Bissoy.com
Doctors Medicines MCQs Q&A

What is the suggested economic buttress spacing for a mean dam height of greater than 45 m?

What is the suggested economic buttress spacing for a mean dam height of greater than 45 m? Correct Answer 12 to 15

The suggested economic buttress spacing in m for a normal Φ value of 40° to 50° for different dam heights – S.No Mean Dam Height in m Economic buttress spacing 1. Less than 15 4.5 2. 15 – 30 4.5 to 7.5 3. 30 – 45 7.5 to 12 4. Above 45 12 to 15

Related Questions

The buttresses of a free deck buttress dam are provided at ‘x’ m clear spacing and buttress thickness is proposed to be ‘t’ m. The buttress section can then be designed like the section of a concrete gravity dam by considering the effective unit weight of water = Surcharge factor (S) x actual unit weight of water. The value of this surcharge factor is given as _____________
There are six friends who have different height and they stand according to their height information as given below. Q is greater than P and S. M is greater than P. T is greater than P who is greater than O. M is greater than Q. T is smaller than Q. Who among the following is the smallest in height?
In a simple deck slab buttress dam of a given height, the buttress spacing can be increased by increasing the upstream slope.
Height of 8 boys B1, B2, B3, B4, B5, B6, B7, and B8 are compared. Height of B3 will be the least or maximum. Height of B4 is more than B6. Height of B8 is less than only 3 boys. Height of B2 is more than B1 but less than B8. Height of B2 is less than B3. If the height of B4 is less than B1, then which of the following sequence of their heights may be correct?
 There are seven persons A, B, C, D, E, F and G. Each has a different height. The height of only two persons is more than that of D. The height of B is more than that of C and F. The height of E is more than that of G. The height of A is less than that of D, but more than that of B. Height of F is not the least. Which of the following options regarding their height is correct?
All the forms of matter except gases emit electromagnetic radiation continuously. The gases which electrically or thermally excited emit a certain wavelength only, then which of the following is/are true about the process (i) The spacing between the atoms in the other forms of matter is high than in gas (ii) The spacing between the atoms in gases is high than the other forms of matter (iii) The energy of the emitted radiation depends on the spacing between the atoms (iv) The wavelength of the emitted radiation depends on the spacing between the atoms 
Which of the following statements are true with regard to energy dissipation below a dam? (i) If the upper conjugate depth of a hydraulic jump is below the tailwater, little energy will be dissipated (ii) An upturned bucket will protect the dam from scour by moving material toward the dam. (iii) A secondary dam may increase tailwater height, thereby causing a hydraulic jump to form at the toe of the main dam. (v) A slopping apron above streambed level may be used to control the hydraulic jump so that it occurs on the apron. 
A concrete gravity dam having a maximum reservoir level at 200 m and the RL of the bottom of the dam 100 m. The maximum allowable compressive stress in concrete is 3000 KN/m2 and the specific gravity of concrete is 2.4. Calculate the height of the dam and check whether it is a high dam or low dam.
Height of five students A, K, L, M and T are compared. Height of K is more than only two students. Height of M is greater than T and Height of T is greater than K. How many students are smaller than T?
The average of the height of the 20 employee of the company is 1.5 m.In the month of June, two employees named Rita and Sumit left the company whose height are 1.4 m and 1.6 m respectively. In August, two more people left the company whose average of height is 1.7 m and one person join the company whose height is 87.5% of height of Sumit. Before the December, more four people left the company whose height are 1.3 m, 1.1 m, 1.32 m and 1.25 m respectively and more 5 people join the company whose height are 1.26 m, 1.18 m, 1.39 m and 1.4 m respectively. The average of height in the month of September is ….