B.TechSemester 42022-23Hydraulic Engineering MachinesKCE-403
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Hydraulic Engineering Machines (KCE-403) - AKTU Question Paper 2022-23

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Hydraulic Engineering Machines Previous Year Question Paper for B.Tech Semester 4, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 4
Session:2022-23
University:AKTU / UPTU

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Questions Asked in 2022-23

Hydraulic Engineering Machines (KCE-403) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20
  • a
    What is the main function of air vessels in a reciprocating pump?
  • b
    Write down the manning’s equation for uniform flow in open channel
  • c
    Define jet ratio in case of a Pelton turbine?
  • d
    Define specific energy in open channel flow
  • e
    Find the force exerted by a jet of water of diamete r 75 mm on a stationary flat plate when the jet strikes the plate normally with a velocity of 20 m/s
  • f
    Why NDL is above CDL in case of mild slope?
  • g
    Write the dynamic equation of gradually varied flow in OCF
  • h
    List various type of surges. (i) What is a hydraulic jump in OCF? (j) What are the main parts of Pelton turbine?
Section BAttempt any three of the following: 10x3=30
  • a
    Derive the condition for the most economic trapezoi d channel section. Also show that the hydraulic mean depth for such channel is one half of the depth of flow
  • b
    (i) Write Chezy’s equation and assumptions involved in deriving it. (ii) A trapezoidal channel has a bottom width of 6 m and side slopes of 1:1. The depth of flow is 1.5 m at a discharge of 15 m 3/s. Determine the specific energy. If the critical depth is 0.9 m, discuss the type of fl ow corresponding to the critical depth
  • c
    What is a hydraulic jump? Deduce the relation betwe en alternate depth of hydraulic jump and Froude Number
  • d
    A jet of water of diameter 50 mm moving with a velo city of 40 m/s, strikes a curved fixed symmetrical plate at the center. Find the for ce exerted by the jet of water in the direction of the jet, if the jet is deflected throu gh an angle of 120° at the outlet of the curved plate
  • e
    What are different types of efficiencies of hydraul ic turbine and explain hydraulic efficiency, mechanical efficiency and overall effic iency. Also Derive relationship among themselves
Section CAttempt any one part of the following: 10x1=10
  • a
    State the conditions under which the rectangular se ction of an open channel will be most economical. Derive these conditions
  • b
    A trapezoidal channel with one side vertical and th e other sloping at 2H:1V carries a discharge of 28 m 3/s at a mean velocity of 1.5m/sec. Determine the lo ngitudinal slope and the channel dimensions for the best hydra ulic efficiency, if manning’s n =
  • a
    A rectangular channel with bottom width of 4 m and a bottom slope of 0.0008 has a discharge of 1.5 m 3/s. In a gradually varied flow in this channel, the depth at a certain location is found to be 0.30 m. Assuming n = 0.016, determine & sketch the GVF profile
  • b
    Uniform flow occurs at a depth of 1.5 m in a long r ectangular channel 3 m wide laid at a slope of 0.0009. If manning’s n =0.015. Calculate
  • a
    Maximum height of hump on floor to produce critical depth
  • b
    The width of contraction which will produce cri tical depth without increasing the upstream depth of flow
  • a
    Explain various types of hydraulic jumps on the bas is of (i) Froude’s number and (ii) location with illustrative diagrams
  • b
    A horizontal rectangular channel 4 m wide carries a discharge of 16 m 3/s. Determine whether a jump may occur at an initial depth of 0.5 m or not. If a jump occurs, determine the sequent depth to this initial depth. Also determine the energy loss in the jump
  • a
    Explain with neat a sketch, the construction detail s and working principles of a centrifugal pump
  • b
    Differentiate between single stage and multistage p umps. Write a note on characteristics curves on roto dynamic pumps
  • b
    Give the range of specific speed values of Kaplan, Francis turbine and Pelton wheel turbine. What is a draft tube and its use? List the different types of draft tube. Draw neat sketches of various shapes of draft tubes

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 — KCE-403

Questions that appeared in more than one session, found by comparing 2 years of Hydraulic Engineering Machines papers (2021-22, 2022-23)

2x

Define specific energy in open channel flow

Appeared in: 2021-22 · 2022-23

2x

State the conditions under which the rectangular se ction of an open channel will be most economical. Derive these conditions

Appeared in: 2021-22 · 2022-23

2x

A horizontal rectangular channel 4 m wide carries a discharge of 16 m 3/s. Determine whether a jump may occur at an initial depth of 0.5 m or not. If 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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