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Published by Saurabh Kamble, 2019-08-01 11:36:06

FM-Made Easy

FM-Made Easy

2/4/2018 MADE EASY ONLINE TEST SERIES

The shear stress distribution for a one dimensional viscous flow through pipe is
FAQ Solution Video Have any Doubt ?

A
Parabolic

B Your answer is Correct
Linear

Solution :
(b)

C 8/35
Cubic

D
None of these

QUESTION ANALYTICS

Q. 9
The velocity distribution in a turbulant boundary layer is given by

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 MADE EASY ONLINE TEST SERIES

What is the displacement thickness δ*? FAQ Solution Video Have any Doubt ?

A
δ

B

C

D Correct Option

Solution :
(d)

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2/4/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 10

The mean velocity of a one dimensional incompressible flow between two fixed parallel plates is 3.33 m/s.
The maximum velocity of the flow is __________m/s.

FAQ Solution Video Have any Doubt ?

4.995 (4.98 - 5.00) Your answer is Correct4.995

Solution :
4.995 (4.98 - 5.00)

QUESTION ANALYTICS

Q. 11

If the differential head between the throat and inlet of a venturimeter is 19.032 m of water. Assume that 4%
of the differential head is lost between the inlet and throat. The value of Cd for the venturimeter is
___________.

FAQ Solution Video Have any Doubt ?

0.9798 (0.979 - 0.981) Correct Option

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2 10/35

2/4/2018 MADE EASY ONLINE TEST SERIES Co ect Opt o

Solution :
0.9798 (0.979 - 0.981)

QUESTION ANALYTICS

Q. 12
A circular plate of 3 m diameter is immersed in water in such a way that its greatest and least depth below
the free surface are 4 m and 1.5 m respectively. The position of center of pressure as shown in figure from
the free surface of liquid is ____________ m.

2.892 (2.86 - 2.92) FAQ Solution Video Have any Doubt ?
Your answer is Correct2.89199
Solution :
2.892 (2.86 - 2.92) 11/35

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 .89 ( .86 .9 M) ADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 13

A turbine works under a head of 19 m and has a maximum flow rate of 3 m3/s and a speed of 600 rpm. If it
has to work in another plant under a head of 5 m, the maximum flow rate will be ___________ m3/s.

FAQ Solution Video Have any Doubt ?

1.539 (1.50 - 1.58) Correct Option

Solution : 12/35
1.539 (1.50 - 1.58)

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 MADE EASY ONLINE TEST SERIES

Your Answer is 0.4326

QUESTION ANALYTICS

Q. 14

If a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena contracta, then its
coefficient of contraction will be ___________.

FAQ Solution Video Have any Doubt ?

0.64 Your answer is Correct0.64

Solution : 13/35
0.64

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2/4/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 15

A pipe of diameter 300 mm and length 3500 m is used for transmission of power by water. The head at inlet
of pipe is 500 m. If coefficient of friction, f is 0.006, the velocity of flow in the pipe is _______ m/s, for
maximum transmission of power.

FAQ Solution Video Have any Doubt ?

3.417 (3.40 - 3.45) Correct Option

Solution :
3.417 (3.40 - 3.45)

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2/4/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS Your Answer is 5.919

Q. 16

Two pipes of length 1000 m and 1200 m of diameter 100 mm and 300 mm respectively are connected in
series. These pipe are replaced by a single pipe of length 2000 m. The diameter of single pipe is
_____________ mm.

FAQ Solution Video Have any Doubt ?

114.77 (114.00 - 115.00) Your answer is Correct114.75

Solution :
114.77 (114.00 - 115.00)

QUESTION ANALYTICS

Q. 17 15/35

A U-shaped manometer containing liquid is rotated about the axis A-A with angular velocity of 20 rad/s as

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 MADE EASY ONLINE TEST SERIES

shown in figure. What is the difference in the height of liquid in two columns in (mm)?

A FAQ Solution Video Have any Doubt ?
120 Correct Option

B
153

Solution :
(b)

C 16/35
171

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 MADE EASY ONLINE TEST SERIES

D
192

QUESTION ANALYTICS

Q. 18

If for a two dimensional potential, the velocity potential is given by Solution Video Have any Doubt ?
                         Φ = x (2y – 1)
What is the value of stream function ψ at point (4, 5)?

