GATE Mechanical Solved question papers

#11 January 5th, 2014, 09:46 AM

I am going to participate in GATE Mechanical Engineering exam, so for better preparation, need previous question paper, will you please provide here?

Aakashd · #12 January 5th, 2014, 10:44 AM

This is the GATE Mechanical Engineering exam questions;

In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the
material removal rate
(A) increases continuously.
(B) decreases continuously.
(C) decreases, becomes stable and then increases.
(D) increases, becomes stable and then decreases.

During normalizing process of steel, the specimen is heated
(A) between the upper and lower critical temperature and cooled in still air.
(B) above the upper critical temperature and cooled in furnace.
(C) above the upper critical temperature and cooled in still air.
(D) between the upper and lower critical temperature and cooled in furnace.

The following are the data for two crossed helical gears used for speed reduction:
Gear I : Pitch circle diameter in the plane of rotation 80 mm and helix angle 30º
Gear II : Pitch circle diameter in the plane of rotation 120 mm and helix angle 22.5º
If the input speed is 1440 rpm, the output speed in rpm is
(A) 1200 (B) 900 (C) 875 (D) 720

A thin walled spherical shell is subjected to an internal pressure. If the radius of the shell is
increased by 1% and the thickness is reduced by 1%, with the internal pressure remaining the same,
the percentage change in the circumferential (hoop) stress is
(A) 0 (B) 1 (C) 1.08 (D) 2.02

Consider the function ( ) f x x  in the interval1 1 x. At the point x = 0, f(x) is
(A) continuous and differentiable.
(B) non-continuous and differentiable.
(C) continuous and non-differentiable.
(D) neither continuous nor differentiable.

Which one of the following is NOT a decision taken during the aggregate production planning
stage?
(A) Scheduling of machines (B) Amount of labour to be committed
(C) Rate at which production should happen (D) Inventory to be carried forward

A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies
to a height of 25 mm. The percentage change in diameter is
(A) 0 (B) 2.07 (C) 20.7 (D) 41.4

For detailed paper here is attachment:;

#13 January 7th, 2014, 12:57 PM

Please provide me question paper for the GATE mechanical engineering examination ??

Aakashd · #14 January 8th, 2014, 10:13 AM

here I am giving you question paper for the GATE mechanical engineering examination in a PDF file attached with it so you can get it easily…

Some questions are given below :

Q.15 A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2 mm depth by a
cutter of 10 mm diameter between points (0, 0) and (100, 100) on the XY plane (dimensions in mm).

The feed rate used for milling is 50 mm/min. Milling time for the slot (in seconds) is
(A) 120 (B) 170 (C) 180 (D) 240
Q.16 A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies
to a height of 25 mm. The percentage change in diameter is
(A) 0 (B) 2.07 (C) 20.7 (D) 41.4

Q.30 An incompressible fluid flows over a flat plate with zero pressure gradient. The boundary layer
thickness is 1 mm at a location where the Reynolds number is 1000. If the velocity of the fluid
alone is increased by a factor of 4, then the boundary layer thickness at the same location, in mm
will be
(A) 4 (B) 2 (C) 0.5 (D) 0.25

Q.31 A room contains 35 kg of dry air and 0.5 kg of water vapor. The total pressure and temperature of
air in the room are 100 kPa and 25°C respectively. Given that the saturation pressure for water at
25°C is 3.17 kPa, the relative humidity of the air in the room is
(A) 67% (B) 55% (C) 83% (D) 71%

Q.32 A fillet welded joint is subjected to transverse loading F as shown in the figure. Both legs of the
fillets are of 10 mm size and the weld length is 30 mm. If the allowable shear stress of the weld is
94 MPa, considering the minimum throat area of the weld, the maximum allowable transverse load
in kN is

Statement for Linked Answer Questions 52 and 53:
Air enters an adiabatic nozzle at 300 kPa, 500 K with a velocity of 10 m/s. It leaves the nozzle at 100 kPa
with a velocity of 180 m/s. The inlet area is 80 cm2. The specific heat of air Cp is 1008 J/kg.K.

Q.52 The exit temperature of the air is
(A) 516 K (B) 532 K (C) 484 K (D) 468 K

Q.53 The exit area of the nozzle in cm2 is
(A) 90.1 (B) 56.3 (C) 4.4 (D) 12.9

#15 January 9th, 2014, 02:18 PM

Can you give me question paper for the GATE Mechanical Engineering examination ??

Aakashd · #16 January 9th, 2014, 06:17 PM

Here I am giving you question paper for the GATE Mechanical Engineering examination in a PDF file attached with it so you can download it free of cost ..

