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Previous year question hub

Pipe Flow, Pumps and Flow Measurement - Fluid Mechanics and Mechanical Operations - Chemical Engineering Previous Year Questions

Practice Pipe Flow, Pumps and Flow Measurement - Fluid Mechanics and Mechanical Operations - Chemical Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

18Papers
18Years
46Questions
1Topics

Pipe Flow, Pumps and Flow Measurement question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Pipe Flow, Pumps and Flow Measurement. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 27 58.7%
Medium 18 39.1%
Hard 1 2.2%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 31 67.4%
Numerical Answer Type (NAT) 13 28.3%
MSQ 2 4.3%

Subject weightage

Top subjects by unique question coverage.

Chemical Engineering
46 Qs

Most asked topics

Top topics across the included previous year papers.

Fluid Mechanics and Mechanical Operations
46 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Pipe Flow, Pumps and Flow Measurement
46 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Chemical Engineering (CH) 2026
2 Qs
Chemical Engineering (CH) 2025
2 Qs
Chemical Engineering (CH) 2024
2 Qs
Chemical Engineering (CH) 2023
4 Qs
Chemical Engineering (CH) 2022
2 Qs
Chemical Engineering (CH) 2021
2 Qs
Chemical Engineering (CH) 2020
2 Qs
Chemical Engineering (CH) 2019
2 Qs
Chemical Engineering (CH) 2018
3 Qs
Chemical Engineering (CH) 2017
3 Qs
Chemical Engineering (CH) 2014
2 Qs
Chemical Engineering (CH) 2013
1 Qs
Chemical Engineering (CH) 2012
3 Qs
Chemical Engineering (CH) 2011
5 Qs
Chemical Engineering (CH) 2010
2 Qs
Chemical Engineering (CH) 2009
2 Qs
Chemical Engineering (CH) 2008
3 Qs
Chemical Engineering (CH) 2007
4 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Chemical Engineering (CH) 202620262View paper
Chemical Engineering (CH) 202520252View paper
Chemical Engineering (CH) 202420242View paper
Chemical Engineering (CH) 202320234View paper
Chemical Engineering (CH) 202220222View paper
Chemical Engineering (CH) 202120212View paper
Chemical Engineering (CH) 202020202View paper
Chemical Engineering (CH) 201920192View paper
Chemical Engineering (CH) 201820183View paper
Chemical Engineering (CH) 201720173View paper
Chemical Engineering (CH) 201420142View paper
Chemical Engineering (CH) 201320131View paper
Chemical Engineering (CH) 201220123View paper
Chemical Engineering (CH) 201120115View paper
Chemical Engineering (CH) 201020102View paper
Chemical Engineering (CH) 200920092View paper
Chemical Engineering (CH) 200820083View paper
Chemical Engineering (CH) 200720074View paper

All Pipe Flow, Pumps and Flow Measurement previous year questions

Practice every matching question in batches of 20, with every available option.

1
2007 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2007
Select the most appropriate pump from Group 2 to handle each fluid flow given in Group 1.
Group1
P. Highly viscous fluid flow
Q. Fluid containing large amount of abrasive solids

Group 2
(1) piston pump
(2) gear pump
(3) plunger pump
(4) centrifugal pump
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2
2007 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2007

A tube of diameter D and length L is initially filled with a liquid of density ρ and viscosity μ. It is then pushed out by the application of a constant force F to the plunger as shown in the figure. Assuming laminar flow and pseudo steady state, the time required to expel one half of the liquid out of the tube is

Question diagram

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3
2007 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2007
The figure shows a series-parallel configuration of three identical centrifugal pumps. The head increase ΔH across a single such pump varies with flowrate Q according to ΔH = a − bQ2. The expression for the total head increase ΔH = H2 − H1 in terms of a and b and the total flowrate Qt for this configuration is given by

Question diagram

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4
2007 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2007

The pressure differential across a venturimeter, inclined at 45° to the vertical (as shown in the figure) is measured with the help of a manometer to estimate the flowrate of a fluid flowing through it. If the density of the flowing fluid is ρ and the density of the manometer fluid is ρm, the velocity of the fluid at the throat can be obtained from the expression

Question diagram

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5
2008 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2008
Q.10 Losses for flow through valves and fittings are expressed in terms of
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6
2008 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2008
Q.11 To determine the performance of a compressor, a standardized test is performed. In the testing process, when the compressor is under operation, "shut off" term signifies
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7
2008 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2008
Q.12 Given a pipe of diameter D, the entrance length necessary to achieve fully developed laminar flow is proportional to ( \( N_{Re} \) is Reynolds number )
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8
2009 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2009

Under fully turbulent flow conditions, the frictional pressure drop across a packed bed varies with the superficial velocity (V) of the fluid as

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9
2009 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2009
Two identical reservoirs, open at the top, are drained through pipes attached to the bottom of the tanks as shown below. The two drain pipes are of the same length, but of different diameters (\(D_1 > D_2\)). Assuming the flow to be steady and laminar in both drain pipes, if the volumetric flow rate in the larger pipe is 16 times of that in the smaller pipe, the ratio \(D_1/D_2\) is

Question diagram

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10
2010 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2010

A storage vessel exposed to atmosphere (absolute pressure = 10.3 m of water) has a diameter of 3 m and is initially filled with water to a height of 2 m. The pump draws water from the vessel and is located at an elevation of 5 m above the bottom of the vessel. The frictional head loss in the suction pipe is 2 m of water. If the vapour pressure of the liquid at the temperature of operation is 3 m of water, then the available NPSH is

Question diagram

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11
2010 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2010

In Hagen-Poiseuille flow through a cylindrical tube, the radial profile of shear stress is

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12
2011 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2011
Match the pumps in Group I with the corresponding fluids in Group II. GROUP I P. Gear pump Q. Peristaltic pump GROUP II I. Highly viscous liquid II. Aqueous sterile liquid III. Slurry
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13
2011 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2011

In an orifice meter, if the pressure drop across the orifice is overestimated by 5%, then the PERCENTAGE error in the measured flow rate is

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14
2011 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2011
Two systems are available for compressing 6 m\(^3\)/hr of ambient air to 10 bar. The first one uses a single stage compressor (K1) and the second one uses a multistage compressor with inter-stage cooling (K2). Which ONE of the following statements is INCORRECT?
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15
2011 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2011

A liquid is flowing through the following piping network. The length of pipe sections P, Q, R and S shown in the schematic are equal. The diameters of the sections P and R are equal and the diameter of the section Q is twice that of S. The flow is steady and laminar. Neglecting curvature and entrance effects, the ratio of the volumetric flow rate in the pipe section Q to that in S is

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16
2011 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2011
When \(\overline{V_0} = 0.005\) m/s and \(\varepsilon = 0.5\), which ONE of the following is the CORRECT value for the ratio of the viscous loss to the kinetic energy loss?
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17
2012 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2012
Water is flowing under laminar conditions in a pipe of length \( L \). If the diameter of the pipe is doubled, for a constant volumetric flow rate, the pressure drop across the pipe
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18
2012 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2012

The local velocity of a fluid along a streamline can be measured by

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19
2012 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2012
In a mixing tank operating at very high Reynolds number (> \( 10^4 \)), if the diameter of the impeller is doubled (other conditions remaining constant), the power required increases by a factor of
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20
2013 · Chemical Engineering · Fluid Mechanics and Mechanical Operations · Pipe Flow, Pumps and Flow Measurement
Chemical Engineering (CH) 2013

For a Newtonian fluid flowing in a circular pipe under steady state conditions in fully developed laminar flow, the Fanning friction factor is

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Showing 20 of 46 questions