FAQ

A
1

B
2

C
3

D Your answer is Correct
4

Solution :
(d)

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2/4/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 19
A cylindrical object of diameter 10 cm, height 20 cm and density 8000 kg/m3 is supported by a vertical
spring and is half dipped in water. If the object is slightly depressed and released, what should be the time
period of resulting oscillations? Take spring constant to be 500 N/m.

FAQ Solution Video Have any Doubt ?

A 18/35

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2/4/2018 A MADE EASY ONLINE TEST SERIES
0.5 secs

B
0.7 secs

C
0.93 secs

Correct Option

Solution :
(c)

D 19/35
1.25 secs

QUESTION ANALYTICS

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 MADE EASY ONLINE TEST SERIES

Q. 20

A copper piece of mass 10 grams and density 9000 kg/m3 is suspended by a vertical spring. The spring
elongates 1 cm over its natural length. A beaker containing water is now placed below the copper piece so
as to immerse the piece completely. What would be the elongation of the spring (in cm)? Take g = 10 m/s2.

FAQ Solution Video Have any Doubt ?

A
0.42

B
0.63

C Your answer is Correct
0.89

Solution :
(c)

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2/4/2018 MADE EASY ONLINE TEST SERIES

D
0.92

QUESTION ANALYTICS

Q. 21

Consider the following data pertaining to Pelton wheel:
Head at the base of nozzle = 80 m
Diameter of jet = 100 mm
Discharge of nozzle = 0.3 m3/s
What is the power lost in the nozzle ?

FAQ Solution Video Have any Doubt ?

A
10.71 kW

B
8.35 kW

C
22.37 kW

D Correct Option
16.59 kW
21/35
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2/4/2018 MADE EASY ONLINE TEST SERIES

Solution :
(d)

QUESTION ANALYTICS

Q. 22

Tests conducted on a one fifth scale model of a Francis turbine under a head of 1.5 m indicated that it could
develop 5 kW power at 450 rpm. What power will be obtained from the full scale turbine while working under
a head of 30 m?

FAQ Solution Video Have any Doubt ?

A
11.2 MW

Correct Option

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2/4/2018 MADE EASY ONLINE TEST SERIES

Solution :
(a)

B 23/35
1.12 MW

C
22.4 MW

D
2.24 MW

QUESTION ANALYTICS

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2/4/2018 MADE EASY ONLINE TEST SERIES

Q. 23

Water flows steadily from a tank mounted on a cart as shown in figure. After the water jet leaves the nozzle
of the tank, it falls and strikes a vane attached to another cart. Consider the cart’s wheels are frictionless
and the fluid is inviscid. The tension in rope B is (in N)

A FAQ Solution Video Have any Doubt ?
490
Correct Option
B
636 24/35

C
536

D
850

Solution :
(d)

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2/4/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 24

A turbine is to operate under a head of 25 m at 200 rpm. Power developed by turbine is 1986.5 kW. If the
efficiency is 90%. The discharge of turbine under a head of 20 m is

FAQ Solution Video Have any Doubt ?

A
9 m3/s

B Correct Option
8.05 m3/s

Solution :
(b)

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2/4/2018 MADE EASY ONLINE TEST SERIES

C
7.2 m3/s

D
6.4 m3/s

QUESTION ANALYTICS

Q. 25

A reaction turbine works at 450 rpm under a head of 120 m. Its diameter at inlet is 120 cm. The angles made
by absolute and relative velocities at inlet are 20° and 60° respectively with tangential velocity. What is the
hydraulic efficiency of reaction turbine assuming the zero whirl at outlet?

FAQ Solution Video Have any Doubt ?

A
47.3%

B
73.8%

C
93.7%

D Correct Option
85.9%
26/35
https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2

2/4/2018 MADE EASY ONLINE TEST SERIES Correct Option

Solution :
(d)

QUESTION ANALYTICS 27/35

Q. 26

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2/4/2018 MADE EASY ONLINE TEST SERIES

Water at 15°C flows between two large parallel plate at a distance of 1.6 mm apart. The shear stress at the
walls of plate, if the average velocity is 0.2 m/s, is ___________ N/m2.
(The viscosity of water at 15°C is given as 0.01 poise)

FAQ Solution Video Have any Doubt ?

