FM-Made Easy

2/10/2019 MADE EASY ONLINE TEST SERIES

Saurabh Mahendra Kamble Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
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 23/30
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Saurabh Mahendra Kamble Q. 27 Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
Mechanical Engineering (ME)
In the arrangement as shown; Gate ’OA’ has width of 2 m inside. Hinge passes through O and rope AB is horizontal, volume of the weight ‘W
HOME ’ when it is made of a material which has a relative density of 6.5 equal to______ Litre.
MY TEST
BOOKMARKS 71.8 (71 - 72.5) FAQ Have any Doubt ?
MY PROFILE Correct Option
REPORTS Solution :
BUY PACKAGE 71.8 (71 - 72.5)
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

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QUESTION ANALYTICS
Saurabh Mahendra Kamble (Enroll User)

Course: GATE Q. 28
Mechanical Engineering (ME)
The speed of propagation C of a capillary wave in deep water is known to be a function only of density ρ, wave length and surface
HOME tension σ. For a given density and wave length. if the surface tension is doubled, propagation speed changes by ________ percentage.
MY TEST
BOOKMARKS Have any Doubt ?
MY PROFILE
REPORTS 41.4 (41.0 - 41.8) Correct Option
BUY PACKAGE
ASK AN EXPERT Solution :
OFFER 41.4 (41.0 - 41.8)
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

QUESTION ANALYTICS 25/30
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Saurabh Mahendra Kamble Q. 29

Course: GATE The velocity of whirl at inlet to the runner of an inward flow reactions turbine is Saurabh Mahendra Kamble  Sign out
Mechanical Engineering (ME) m/s and the velocity of flow(aEtnrionllleUtsiesr)

HOME m/s . The velocity of whirl at exit is   m/s , in the same direction as at inlet and the velocity of flow at exit is m/s , where
MY TEST
BOOKMARKS H is the head in meters. The inner diameter of the runner is 0.7 times the outer diameter. Assume hydraulic efficiency of 83%. The angles of
MY PROFILE the runner vanes at inlet is________ degree.
REPORTS
BUY PACKAGE Have any Doubt ?
ASK AN EXPERT
OFFER 25.31 (25.15 - 25.45) Correct Option
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK Solution :
PACKAGES 25.31 (25.15 - 25.45)

QUESTION ANALYTICS

Q. 30

A tube of length 30 cm and cross section area of 5 cm2 is filled with 100 cc water, one end of tube is closed and another is open. Now this
tube is rotated in horizontal plane about a vertical axis which passes through open end. Now when the tube is rotating at 100 rad/s a small
orifice hole is done on closed end. Velocity of water coming out ________m/s. [Correct upto one decimal place]

FAQ Have any Doubt ?

28.28 (28.00 - 28.60) Correct Option

Solution : 26/30
28.28 (28.00 - 28.60)

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2/10/2019 () MADE EASY ONLINE TEST SERIES

Saurabh Mahendra Kamble Saurabh Mahendra Kamble  Sign out

Course: GATE (Enroll User)
Mechanical Engineering (ME)
QUESTION ANALYTICS
HOME
MY TEST Q. 31
BOOKMARKS Water flows in a rectangular cross section duct as shown. Pressure difference between point (A) and (B) is 3 mm of Hg. Duct is 0.5 m deep
MY PROFILE and 0.25 m wide. When the flow is approximated as irrotational and uniform then discharge is________
REPORTS
BUY PACKAGE
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

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2/10/2019 MADE EASY ONLINE TEST SERIES FAQ Have any Doubt ?
(SEanurorlal bUChsoeMrr)reachteOndprtaioKnamble 
Saurabh Mahendra Kamble 113.5 (112.8 - 114.2) Sign out

Course: GATE Solution :
Mechanical Engineering (ME) 113.5 (112.8 - 114.2)

HOME QUESTION ANALYTICS
MY TEST
BOOKMARKS Q. 32
MY PROFILE
REPORTS
BUY PACKAGE
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

