B.TechSemester 42023-24Hydraulic Engineering And MachinesBCE403
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Hydraulic Engineering And Machines (BCE403) - AKTU Question Paper 2023-24

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 2023-24. 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:2023-24
University:AKTU / UPTU

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Questions Asked in 2023-24

Hydraulic Engineering And Machines (BCE403) — complete question paper · 70 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 7 = 14
  • a
    What is the most economical c hannel section condition? 2 1
  • b
    What is the application of specific energy? 2 1
  • c
    What is the principle of hydraulic jump? 2 2
  • d
    Write the impact of jets on plane and curved plates. 2 3
  • e
    What is the difference between deep and shallow-water waves? 2 4
  • f
    Write the classifications of tu rbines according to direction of flow. 2 4
  • g
    What is the difference between impulse and reaction turbine? 2 5
Section BAttempt any three of the following: 7 x 3 = 21
  • a
    Find the critical depth for a specific energy head of 2.5 m in the following channels. (i) Triangular channel n = 2 (ii) Trapezoidal channel b = 4m and n = 1.5
  • b
    Derive the equations of GVF f or a wide rectangular channel u sing (a) Manning’s formula (ii) Chezy’s formula
  • c
    Give the neat sketches of classifications of jump based on F roude number F1 of super critical flow
  • d
    Draw neat sketch of velocity triangles for an impeller vane and write important terms with their relation involve in velocity triangles
  • e
    A Pelton turbine develops 8421 kw of shaft power under a hea d of 320 m. Speed of rotation of wheel is 700 rpm and its overall efficiency is 8 7%. Assuming coefficient of velocity of jet 0.98, speed ratio as 0.45 and jet ratio as 6, find the wheel diameter, diameter of jet and the number of jets required
Section CAttempt any one part of the following: 7 x 1 = 7
  • a
    Water flows through a circular channel of diameter 600 mm at the rate of 0.142 m3/s. If the slope of the channel is 1 in 500 and the depth of wa ter is 450 mm, calculate Chezy’s coefficient and the velocity of flow
  • b
    An irrigation channel of trape zoidal section has side slope of 1.5 horizontal to 1 vertical and bed slope of 1 in 4000. The channel has passed a discharge of 15 m3/s the channel is to lines for which the value of N in Operatin g formula is 0.012. Find the dimension of most economical section of the channel
  • a
    A flow of 5.0 m 3/sec is passing at a depth of 1.50 through a rectangular Channel of width 2.50 m. What is the specific energy of the flo w? What is the value of the alternate depth to the existing depth?
  • b
    Sketch the GVF profile for th e following cases three slopes (i) Mild (ii) Steeper mild (iii) milder are in series. The last slope has a sluice ga te in the middle of the reach and the downstream end of the channel has a free overfall
  • a
    Find the sequent depth ratio and energy loss for a hydraulic jump in a horizontal rectangular channel
  • b
    A rectangular channel 3m wide has a flow of 3.6 m3/s with th e velocity of 0.8 m/s. If the sudden release of additional flow at the upstream end of the channel causes the depth to raise by 50%. Determine the absolute veloci ty of the resulting surge and the new flow rate
  • a
    With neat diagram find out the forces of jet on a stationary vertical plate. 7 4
  • b
    Find out the vane angle at the outer periphery of the impell er of a centrifugal pump. Data given Q= 0.118 m3/s, N= 1400 rpm, Hm=25 m., D2=250 mm, ɳ mano
  • a
    Derive an expression for speci fic speed of a turbine. How does it influence the geometry of runner?
  • b
    What do you understand by model testing of turbines? Also, e xplain their three parameters

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 — BCE403

Questions that appeared in more than one session, found by comparing 2 years of Hydraulic Engineering And Machines papers (2023-24, 2024-25)

2x

What is the most economical c hannel section condition? 2 1

Appeared in: 2023-24 · 2024-25

2x

What is the difference between deep and shallow-water waves? 2 4

Appeared in: 2023-24 · 2024-25

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