0.75 (0.745 - 0.752) Correct Option

Solution :
0.75 (0.745 - 0.752)

Your Answer is 0.0125

QUESTION ANALYTICS

Q. 27 ld b fl i 600 di 30 l i li i 70 28/35
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2/4/2018 MADE EASY ONLINE TEST SERIES

The pressure drop for a relatively low Reynolds number flow in a 600 mm diameter, 30 m long pipe line is 70
kPa. The wall shear stress is ___________ Pa.

FAQ Solution Video Have any Doubt ?

350 Correct Option

Solution :
350

Your Answer is 10500

QUESTION ANALYTICS

Q. 28

A sub-marine moves horizontally in sea and has its axis 15 m below the surface of water. A pitot-tube
properly placed just in front of the submarine and along its axis is connected to the two limbs of a U-tube
containing mercury. The difference in the mercury level is found to be 170 mm. The speed of the submarine,
knowing that the specific gravity of mercury is 13.6 and that of sea water is 1.026 with respect of fresh
water, is _________km/hr.

FAQ Solution Video Have any Doubt ?

23 016 (23 00 23 02) 29/35

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2/4/2018 MADE EASY ONLINE TEST SERIES

23.016 (23.00 - 23.02) Correct Option

Solution :
23.016 (23.00 - 23.02)

Your Answer is 6.39

QUESTION ANALYTICS

Q. 29
The velocity along the centreline of a nozzle of length L is given by

FAQ Solution Video Have any Doubt ?

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2 30/35

2/4/2018 MADE EASY ONLINE TEST SERIES

-14.0625 (-14.1 - -13.95) Your answer is Correct-14.0625

Solution :
-14.0625 (-14.1 - -13.95)

QUESTION ANALYTICS

Q. 30
The outlet at the bottom of a tank is so formed that the velocity of water at a point A as shown in the figure
below is 2.0 times the mean velocity within the outlet pipe (atmospheric pressure = 95.48 kPa(absolute) and
vapour pressure = 4.00 kPa (abolute) and neglect all other losses). The greatest length of pipe L
which may by used without cavitation is ___________ m.

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2/4/2018 MADE EASY ONLINE TEST SERIES

1.21 FAQ Solution Video Have any Doubt ?
Correct Option
Solution :
1.21

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2/4/2018 MADE EASY ONLINE TEST SERIES

 

QUESTION ANALYTICS

Q. 31

The bulk modulus of elasticity of a liquid, if the pressure of the liquid is increased from 70 N/cm2 to 130
N/cm2 and the volume decreases by 0.15 percent, is __________N/mm2.

FAQ Solution Video Have any Doubt ?

400 Your answer is Correct400

Solution :
400

QUESTION ANALYTICS 33/35

Q. 32

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2/4/2018 MADE EASY ONLINE TEST SERIES

A single jet impulse turbine of 10 MW capacity is to work under a head of 500 m. If the specific speed of
turbine is 10. The overall efficiency is 80% and the coefficient of velocity is 0.98. Assume the speed of
bucket wheel as 0.46 of the velocity of jet. The diameter of bucket wheel is __________ meter.

FAQ Solution Video Have any Doubt ?

3.61 (3.55 - 3.65) Correct Option

Solution :
3.61 (3.55 - 3.65)

QUESTION ANALYTICS

Q. 33

The rate of flow of water through a horizontal pipe is 1000 liter/s. The diameter of pipe is suddenly enlarged

from 500 mm to 700 mm. The loss of head due to sudden enlargement is __________ m.

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=255&t=a&testType=2 FAQ S l i Vid H D b? 34/35

2/4/2018 MADE EASY ONLINE TEST SERIES

0.316 (0.3 - 0.35) FAQ Solution Video Have any Doubt ?
Solution : Correct Option
0.316 (0.3 - 0.35)

QUESTION ANALYTICS 35/35

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2/10/2019 MADE EASY ONLINE TEST SERIES
https://gw-mdsy.s3-accelerate.amazonaws.com/2019/student/profile/90742

Saurabh Mahendra Kamble  Sign out

(Enroll User)

SINGLE SUBJECT : FLUID MECHANICS & HYDRAULIC MACHINES (GATE - 2019) - REPORTS

Saurabh Mahendra Kamble OVERALL ANALYSIS COMPARISON REPORT SOLUTION REPORT

Course: GATE ALL(33) CORRECT(0) INCORRECT(0) SKIPPED(33)
Mechanical Engineering (ME)
Q. 1 where A is in meter and is in mm. Ratio of Reynolds number between two points which are 2
HOME Radius of a pipe is varying as FAQ Have any Doubt ?
m apart is approximately:
MY TEST Correct Option
A5
BOOKMARKS
B6
MY PROFILE
Solution :
REPORTS (b)

BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeManagementReport&testid=1050&t=cont-1&testType=2 1/30

2/10/2019 MADE EASY ONLINE TEST SERIES

Saurabh Mahendra Kamble C9 Saurabh Mahendra Kamble  Sign out
D8
Course: GATE (Enroll User)
Mechanical Engineering (ME) QUESTION ANALYTICS

HOME Q. 2
MY TEST
BOOKMARKS A tank filled with water is moving in horizontal direction with a constant acceleration. Because of acceleration, liquid surface take the shape
MY PROFILE as shown. Now along which line linear variation in static pressure occur.
REPORTS
BUY PACKAGE A Parallel to liquid surface AB FAQ Have any Doubt ?
ASK AN EXPERT B Perpendicular to liquid surface AB Correct Option
OFFER Solution :
EXCLUSIVE OFFER FOR OTS (b)
STUDENTS ONLY ON BOOK C In horizontal (direction of a)
PACKAGES D In vertical (direction of g)

QUESTION ANALYTICS

Q. 3 2/30

A balloon filled with helium (ρHe  < ρair) of dia 0.5 m and a ball (ρball > ρair) diameter 3 m is left in air. Just after release, balloon lifts up and
ball goes down. Which of the following statement is correct,

FAQ Have any Doubt ?

A Buoyancy force is greater, in balloon than ball.

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2/10/2019 MADE EASY ONLINE TEST SERIES SaurabChoMrreachteOndprtaioKnamble  Sign out

Saurabh Mahendra Kamble B Buoyancy force is greater, in ball than balloon. (Enroll User)

Course: GATE Solution :
Mechanical Engineering (ME) (b)

HOME C Buoyancy in both balloon and ball is equal.
MY TEST D The numeric value of densities should be given to conclude anything.
BOOKMARKS
MY PROFILE QUESTION ANALYTICS
REPORTS
BUY PACKAGE Q. 4
ASK AN EXPERT There are three containers as shown in figure labelled by A, B and C. All have equal cross section area at bottom. Water is filled upto equal
OFFER height in all of them and they are placed on weighing machine as shown. Select the correct order:
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

FAQ Have any Doubt ?

A C<A<B 3/30

B A≠B=C

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Saurabh Mahendra Kamble C B<A<C Saurabh Mahendra Kamble  Sign out
(Enroll UCsoerr)rect Option
Course: GATE Solution :
Mechanical Engineering (ME) (c)

HOME D A=B=C
MY TEST
BOOKMARKS QUESTION ANALYTICS
MY PROFILE
REPORTS Q. 5
BUY PACKAGE A closed bent as shown in figure is dipped in a open channel. A small orifice is made at the end. Upto what height ‘h’ water will spurt?
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

A 1.174 m FAQ Have any Doubt ?
Correct Option
Solution :
(a) 4/30

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Saurabh Mahendra Kamble  Sign out

(Enroll User)

Saurabh Mahendra Kamble B 1.374 m
C 0.100 m
Course: GATE D 1.274 m
Mechanical Engineering (ME)
QUESTION ANALYTICS
HOME
Q. 6 FAQ Have any Doubt ?
MY TEST An irrotational fluid is flowing ideally inside a circular pipe. One can apply Bernoulli’s equation

BOOKMARKS A Between only two lines in the direction of flow

MY PROFILE

REPORTS

BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

B Between any two points inside the fluid Correct Option

Solution :
(b)
Since flow is ideal and irrotational Bernoulli’s equation can be applied between any two points inside the fluid.

C Between two cross section of pipe only

D Between two points in a stream line.