A velocity field is given by as initial condition. Where are in meter. The
FAQ Have any Doubt ?
displacement of a particle of fluid when time changes from t = 0 to t = 1 seconds is equal to _________ m.
Correct Option
35.40 (35.2 - 35.6)

Solution :
35.40 (35.2 - 35.6)

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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

QUESTION ANALYTICS

Q. 33

To spray water in a cricket ground, an unequal arm type sprinkler is used. The pivot is assumed to be spring loaded. The whole assembly

can rotate about an axis passing through the pivot. The total discharge is equal to and diameter of each nozzle is 8 mm. If the arms

rotate at 100 rpm as shown and stiffness of spring is 2 N-m/rad magnitude of angular deflection of spring is ________ degree.

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Saurabh Mahendra Kamble 25.57 (25 - 26) (Enroll User)
Solution :
Course: GATE 25.57 (25 - 26) FAQ Have any Doubt ?
Mechanical Engineering (ME)
QUESTION ANALYTICS Correct Option
HOME
MY TEST
BOOKMARKS
MY PROFILE
REPORTS
BUY PACKAGE
ASK AN EXPERT
OFFER
EXCLUSIVE OFFER FOR OTS
STUDENTS ONLY ON BOOK
PACKAGES

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2/11/2018 MADE EASY ONLINE TEST SERIES

Saurabh Kamble  Sign out

(Enroll User)

ADVANCE : FLUID MECHANICS & HYDRAULIC MACHINES - REPORTS

OVERALL ANALYSIS COMPARISON REPORT SOLUTION REPORT

ALL(33) CORRECT(1) INCORRECT(0) SKIPPED(32)

Saurabh Kamble Q. 1 FAQ Have any Doubt ?
Braking jet in an impulse turbine is used:
Course: GATE
Mechanical Engineering (ME) A
to break the jet of water into two equal parts.
HOME
MY TEST B
BOOKMARKS to bring the runner to rest in a short time.
MY PROFILE
REPORTS Your answer is Correct
BUY PACKAGE
ASK AN EXPERT Solution :
(b)
When the nozzle is completely closed by moving the spear in the forward direction, the amount of
water striking the runner reduces to zero. But the runner due to inertia goes on revolving for a long time.
To stop the runner in a short time, a small nozzle is provided which directs the jet of water on the back
of vanes. This jet of water is called Braking Jet.

C 1/43
to change the direction of the runner

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to change the direction of the runner.

D
to dismantle the turbine for its maintenance purpose

QUESTION ANALYTICS

Q. 2
Two pipes P and Q as shown in the figure are at the same elevation. Water is contained in P and rises to a
level of 1.5 m above it. Carbon monochloride (Sp. gr. = 1.6) is contained in Q. The inverted U-tube is filled
with compressed air at 400 kN/m2. The pressure difference between Q and P if x = 0.4 m is

A FAQ Have any Doubt ?
1.96 kN/m2
Correct Option
B
2.55 kN/m2 2/43

Solution :
(b)

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C
3.62 kN/m2

D
3.96 kN/m2

QUESTION ANALYTICS

Q. 3

The pressure in a liquid at two points in the same horizontal plane are equal. Consider an elevator
accelerating upward and a car accelerating on a horizontal road. The above statement is correct in

FAQ Have any Doubt ?

A
the car only

B Correct Option
the elevator only
3/43
Solution :

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(b)

C
both of them

D
neither of them

QUESTION ANALYTICS

Q. 4

If the number of jets in a Pelton turbine is n, then specific speed is proportional to
FAQ Have any Doubt ?

