Hydraulic Engineering And Machines (KCE403) - AKTU Question Paper 2021-22
B.Tech · Semester 4 · Free PDF Download
This is the official AKTU Hydraulic Engineering And Machines Previous Year Question Paper for B.Tech Semester 4, academic session 2021-22. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
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Questions Asked in 2021-22
Hydraulic Engineering And Machines (KCE403) — complete question paper
- aDefine specific energy and total energy. 1
- bDistinguish between pipe flow and open channel flow. 1
- cDistinguish between most economical and most efficient channel. 2
- eExplain hydraulic jump with the help of a diagram. 3
- fDefine surges in open channel. 3
- gExplain Speed ratio and Jet ratio of a Pelton turbine. 4
- hDefine pumps. 4 Q1(i) Define reaction turbine with the help of a suitable example. 5 Q1(j) Define specific speed of a turbine. 5
- aIllustrate the condition under which the rectangular and triangular section of an open channel is most economical and derive these conditions
- bExplain and sketch the GVF profiles produced on i. Mild Slope ii. Steep Slope iii. Critical Slope
- cA hydraulic jump is occurring in a rectangular channel of 3 m width, discharge is 7.8 m3/s and depth before the jump is 0.28 m. Calculate: i. Sequent Depth ii. Energy loss during the jump
- dIllustrate centrifugal pump? Describe the principle and working of a centrifugal pump with a neat sketch
- eIllustrate the phenomenon of cavitation? What is its effect on turbine? How it can be avoided?
- aExplain the concept of specific energy depth curve and prove th e critical flow condition for all types of channels
- bA flow of 5 m3/s is passing at a depth of 1.5 m through a rectangular channel of 2.5 m width. The kinetic energy correction factor α is found to be 1.20. What is the specific energy of the flow? What is the value of the depth alternate to the existing depth if α = 1.0 is assumed for the alternate flow?
- aA rectangular channel has a width of 2 m and carries a discharg e of 4.8 m3/ sec with
- adepth of 1.6 m. At a certain section a small smooth hump with a flat top and of height 0.5 m is proposed to be built. Neglect energy loss. i. Calculate the water surface elevation on the hump. ii. Calculate the minimum size of hump to cause critical flow over the hump
- bA rectangular channel is 3.5 m wide and conveys a discharge of 15 m3/s at a depth of 2 m. It is proposed to reduce the width of the channel at a hyd raulic structure. Assuming the transition to be horizontal and the flow to be frictionless, determine the water surface elevation upstream and downstream of the constric tion when the constricted width is: (i) 2.5 m, (ii) 2.2 m
- aDerive an expression for sequent depth ratio and energy loss in a hydraulic jump for a rectangular channel
- bA horizontal rectangular channel 4 m wide carries a discharge o f 16m3/s. Determine whether a jump may occur at an initial depth of 0.5 m or not. I f a jump occurs, determine the sequent depth to this initial depth. Also determine the energy loss in the jump
- aExplain in detail the working of a reciprocating pump with the help of a suitable diagram
- bA nozzle of 50 mm diameter delivers a stream of water at 20 m/s perpendicular to a plate that moves away from the jet at 5 m/s. Calculate: i. Force on the plate ii. Work done iii. Efficiency of the jet
- aIllustrate draft tubes and its types with the help of a suitabl e diagram. Prove that the pressure at the inlet of the draft tube is less than atmospheric pressure
- bA Pelton wheel is to be designed for the following specification. Shaft Power =11722 KW, Head = 380 m, Speed = 750 rpm, Overall Efficiency = 86%, Jet diameter (d) not to exceed one-sixth of wheel diameter (D). Determine: i. Wheel diameter ii. No. of Jets required iii. Diameter of Jets. Take Kv 1 = 0.985 and Ku1=0.45
Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.
Repeated Questions — KCE403
Questions that appeared in more than one session, found by comparing 2 years of Hydraulic Engineering And Machines papers (2021-22, 2022-23)
Define surges in open channel. 3
Appeared in: 2021-22 · 2022-23
Illustrate the condition under which the rectangular and triangular section of an open channel is most economical and derive these conditions
Appeared in: 2021-22 · 2022-23
A horizontal rectangular channel 4 m wide carries a discharge o f 16m3/s. Determine whether a jump may occur at an initial depth of 0.5 m or not. I f a jump occurs, determine the sequent depth to this initial depth. Also determine the energy loss in the jump
Appeared in: 2021-22 · 2022-23
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