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Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - GATE MCQ


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30 Questions MCQ Test - Mechanical Engineering - ME 2012 GATE Paper (Practice Test)

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) for GATE 2024 is part of GATE preparation. The Mechanical Engineering - ME 2012 GATE Paper (Practice Test) questions and answers have been prepared according to the GATE exam syllabus.The Mechanical Engineering - ME 2012 GATE Paper (Practice Test) MCQs are made for GATE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Mechanical Engineering - ME 2012 GATE Paper (Practice Test) below.
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Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 1

Q. 1 – Q. 5 carry one mark each.

Choose the most appropriate alternative from the options given below to complete the following sentence:

Suresh’s dog is the one ––––––––– was hurt in the stampede.

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 2

The cost function for a product in a firm is given by 5q2, where q is the amount of production. The firm can sell the product at a market price of Rs. 50 per unit. The number of units to be produced by the firm such that the profit is maximized is

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Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 3

Choose the most appropriate alternative from the options given below to complete the following sentence:

Despite several ––––––––– the mission succeeded in its attempt to resolve the conflict.

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 4

Which one of the following options is the closest in meaning to the word given below?

Mitigate

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 5

C hoose the grammatically INCORRECT sentence:

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 6

Q. 6 - Q. 10 carry two marks each.

Q. Given the sequence of terms, AD CG FK JP, the next term is

Detailed Solution for Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 6

Here 1st letter of each term in order are: A C F J
Now In alphabets, A and C have a difference of 1 alphabet, C and F have a difference of 2, and F and J have a difference of 3. Hence next term here should contain its 1st letter as an alphabet with a difference of 4 after J, i.e O.

Similarly, 2nd letter of each term in order are: D G K P
Now In alphabets, D and G have a difference of 2 alphabets, G and K have a difference of 3, and K and P have a difference of 4. Hence next term here should contain its 2nd letter as an alphabet with a difference of 5 after P, i.e V.

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 7

Wanted Temporary, Part-time persons for the post of Field Interviewer to conduct personal interviews to collect and collate economic data. Requirements: High School-pass, must be available for Day, Evening and Saturday work. Transportation paid, expenses reimbursed.

Which one of the following is the best inference from the above advertisement?

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 8

A political party orders an arch for the entrance to the ground in which the annual convention is being held. The profile of the arch follows the equation y = 2x – 0.1x2 where y is the height of the arch in meters. The  maximum possible height of the arch is

Detailed Solution for Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 8

 y = 2x – 0.1x2
dy/dx = 2 – 0.2x
So the value maximizes at 2 – 0.2x = 0
=> x = 10
=> y = 20 – 10 = 10 meters

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 9

An automobile plant contracted to buy shock absorbers from two suppliers X and Y. X supplies 60% and Y supplies 40% of the shock absorbers. All shock absorbers are subjected to a quality test.

The ones that pass the quality test are considered reliable. Of X’s shock absorbers, 96% are reliable. Of Y’s shock absorbers, 72% are reliable.

The probability that a randomly chosen shock absorber, which is found to be reliable, is made by Y is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 10

W hich of the following assertions are CORRECT?

P: Adding 7 to each entry in a list adds 7 to the mean of the list

Q: Adding 7 to each entry in a list adds 7 to the standard deviation of the list

R: Doubling each entry in a list doubles the mean of the list

S: Doubling each entry in a list leaves the standard deviation of the list unchanged

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 11

Q. 11 – Q. 35 carry one mark each.

Q. In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the
material removal rate

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 12

Match the following metal forming processes with their associated stresses in the workpiece.

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 13

In an interchangeable assembly, shafts of size   mate with holes of size  The maximum interference (in microns) in the assembly is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 14

During normalizing process of steel, the specimen is heated

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 15

Oil flows through a 200 mm diameter horizontal cast iron pipe (friction factor, f = 0.0225) of length 500 m. The volumetric flow rate is 0.2 m3/s. The head loss (in m) due to friction is (assume g = 9.81 m/s2)

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 16

For an opaque surface, the absorptivity (α), transmissivity (τ) and reflectivity (ρ) are related by the equation:

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 17

Steam enters an adiabatic turbine operating at steady state with an enthalpy of 3251.0 kJ/kg and leaves as a saturated mixture at 15 kPa with quality (dryness fraction) 0.9. The enthalpies of the saturated liquid and vapor at 15 kPa are hf = 225.94 kJ/kg and hg = 2598.3 kJ/kg respectively. The mass flow rate of steam is 10 kg/s. Kinetic and potential energy changes are negligible. The power output of the turbine in MW is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 18

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

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 19

A solid disc of radius r rolls without slipping on a horizontal floor with angular velocity ω and angular acceleration α. The magnitude of the acceleration of the point of contact on the disc is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 20

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

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 21

The area enclosed between the straight line y = x and the parabola y = x2 in the x-y plane is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 22

Consider the function f (x) =  |x| in the interval -1 < x < 1. At the point x = 0, f(x) is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 23

Which one of the following is NOT a decision taken during the aggregate production planning stage?

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 24

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 25

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

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 26

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

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 27

The velocity triangles at the inlet and exit of the rotor of a turbomachine are shown. V denotes the absolute velocity of the fluid, W denotes the relative velocity of the fluid and U denotes the blade velocity. Subscripts 1 and 2 refer to inlet and outlet respectively. If V2 = W1 and V1 = W2, then the degree of reaction is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 28

W hich one of the following configurations has the highest fin effectiveness?

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 29

A n ideal gas of mass m and temperature T1 undergoes a reversible isothermal process from an initial pressure P1 to final pressure P2. The heat loss during the process is Q. The entropy change ΔS of the gas is

Mechanical Engineering - ME 2012 GATE Paper (Practice Test) - Question 30

In the mechanism given below, if the angular velocity of the eccentric circular disc is 1 rad/s, the angular velocity (rad/s) of the follower link for the instant shown in the figure is

Note: All dimensions are in mm.

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