A
n2

B
n

C Correct Option
n1/2

Solution :
(c)

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D
Independent of n

QUESTION ANALYTICS

Q. 5 and y inside a laminar boundary layer :
Consider the figure which shows the variation of

This distribution is correct for FAQ Have any Doubt ?
A Correct Option

Solution : 5/43
(a)

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B
C
D

QUESTION ANALYTICS The equation of stream line passing through a
FAQ Have any Doubt ?
Q. 6
A fluid flow is represented by the velocity Correct Option
point (2, 4) is
6/43
A

Solution :
(a)

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B 7/43
C
D

QUESTION ANALYTICS

Q. 7

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A Newtonian liquid flows down an inclined plane surface in a steady and fully developed laminar state as
shown in figure

If the width of inclined surface is b, then the volume flow rate is given by FAQ Have any Doubt ?
A

Correct Option

Solution :
(a)

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B
C
D

QUESTION ANALYTICS

Q. 8 9/43

A tank containing fluid is shown in the figure. The maximum distance between the Total Energy Line (TEL)
and the Hydraulic Grade Line (HGL) occurs at
(Assume total mechanical energy remains constant)

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A FAQ Have any Doubt ?
At 1 Correct Option

B
At 2

C
At 3 and 4

Solution :
(c)

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D
only at 4

QUESTION ANALYTICS

Q. 9
A copper cube of 200 mm side length is suspended by a string in oil and water as shown in figure. The cube
is submerged with half of it being in oil and the other half in water. The tension developed in the string is

A FAQ Have any Doubt ?
624.8 N
11/43
B
421.7 N

C
268.4 N

D

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2/11/2018 D MADE EASY ONLINE TEST SERIES
553.3 N

Correct Option

Solution :
(d)

QUESTION ANALYTICS

Q. 10
A tank discharges water on top of a circular plate. The water spreads radially on it. Neglecting the weight of
water on the plate, the net vertical force acting on the plate is __________ kN.

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95.21 (95 - 95.5) FAQ Have any Doubt ?
Solution : Correct Option
95.21 (95 - 95.5)

QUESTION ANALYTICS

Q. 11
Two water tanks are connected to each other through a mercury manometer with inclined tubes as shown in
figure. The value of θ is _____________degree. (Take g = 9.81 m/s2)

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34 (33.5 - 34.5) FAQ Have any Doubt ?
Solution : Correct Option
34 (33.5 - 34.5)

QUESTION ANALYTICS

Q. 12
Two vertical parallel clean plates are placed in water as shown in figure. The water rise due to capillary
action is _______________ mm. (Take σw = 0.073 N/m)

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7.44 (7.3 - 7.5) FAQ Have any Doubt ?
Solution : Correct Option
7.44 (7.3 - 7.5)

QUESTION ANALYTICS

Q. 13
Consider the flow of water past a (6 m × 2 m) plate as shown in figure. Assuming that the pressure is same
everywhere in the flow field, the drag force on the plate is ____________ N. (Take ρ = 1000 kg/m3)

FAQ Have any Doubt ?

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120 (119.5 - 120.5) Correct Option

Solution :
120 (119.5 - 120.5)

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QUESTION ANALYTICS

Q. 14
A closed cylinder 0.6 m in diameter and 0.6 m in height is filled with water (ρ = 1000 kg/m3). If the cylinder is
rotated about its vertical axis at a speed of 20 rad/s, then the ratio of thrust of water on the bottom cover of
the cylinder to the top cover is ___________. (Take g = 10 m/s2)

1.67 (1.64 - 1.69) FAQ Have any Doubt ?
Solution : Correct Option
1.67 (1.64 - 1.69)
17/43
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QUESTION ANALYTICS

Q. 15

A Francis is turbine develops 15000 kW of power at the head of 81 m and speed 375 rpm. The mean
atmospheric pressure is 10.3 m of water and vapour pressure is 0.3 m of water. The critical cavitation factor
for Francis turbine is given by

FAQ Have any Doubt ?

0.83 (0.80 - 0.85) Correct Option

Solution : 18/43
0.83 (0.80 - 0.85)

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QUESTION ANALYTICS

Q. 16

A Pelton wheel is having a mean bucket diameter of 1 m and is running at 100 rpm. The net head on the
Pelton wheel is 700 m. If the side clearance angle is 15°, and discharge through nozzle is 0.1 m3/s, then
power available at the nozzle is ___________ kW.

