Test: Energy Equation & Its Applications - 2


9 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Energy Equation & Its Applications - 2


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Attempt Test: Energy Equation & Its Applications - 2 | 9 questions in 30 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study GATE Civil Engineering (CE) 2023 Mock Test Series for Civil Engineering (CE) Exam | Download free PDF with solutions
QUESTION: 1

If a1 and a2 are the cross-sectional areas of a tank and orifice, h the height of water level intank above the centre of the orifice, the velocity of approach is given by

Solution:
QUESTION: 2

If the coefficient of velocity of flow through a orifice is cv and coefficient of resistance is cr, then

Solution:

QUESTION: 3

If Cv, Cc, Dand Cr are the hydraulic coefficients of an orifice, then

Solution:
QUESTION: 4

The momentum correction factor for triangular velocity distribution for flow between parallel plates as shown in the figure is

Solution:

Triangular velocity distribution is achieved for Couette flow.
Average velocity,Vav = V/2 
Momentum correction factor

Energy correction factor,

QUESTION: 5

If the velocity is zero over half of the cross- sectionai area and is uniform over the remaining half, then the momentum correction factor is

Solution:

Momentum correction factor,

QUESTION: 6

Match List-I with List-I and select the correct answer using the codes given below the lists:
List-I
A. Moment of momentum equation
B. Bernoulli’s equation
C. Euler’s equation
D. Hagen-Poiseuille equation

List-II
1. Equation to find energy loss in a pipeline
2. Equation of motion for one-dimensional steady flow of ideal and incompressible fluid
3. Equation based on conservation of momentum principle applicable to circulatory flows
4. Three-dimensional equation ofmotion based on Principle of conservation of momentum for ideal and incompressible fluid flow

Solution:

Bernoulli's equation is derived from equation of motion for one-dimensional steady flow of ideal and incompressible fluid. \

QUESTION: 7

If velocity is zero over 1/3rd of a cross-section and is uniform over remaining 2/3rd of the cross-section, then the correction factor for kinetic energy is

Solution:


∴ v = 3/2 v
∴ Kinetic energy correction factor

QUESTION: 8

A jet of water issue from a 5cm diameter nozzle, held vertically upwards, at a velocity of 20 m/sec. If air resistance consumes 10% of the initial energy of the jet, then it would reach a height, above the nozzle, of

Solution:

Using Bernoulli’s equation,


QUESTION: 9

The kinetic energy correction factor is

Solution:
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