Download DBATU B.Tech 2019 March 4th Semester Hydraulics II Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 March (Bachelor of Technology) 4th Semester Hydraulics II Question Paper

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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination? March 2019 -
Course: B. Tech 1n Civil Engineering Seni: IV
Subject Name: Hydraulics H Subj ect Code: CV 401
Max Marks:20 Datez-11/03/2019 Duration:- 1 Hr.
Instructions to the Students: ?
1.. All questions are compulsory.
2. Assume suitable data if necessary.
(Level/ Marks
CO)
Q. 1 Attempt following Questions 6
3 F10 in the open channel may be classi?ed as ?Laminar? ?ow if ; ...... CO 1/
(a) Re < 500 (b) Re >2000 (c) 500 < Re < 2000 (d) none of the above C-l
b The phenomenon occurring in an open channel when a rapidly ?owing stream CO 2/
abruptly Changes to slowly ?owing stream causing a distinct rise of liquid surface, C-1
18 ??
(A) Water hammer (B). Hydraulic Jump (C) Critical discharge (D) None of the
above
? c The channel whose boundary 1s not deformable 1s known as CO 1/
(A). Rigid channel (B). Prismatic channel (C). Mobile channel (D). Boundary C-l
channel '
? d For a given discharge in a channel at critical depth CO 2/
(A). The total energy is minimum (B). The total energy is maximum , C-2
(C). The speci?c energy is minimum (D). The speci?c energy is minimum
e The most economical section of a trapezoidal channel is one which has hydraulic CO 1/
mean depth equal to; C?2
(A). 0.5[depth] (B). 0.5 [sloping side] (C). 0.5[width] (D). 0.5[width + depth]
. f The Maximum velocity in open channel oceurs at; C0 1/
? (A) Near the channel bed (B) a little below channel ?ee surface 01
(C) at the free surface (D) at the centre of ?ow ?
Q.2 Solve Any Two of the following. ' 3 X 2
(A) A 3 m wide rectangular channel conveys 12 m3/s of water at a depth of 2m. CO 2/
Calculate; C-3
i) Speci?c energy, critical depth, minimal speci?c energy, critical velocity
ii) Froude number and whether ?oe is subcritical or supercritical. .
(B) What are the different types of channels? Give example in each case. . CO 1/
? C-2
(C) A triangular gutter whose side includes angle of 60? conveys water at a uniform CO 1/
1 depth 4m. If the slope of the bed IS 1 in 1000 ?nd the rate of ?ow of water. Take C-3
Chezy? s constant C =55.
Q. 3 Solve Any one of the following. _ 8
(A) Derive expression for the most economical trapezoidal channel section. CO 1/
, C-3
(B) Derive an expression tor sequent depths lS hydraulic Jump. If sequent depths in a CO 3/
rectangular channel before and a?er hydraulic Jump are 0.5111 and 2 m respectively, C-3
calculate critical depth and discharge per unit width of channel
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