FAQ Have any Doubt ?

686.7 (680 - 690) Correct Option

Solution :
686.7 (680 - 690)

QUESTION ANALYTICS 19/43

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Q. 17 The volume flow rate through the shaded area as

The velocity field in a flow is given by
shown in the figure is

A FAQ Have any Doubt ?
25 m3/s
Correct Option
B
20 m3/s 20/43

C
15 m3/s

D
30 m3/s

Solution :
(d)

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QUESTION ANALYTICS

Q. 18
Consider a fully developed laminar flow through a pipe, where the velocity distribution is given by

The radial distance from the pipe axis at which the velocity equals the average velocity is 21/43
FAQ Have any Doubt ?

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A
0.5 R

B
0.707 R

Correct Option

Solution :
(b)

C 22/43
0.693 R

D
0.8 R

QUESTION ANALYTICS

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Q. 19
The pressure of illuminating gas is measured as shown in figure. The U-tube at the gas main shows a
pressure of 75 mm of water. What difference should the upper tube show in mm of water? The right hand
columns of both gauge are open to the atmosphere. The density of both air and gas may be assumed
constant throughout the 100 m of elevation. Air weights 1.33 kg(f)/m3 and the gas weights 0.5 kg(f)/m3.

A FAQ Have any Doubt ?
75 mm Correct Option
B
152 mm 23/43
Solution :
(b)

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C
56 mm
D
106 mm

QUESTION ANALYTICS

Q. 20
A block shown in figure has inlet and outlet connections as seen. The net force required to hold the box is [ρ
= 1000 kg/m3] (Assume no mass gets accumulated inside the box)

FAQ Have any Doubt ?

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A
1522.36 N

B
1751.17 N

C
2816.03 N

Correct Option

Solution :
(c)

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D
3112.88 N

QUESTION ANALYTICS

Q. 21

Which one of the following velocity profiles typically represents a fully developed incompressible , turbulent
flow in a pipe?

FAQ Have any Doubt ?

A

B

C 26/43

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Solution : Correct Option
(c)
D

QUESTION ANALYTICS

Q. 22
In the figure shown, a plug is placed at the exit of water pipe. The flow rate is 2 m3/s and the upstream
gauge pressure is 3.5 MPa. The force (F) required to hold the plug is

A FAQ Have any Doubt ?

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50.75 kN

B
38.29 kN

C
84.26 kN

D
27.33 kN

Correct Option

Solution :
(d)

QUESTION ANALYTICS

Q. 23

A tank of water sits on a cart with frictionless wheels as shown. Assuming the water flow is frictionless and

the jet velocity is where, h is the depth of water, then the mass M that is just sufficient to hold the

tank in place is (Take ρ 1000 kg/m3) 28/43

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tank in place is (Take ρ = 1000 kg/m3) FAQ Have any Doubt ?
Correct Option
A
3.82 kg
B
6.54 kg
Solution :
(b)

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C
9.66 kg

D
11.92 kg

QUESTION ANALYTICS

Q. 24

A pelton wheel has to be designed for following specifications:
Power to be developed = 6000 kW; Net head available = 300 m, Speed = 500 rpm. Ratio of jet diameter to
wheel diameter = 1/10. Overall efficiency = 0.85; Coefficient of velocity Cv = 0.98. Speed ratio Φ = 0.46.
What are the number of jets required ?

FAQ Have any Doubt ?

A
2

B
4

C Correct Option
3
30/43
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Solution :
(c)

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D
6

QUESTION ANALYTICS

Q. 25
 A tank shown in the figure has two nozzle exits at different depths as shown in the figure. If the net
horizontal force on the tank is zero, then the ratio is

A FAQ Have any Doubt ?
2
B Correct Option

C 32/43

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Solution :
(c)

D

QUESTION ANALYTICS

Q. 26

Water is discharged from a 50 mm diameter nozzle which is inclined at 30° angle with horizontal. If jet
strikes the ground at a horizontal distance of 3.6 m and a verticle distance of 0.6 m from the nozzle as
shown in the figure. The rate of discharge is ______________ m3/sec.

