalent when-both have same head loss and discharge values

(29.)The velocity distribution for turbulent flow through circular pipes is-Logarithmic

(30.)When increases in temperature the dynamic viscosity of air and water varies as-viscosity of air increases and viscosity of water decreases

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(31.)The aggregate is said to be flaky when-its least dimension is less than three fifth of its mean dimension

(32.)The minimum quantity of cement content needed of 1 m3 of a reinforced concrete which is exposed to sea weather conditions is-320 Kg

(33.)Mild steel is a relatively- ductile material

(34.)The resistance of an aggregate to the effect of hydration of cement and weather is called-Soundness

(35.)The size of fillet weld is indicated by-Side of the triangle of steel

(36.)1 m3 of mild steel weights-7850 Kg.

(37.)The total length of cranked bar through a distance(d) at 450 in case of a beam of effective length (L) and depth (d) is-L+2 x 0.45d

(38.)The depth of foundation is usually calculated from-Rankine’s formula

(39.)The distance between two brass ring in a surveyor’s chain is-20 metre

(40.)Survey line which helps to verify the accuracy of the framework is known as-Check Line

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Also Read:Different Energy sources

(41.)The total no. of links provided in a Gunter’s chain is-100

(42.)The direction of a line relative to a given meridian is known as-Bearing of Line

(43.) A linear force-deformation relation is obtained in materials- Following Hook’s law

(44.)The property of a material by which it gets permanent deformation under a load which is not recovered after removal of load is called-Ductility

(45.) Least carbon contains-Wrought Iron
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(46.) No. of satellites involves in the orbit for the GPS survey technique-24

(47.)Black cotton soil is not suitable for foundation because of its-Swelling and shrinkage

(48.)Optimum moisture content is obtained from-Standard proctor test

(49.)Green concrete is made by adding-Iron Oxide

(50.)Gypsum is added to cement in small quantity to-central initial setting time
                     The base material for distemper 

            (51.)The base material for distemper is-Chalk


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Written By- 
Ritesh Raj
Email Id-rajritesh.motiharirr@gmail.com

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