QUESTION ANALYTICS 5/30
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Saurabh Mahendra Kamble Saurabh Mahendra Kamble 

Course: GATE Q. 7 (Enroll User) Sign out
Mechanical Engineering (ME)
Which of the following graphs correctly represents the relationship between head and specific speed for Kaplan and Francis turbines?
HOME FAQ Have any Doubt ?
MY TEST
BOOKMARKS A
MY PROFILE
REPORTS B
BUY PACKAGE C Correct Option
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

Solution : 6/30
(c)
D

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(Enroll User)

Saurabh Mahendra Kamble QUESTION ANALYTICS

Course: GATE Q. 8
Mechanical Engineering (ME) Consider the following arrangement:

HOME A and B are weighing machine based on springs. Initially the steel cube was not dipped, now when the steel cube is dipped by some depth,
reading on the weighing machines will
MY TEST
FAQ Have any Doubt ?
BOOKMARKS
A Increase Correct Option
MY PROFILE
Solution :
REPORTS (a)

BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

B Decrease

C Does not change

D Can’t say anything

QUESTION ANALYTICS

Q. 9 7/30

A small diameter glass tube is inserted in water as shown. Due to capillary there is level rise of water by 5 cm inside the tube. Now a hole at

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2/10/2019 g MADE EASY ONLINE TEST SERIES p y y
height of 2 cm from the water surface level is done. Select the correct conclusion.
Saurabh Mahendra Kamble
Saurabh Mahendra Kamble  Sign out
Course: GATE
Mechanical Engineering (ME) (Enroll User)

HOME FAQ Have any Doubt ?
MY TEST
BOOKMARKS A Water will leakout as pressure at point (3) is more than atmosphere.
MY PROFILE
REPORTS B Water will leakout as pressure at point (3) is less than atmosphere.
BUY PACKAGE
ASK AN EXPERT C Air will leak inside as pressure at point (3) is less than atmosphere. Correct Option
OFFER
EXCLUSIVE OFFER FOR OTS Solution :
STUDENTS ONLY ON BOOK (c)
PACKAGES The meniscus of fluid the pressure force is partially balanced by surfaced tension  force, so pressure at point (1) is decreased from
atmospheric pressure. Since at point (2) pressure is equal to atmospheric pressure. So at point (3) pressure will be  intermediate and
less than atmospheric pressure. Hole created will cause the high pressure air to rush in the tube.

D Air will leak inside as pressure at point (3) is more than atmosphere.

QUESTION ANALYTICS

Q. 10

A cylinder (diameter 4 m) of weight 50 kN is placed on the bottom of the tank as shown and oil and water is poured in left and right side of
tank respectively. Magnitude of horizontal force at centre that should be applied on cylinder so that it does not roll is (for unit length)
________ kN.

0 7084 (0 700 - 0 715) FAQ Have any Doubt ? 8/30
Correct Option
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2/10/2019 0.7084 (0.700 0.715) MADE EASY ONLINE TEST SERIES Correct Option

Solution : Saurabh Mahendra Kamble  Sign out
0.7084 (0.700 - 0.715)
(Enroll User)

Saurabh Mahendra Kamble

Course: GATE
Mechanical Engineering (ME)

HOME

MY TEST

BOOKMARKS

MY PROFILE

REPORTS

BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

QUESTION ANALYTICS

Q. 11

Temperature of air in atmosphere is changing as T = t0 – kZ where Z is in meter and measured from the earth’s surface to upwards. If the
pressure and temperature at earth surface is equal to 101.325 kPa and 300 K. Pressure at height of 1 km is________ bar. Take k = 9 × 10–3
°C/m

FAQ Have any Doubt ?

0.903 (0.89 - 0.91) Correct Option

Solution : 9/30
0.903 (0.89 - 0.91)

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Saurabh Mahendra Kamble Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
Mechanical Engineering (ME)
QUESTION ANALYTICS
HOME
MY TEST Q. 12
BOOKMARKS A closed tank is shown in figure below:
MY PROFILE
REPORTS If the absolute pressure at point A is 150 kPa. The gauge pressure at point ‘B’ when atmosphere pressure is 760 mm of Hg is equal
BUY PACKAGE to________ kPa.
ASK AN EXPERT
OFFER FAQ Have any Doubt ?
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK 31.92 (31.5 - 32.5) Correct Option
PACKAGES

Solution :
31.92 (31.5 - 32.5)

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Saurabh Mahendra Kamble QUESTION ANALYTICS Saurabh Mahendra Kamble 