FAQ Have any Doubt ?

0 011 33/43

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Correct Option

Solution :
0.011

QUESTION ANALYTICS

Q. 27 34/43

An inward flow reaction turbine has external and internal diameters as 0.9 m and 0.45 m respectively. The

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turbine is running at 200 rpm. The guide blades make an angle of 10° to the tangent of the wheel and
discharge at outlet is radial. Head at inlet of the turbine is _____________ m.
[Velocity of flow at inlet and outlet = 1.8 m/s and assume no friction loss]

FAQ Have any Doubt ?

9.97 (9.5 - 10.5) Correct Option

Solution :
9.97 (9.5 - 10.5)

QUESTION ANALYTICS 35/43

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Q. 28

Consider two tubes of radii r1 and r2, and length L1 and L2 respectively. They are connected in series and a
liquid flows through them in stream line laminar conditions. P1 and P2 are the pressure differences across

the two tubes. If

FAQ Have any Doubt ?

0.5 (0.49 - 0.51) Correct Option

Solution :
0.5 (0.49 - 0.51)

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QUESTION ANALYTICS

Q. 29

Consider a cylindrical vessel of height 600 mm. It has a small orifice hole at its bottom. The orifice is initially
closed and water is filled in it upto height H. Now the top is completely sealed with a cap and the orifice at
the bottom is opened. Some water comes out from the orifice and the water level in the vessel becomes
steady with height of water column being 200 mm. The fall in height of water level due to opening of the

orifice is ______________ mm. Neglect any

surface tension effect)

FAQ Have any Doubt ?

8 (7.9 - 8.1) Correct Option

Solution :
8 (7.9 - 8.1)

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2/11/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 30
A differential manometer is attached to two sections A and B, in a horizontal pipe through which water is
flowing at a steady rate as shown in figure. The densities of water and mercury are 1000 kg/m3 and 14000
kg/m3 respectively. If PA = 158 kPa, then the pressure at point B (PB) is _________ kPa.
(Take g = 10 m/s2)

80 (79 - 81) FAQ Have any Doubt ?
Solution : Correct Option
80 (79 - 81)
38/43
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2/11/2018 MADE EASY ONLINE TEST SERIES

QUESTION ANALYTICS

Q. 31
Two identical orifices are mounted on one side of a tank as shown in figure. If the jet of water from the two
orifices intersect at a horizontal distance of 8 m from the tank, then the value of h is ____________ m.
(Take Cv = 1)

2.33 (2.2 - 2.4) FAQ Have any Doubt ?
Correct Option
Solution :
2.33 (2.2 - 2.4) 39/43

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QUESTION ANALYTICS

Q. 32

Three pipes of length 900 m, 600 m and 300 m and of diameter 600 mm, 450 mm and 350 mm respectively
are connected in series. These pipes are to be replaced by a single pipe of length 1800 m. The diameter of
such pipe is _____________ mm.

FAQ Have any Doubt ?

446.7 (446 - 447) Correct Option

Solution :
446.7 (446 - 447)

QUESTION ANALYTICS

Q. 33

A differential mercury manometer is connected to two piezometer 2.5 m apart to the flow of oil through a

https://onlinetestseriesmadeeasy.in/madeeasy/index.php?pageName=timeMainaglemebntReTphort&dteisftfid=271&t=icont-i1&testTypei=2 h d (h h) di di f 2 i 41/43

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vertical tube. The difference in piezometric head (hA – hB) corresponding to a gauge reading of 2 cm is

__________ m.

0.282 (0.27 - 0.29) FAQ Have any Doubt ?
Correct Option
Solution :
0.282 (0.27 - 0.29)

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