Some questions are given below :
Q.1 In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the
material removal rate
(A) increases continuously.
(B) decreases continuously.
(C) decreases, becomes stable and then increases.
(D) increases, becomes stable and then decreases.
Q.4 During normalizing process of steel, the specimen is heated
(A) between the upper and lower critical temperature and cooled in still air.
(B) above the upper critical temperature and cooled in furnace.
(C) above the upper critical temperature and cooled in still air.
(D) between the upper and lower critical temperature and cooled in furnace.
Q.15 A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2 mm depth by a
cutter of 10 mm diameter between points (0, 0) and (100, 100) on the XY plane (dimensions in mm).
The feed rate used for milling is 50 mm/min. Milling time for the slot (in seconds) is
(A) 120 (B) 170 (C) 180 (D) 240

Q.16 A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies
to a height of 25 mm. The percentage change in diameter is
(A) 0 (B) 2.07 (C) 20.7 (D) 41.4
Q.21 A circular solid disc of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as a
flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in Joules is
(A) 395 (B) 790
(C) 1580 (D) 3160

Q.28 In a single pass drilling operation, a through hole of 15 mm diameter is to be drilled in a steel plate
of 50 mm thickness. Drill spindle speed is 500 rpm, feed is 0.2 mm/rev and drill point angle is
118°. Assuming 2 mm clearance at approach and exit, the total drill time (in seconds) is
(A) 35.1 (B) 32.4 (C) 31.2 (D) 30.1
Q.30 An incompressible fluid flows over a flat plate with zero pressure gradient. The boundary layer
thickness is 1 mm at a location where the Reynolds number is 1000. If the velocity of the fluid
alone is increased by a factor of 4, then the boundary layer thickness at the same location, in mm
will be
(A) 4 (B) 2 (C) 0.5 (D) 0.25

Q.31 A room contains 35 kg of dry air and 0.5 kg of water vapor. The total pressure and temperature of
air in the room are 100 kPa and 25°C respectively. Given that the saturation pressure for water at
25°C is 3.17 kPa, the relative humidity of the air in the room is
(A) 67% (B) 55% (C) 83% (D) 71%
Q.38 In a single pass rolling process using 410 mm diameter steel rollers, a strip of width 140 mm and
thickness 8 mm undergoes 10 % reduction of thickness. The angle of bite in radians is
(A) 0.006 (B) 0.031 (C) 0.062 (D) 0.600

#17 January 10th, 2014, 01:21 PM

Any buddy here provides me the Solved Question Papers for GATE - Mechanical Engineering????

Aakashd · #18 January 10th, 2014, 03:50 PM

Here I am providing you the Solved Question Papers for GATE - Mechanical Engineering

The eigen values of symmetric matrix are all
(A) Complex with non-zero positive imaginary part
(B) Complex with non-zero negative imaginary part
(C) Real
(D) Pure imaginary
Answer: (C)

Match the CORRECT pairs:
Numerical Integration Scheme Order of Fitting Polynomial
P. Simpson’s 3/8 Rule 1. First
Q. Trapezoidal Rule 2. Second
R. Simpson’s 1/3 Rule 3. Third
(A) P-2; Q-1; R-3 (B) P-3; Q-2; R-1 (C) P-1; Q-2; R-3 (D) P-3; Q-1; R-2
Answer: (D)

The threaded bolts A and B of same material and length are subjected to identical
tensile load. If the elastic strain energy stored in bolt A is 4 times that of the bolt B
and the mean diameter of bolt A is 12mm, the mean diameter of bolt B in mm is
(A) 16 (B) 24 (C) 36 (D) 48
Answer: (B)

The pressure, dry bulb temperature, and relative humidity of air in a room are
1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is
4.25kPa, the specific humidity of the room air in kg water vapour / kg dry air is
(A) 0.0083 (B) 0.0101 (C) 0.0191 (D) 0.0232
Answer: (C)

Rest of the Questions are attached in below file which is free of cost

#19 January 11th, 2014, 02:23 PM

Will you please provide me the Solved Question Papers for GATE - Mechanical Engineering????

Aakashd · #20 January 11th, 2014, 03:59 PM

Here I am providing you the Solved Question Papers for GATE - Mechanical Engineering

The eigen values of symmetric matrix are all
(A) Complex with non-zero positive imaginary part
(B) Complex with non-zero negative imaginary part
(C) Real
(D) Pure imaginary
Answer: (C)

Match the CORRECT pairs:
Numerical Integration Scheme Order of Fitting Polynomial
P. Simpson’s 3/8 Rule 1. First
Q. Trapezoidal Rule 2. Second
R. Simpson’s 1/3 Rule 3. Third
(A) P-2; Q-1; R-3 (B) P-3; Q-2; R-1 (C) P-1; Q-2; R-3 (D) P-3; Q-1; R-2
Answer: (D)

The threaded bolts A and B of same material and length are subjected to identical
tensile load. If the elastic strain energy stored in bolt A is 4 times that of the bolt B
and the mean diameter of bolt A is 12mm, the mean diameter of bolt B in mm is
(A) 16 (B) 24 (C) 36 (D) 48
Answer: (B)

The pressure, dry bulb temperature, and relative humidity of air in a room are
1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is
4.25kPa, the specific humidity of the room air in kg water vapour / kg dry air is
(A) 0.0083 (B) 0.0101 (C) 0.0191 (D) 0.0232
Answer: (C)

Rest of the Questions are attached in below file which is free of cost