Course: GATE (Enroll User) Sign out
Mechanical Engineering (ME)
Q. 13
HOME
MY TEST A hydraulic power plant as shown in figure takes in 25 m3/s of water through its turbine and discharges it at V2 = 1.5 m/s at atmospheric
BOOKMARKS pressure. The head loss in the turbine and penstock system is hf = 20 m. The power extracted by the turbine is________ MW (Tage, g = 10
MY PROFILE m/s2)
REPORTS (Correct upto two decimal place)
BUY PACKAGE
ASK AN EXPERT 18.72 (18.70 - 18.74) Have any Doubt ?
OFFER Correct Option
EXCLUSIVE OFFER FOR OTS Solution :
STUDENTS ONLY ON BOOK 18.72 (18.70 - 18.74)
PACKAGES

QUESTION ANALYTICS 11/30

Q. 14
A car with arrangement for water flow is attached to the wall by a spring as shown in figure below. The compression of the spring, if its
spring constant is 1.8 kN/m, will be ________ cm.
[Correct upto two decimal place]

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Saurabh Mahendra Kamble 6.262 (6.20 - 6.32) (Enroll User)
Solution :
Course: GATE 6.262 (6.20 - 6.32) FAQ Have any Doubt ?
Mechanical Engineering (ME) Correct Option

HOME QUESTION ANALYTICS
MY TEST
BOOKMARKS Q. 15
MY PROFILE
REPORTS A barometer is used to measure the height of a building. At the ground floor barometer reads 755 mm Hg and at the rooftop it reads 740
BUY PACKAGE mm Hg. Consider an average density of air as 1.175 kg/m3. The height of building is________m.
ASK AN EXPERT
OFFER Have any Doubt ?
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK 173.596 (172.5 - 173.7) Correct Option
PACKAGES

Solution :
173.596 (172.5 - 173.7)

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Saurabh Mahendra Kamble Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
Mechanical Engineering (ME)
QUESTION ANALYTICS
HOME
MY TEST Q. 16
BOOKMARKS Water flows in a pipe network as shown
MY PROFILE
REPORTS Value of to satisfy the continuity of fluid motion is equal to________.
BUY PACKAGE
ASK AN EXPERT 180 Have any Doubt ?
OFFER Correct Option
EXCLUSIVE OFFER FOR OTS Solution :
STUDENTS ONLY ON BOOK 180 13/30
PACKAGES

QUESTION ANALYTICS

Q. 17

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Saurabh Mahendra Kamble An ideal fluid flows from a small hole at the bottom of a large tank radially. If the steady column flow rate is 2 What will be convective
Saurabh Mahendra Kamble 
Course: GATE acceleration in radial direction at 10 cm from the hole.
Mechanical Engineering (ME) FAQ H(EanvroellaUnsyerD) oubt ? Sign out

HOME A 100 mm/s2
MY TEST
BOOKMARKS B 0.101 mm/s2
MY PROFILE
REPORTS C 20.26 mm/s2 Correct Option
BUY PACKAGE
ASK AN EXPERT Solution :
OFFER (c)
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK D 324 mm/s2
PACKAGES
QUESTION ANALYTICS

Q. 18 FAQ Have any Doubt ?
During axi-symmetric region of irrotational flow Laplace equation is
ψ = Stream function 14/30
Φ = Velocity potential function

A Valid for Both ψ and Φ

B Valid for ψ but not for Φ

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Saurabh Mahendra Kamble C Valid for Φ but not ψ Correct Option Sign out
Saurabh Mahendra Kamble 
Course: GATE Solution :
Mechanical Engineering (ME) (c) (Enroll User)

HOME D Can’t use Laplace equation in axis symmetric flow.
MY TEST
BOOKMARKS QUESTION ANALYTICS
MY PROFILE
REPORTS Q. 19
BUY PACKAGE In a two dimensional laminar flow near a solid wall as shown the velocity component is given by
ASK AN EXPERT
OFFER  
EXCLUSIVE OFFER FOR OTS where U is free stream velocity. Which of the following expression represents the velocity component perpendicular to wall?
STUDENTS ONLY ON BOOK
PACKAGES FAQ Have any Doubt ?
A

B

C Correct Option

Solution : 15/30
(c)

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Saurabh Mahendra Kamble Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
Mechanical Engineering (ME)
D
HOME
MY TEST QUESTION ANALYTICS
BOOKMARKS
MY PROFILE Q. 20
REPORTS A siphon tube is used to discharge oil at 25°C from a tank as shown. For flow to be continuous what is the value of maximum height ‘H’?
BUY PACKAGE (Atmospheric pressure head as 10.2 of water and there is no frictional losses)
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

