Related Questions

If average particle size of the silt in millimeters is m, the Lacey's silt factor f is proportional to
A m3
B $${{\text{m}}^{\frac{1}{2}}}$$
C $${{\text{m}}^{\frac{1}{3}}}$$
D $${{\text{m}}^{\frac{2}{3}}}$$
What is the perimeter, in meters, of a rectangular garden 6 meters wide that has the same area as a rectangular playground 16 meters long and 12 meters wide?
A 60
B 76
C 192
D None of these
A rectangular floor that measures 8 meters by 10 meters is to be covered with concept squares that each measures 2 meters by 2 meters. If a carpet square costs to cover 2/3 of the floor?
A ১৬০টাকা
B ১৮০টাকা
C ২৪০টাকা
D ৪৮০টাকা
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters . If a carpet square costs Tk. 12, calculate the total cost to cover 23 of the floor?
A Tk. 160
B Tk. 240
C Tk. 480
D None of these
A rectangular floor that measures 8 meters by 10 meters is to be covered with carper that each measure 2 meters by 2 meters. If the carpet cost Tk. 12 a piece, what is the total cost to cover the floor?
A Tk. 200
B Tk. 240
C Tk. 480
D Tk. 960
A rectangular floor is covered by a rug except for a strip P meters wide along each of the four edges. If the floor is m meters by n meters, what is the area of the rug, in square meters?
A mn - p(m + n)
B mn - 2p(m + n)
C mn - p2
D (m - 2p)(n - 2p)
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to
A Half the depth
B Half the breadth
C Twice the depth
D Twice the breadth
The hydraulic mean depth or the hydraulic radius is the ratio of
A Area of flow and wetted perimeter
B Wetted perimeter and diameter of pipe
C Velocity of flow and area of flow
D None of these
According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is
A 1.25 D
B 1.50 D
C 1.75 D
D 2.00 D
A swimming pool is initially filled to a depth of 96 inches. After 2 weeks, the depth has decreased to9212 inches. Assuming that the depth decreased at a constant rate, after how many days would the water depth have reached 9334 inches?
A 3
B 9
C 7
D 6

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