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GATE 2021 ME : Toppers Quiz 9 (App update required to attempt this test)

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Question 1

During torsional vibration of a shaft the node is characterized by the____

Question 2

The equation $Description: Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-1_files\image249.png$ represents.

Question 3

Two identical trusses support a load of 200N as shown in the figure. The length of each truss 1.5 m, cross-sectional area is 180 mm²; young’s modulus E= 210GPa. The force in the truss AB is ________.

Question 4

The figure shows a plane truss having a vertical downward force of P applied at joint B. F_ED is

Question 5

In vibration isolation system, if

, then for all values of damping factor, the transmissibility will always be _____

Question 6

In which of the following non-traditional machining processes, tool wear doesn’t occur?

Question 7

It is required to design a Hydrodynamic journal bearing for a bearing pressure of 1.7 N/mm². The load carried by the bearing is 8330 N. If the length of the journal is 70 mm. what is type of bearing?

Question 8

A Particular section of steel shaft is subjected to maximum bending stress of 160 MPa and a maximum shear stress equal to 60 MPa. The yield point in tension of the material is 400 MPa. If maximum principal stress theory is used, the FOS will be _______.

Question 9

The maximum blade efficiency of a reaction steam turbine having a nozzle angle of

is _________

Question 10

A cam with an ascent angle of 120

and maximum displacement of follower of 20 mm is rotating with an angular velocity of 88 rad/s and has a descent and then followed by dwell. If cam follower program has a constant acceleration then find the value of maximum velocity during ascent of the follower (in m/s) ________.

Question 11

The velocity of flow field is V =

. What is the vorticity vector at (1,1,1)?

Question 12

Two heat engines are connected in series in such a way that rejected heat of 1^st engine is directly fed to 2^nd engine. If the source temperature is 1600 K and sink temperature is 400 K. Then calculate intermediate temperature If both the engine have same efficiency.

Question 13

A circular plate of diameter 1.5 m which is placed vertically in water in such a way that the centre of the plate is 3 m below the free surface of water.The position (in mm) of centre of pressure from the free surface is _____.

Question 14

Which of the following unit cells are arranged in ascending order of atomic packing factor? (The abbreviations used are BCC = Body Centred Cubic, FCC = Face Centred Cubic, SC = Simple Cubic, HCP = Hexagonal Closed Packed)

Question 15

A simply supported beam AB shown below is loaded with a couple μ at the end B . For the given beam, the equation of the elastic curve will be ______.

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ESE & GATE ME General

Jul 22ESE & GATE ME