A 8.5 m FAQ Have any Doubt ?
Correct Option
Solution :
16/30
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(a)

Saurabh Mahendra Kamble  Sign out

(Enroll User)

Saurabh Mahendra Kamble

Course: GATE
Mechanical Engineering (ME)

HOME

MY TEST

BOOKMARKS

MY PROFILE

REPORTS

BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

B 9.5 m
C 12 m
D 7m

QUESTION ANALYTICS

Q. 21 17/30

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Air is flowing in a pipe from section (1) to section (2) in a pipe adiabatically (reversible) as shown. Neglecting the interSmaourleacbuhlaMr afohrecnedsr,athKeamble 
velocity of flow at exit is
(Enroll User) Sign out

Saurabh Mahendra Kamble A 22.44 m/s FAQ Have any Doubt ?
Correct Option
Course: GATE Solution :
Mechanical Engineering (ME) (a)
 
HOME
B 44.22 m/s
MY TEST C 23.33 m/s
D 12.33 m/s
BOOKMARKS
QUESTION ANALYTICS
MY PROFILE
Q. 22
REPORTS A cubical steel block is floating in mercury as shown. Now a small disturbing couple is applied about one of its transverse axis. The body
will oscillate with a natural frequency of
BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

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H(EanvroellaUnsyerD) oubt ?
Saurabh Mahendra Kamble A 848 Hz
B 1.35 Hz Correct Option
Course: GATE C 7.4 Hz
Mechanical Engineering (ME) D Body will not oscillate
Solution :
HOME (d)
MY TEST
BOOKMARKS
MY PROFILE
REPORTS
BUY PACKAGE
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

QUESTION ANALYTICS

Q. 23
A man of mass 785 N(on earth) is standing on a platform as shown. In the column at left side,
what should be height of water if the whole arrangement is shifted on moon (Note: gmoon = gearth/6).

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Saurabh Mahendra Kamble A 0.8 m FAQ Have any Doubt ? Sign out
Saurabh Mahendra Kamble 
Course: GATE Solution : (Enroll UCsoerr)rect Option
Mechanical Engineering (ME) (a)

HOME B 0.133 m
MY TEST C 4.8 m
BOOKMARKS D 0.167 m
MY PROFILE
REPORTS QUESTION ANALYTICS
BUY PACKAGE
ASK AN EXPERT Q. 24
OFFER
EXCLUSIVE OFFER FOR OTS In a turbulent flow over plate velocity profile is approximated as (1/7) power law i.e. Free stream velocity of water is 2 m/s.
STUDENTS ONLY ON BOOK
PACKAGES

If the kinematic viscosity of water is equal to 10–6 m2/s. What will be value of (approximated) wall shear stress at a distance of 1.2 m from
leading edge, if boundary layer is tripped at leading edge to make it turbulent?

FAQ Have any Doubt ?

A 0.84 Pa

B 6.29 Pa Correct Option

Solution :
(b)

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Saurabh Mahendra Kamble Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
Mechanical Engineering (ME)
C 2.44 Pa
HOME D Can’t be determined
MY TEST
BOOKMARKS QUESTION ANALYTICS
MY PROFILE
REPORTS Q. 25
BUY PACKAGE
ASK AN EXPERT A man of volume 1.2 m3 measures his weight by a weighing machine as 700 N. If he measures his
OFFER
EXCLUSIVE OFFER FOR OTS weight on moon what will be reading of weighing machine? (ρair = 1.1 kg/m3 on earth)
STUDENTS ONLY ON BOOK
PACKAGES FAQ Have any Doubt ?

A 116.67 N

B 118.82 N Correct Option

Solution :
(b)

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(Enroll User)

Saurabh Mahendra Kamble C 114.51 N
D The machine can’t take reading
Course: GATE
Mechanical Engineering (ME) QUESTION ANALYTICS

HOME Q. 26
A conical wooden block (as shown) is floating in an oil of specific gravity 0.9. Wooden block has specific gravity of 0.6.
MY TEST

BOOKMARKS

MY PROFILE

REPORTS

BUY PACKAGE

ASK AN EXPERT

OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

Its metacentric height is equal to________ cm. FAQ Have any Doubt ?
Correct Option
6.96 (6.8 - 7.2)

Solution :
6.96 (6.8 - 7.2)

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