Q. Calculate the value of hydraulic mean radius for a channel designed by Lacey’s theory which has a mean velocity of 1m/sec. The silt factor can be taken as unity.

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Q. Which of the following is usually adopted for contraction and construction joints?

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Q. Which of the following is not a movement joint?

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Q. A partial contraction joint is the one in which?

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Q. Which of the following is a movement joint with deliberate discontinuity but no initial gap?

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Q. Which of the following is a movement joint with complete discontinuity in both reinforcement and concrete and intended to accommodate either expansion or contraction of the structure?

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Q. In reinforced concrete floors, the movement joints should normally be spaced at a maximum spacing of ____________

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Q. The expansion joints in floors and walls should normally be provided at a spacing of not more than ___________

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Q. What is the maximum expansion or contraction allowed for the joint filler material with an initial gap of about 30 mm?

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Q. Which of the following can be used as support for an effective joint sealing compound in floor and floor joints?

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Q. What provides a permanent watertight seal during the whole range of joint movement?

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Q. Which of the following is sometimes used in expansion joints to avoid the risk of fault in an embedded water bar?

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Q. Joint sealing compounds are impermeable ductile materials which are required to ___________________

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Q. In case of the sealing joint, the lower part of the joint is occupied by joint filler.

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Q. What is the most common metal used for water stops?

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Q. The use of sealing compounds for vertical joints is very successful.

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