Related Questions

A tea merchant blends 2 kinds of tea, putting in 3 parts of a Tk. 25 per kg grade to 1 part of a Tk. 15 per kg. If the mixture is changed to 1 part of the Tk. 25 per kg grade to 3 parts of the less expensive grade, how much will the shop lose or save in blending 200 kg?
A lose Tk. 500
B loss Tk. 1,000
C save Tk. 1,500
D save Tk. 1,000
If the elevation of hydraulic grade line at the junction of three pipes is above the elevation of reservoirs B and C and below reservoir A, then the direction of flow will be
A from reservoir A to reservoirs B and C
B from reservoir B to reservoirs C and A
C from reservoir C to reservoirs A and B
D unpredictable
Reba's grade was in the 80th percentile out of 120 grades in her class. In another class of 200 students there were 24 grades higher than Reba's .If nobody had Reba's grade. then Reba was what percentile of the two classes combined?
A 30th
B 55th
C 67th
D 85th
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
The total energy line lies over the hydraulic gradient line by an amount equal to the
A Pressure head
B Velocity head
C Pressure head + velocity head
D Pressure head - velocity head
The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the
A Pressure head
B Velocity head
C Pressure head + velocity head
D Pressure head - velocity head
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation
A $${\text{t}} = \frac{{{\text{h}} + 1}}{{{\text{G}} + {\text{t}}}}$$
B $${\text{t}} = \frac{{{\text{h}} - 1}}{{{\text{G}} + {\text{t}}}}$$
C $${\text{t}} = \frac{{{\text{h}} - 1}}{{{\text{G}} - {\text{t}}}}$$
D $${\text{t}} = \frac{{{\text{h}} + 1}}{{\text{G}}}$$
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called
A Inverted syphon
B Depressed sewer
C Sag pipe
D all of these
Four routers have to be interconnected in a point-to-point Network. Each pair of root us may connected by a high-speed line, a medium speed line or a low speed line. Find the total number of topologies.
A 12
B 81
C 48
D 729
E ARP.EXE

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