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GATE ME 2019: Topper's Quiz-7 (App update required to attempt this test)
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Question 1
The number of atoms per unit cell and the number of slip systems, respectively, for a face-centered cubic (FCC) crystal are
Question 2
For the given structure, can the truss bear the loads on its joints :
Question 3
A mercury-water manometer has a gauge difference of 250 mm. What will be the difference in pressure (in m)?
Question 4
Saturated steam at 100 °C condenses on the outside of a tube. Cold fluid enters the tube at 20 ° C and exists at 50 °C. The value of the Log Mean Temperature Difference (LMTD) is ________ °C.
Question 5
Consider the schematic of a riveted lap joint subjected to tensile load F, as shown below. Let d be the diameter of the rivets, and 
be the maximum permissible tensile stress in the plates. What should be the minimum value for the thickness of the plates to guard against tensile failure of the plates? Assume the plates to be identical.
be the maximum permissible tensile stress in the plates. What should be the minimum value for the thickness of the plates to guard against tensile failure of the plates? Assume the plates to be identical. Question 6
The homogeneous state of stress for a metal part undergoing plastic deformation is given by Stress tensor =
Where the stress component values are in MPa. Using Von - mises yield criterion, the value of estimated yield stress (in MPa ) is_____.
Where the stress component values are in MPa. Using Von - mises yield criterion, the value of estimated yield stress (in MPa ) is_____.Question 7
During the electrochemical machining (ECM) of iron (atomic weight = 56. valency = 2) at current of 1000 A with 90% current efficiency, the material removal rate was observed to be 0.26 gm/s. If Titanium (atomic weight = 48, valency = 3) is machined by the ECM process at the current of 2000 A with 90% current efficiency, the expected material removal rate in gm/s will be
Question 8
Consider the following statements pertaining to linear torsion analysis:
1). The cross-section under torsion remains plane and undistorted for circular and non-circular shaft.
2). Deformation is considered in the elastic range.
3). Shearing stress in the shaft varies linearly with the radial distance from axis of the shaft.
Which of the above are valid?
1). The cross-section under torsion remains plane and undistorted for circular and non-circular shaft.
2). Deformation is considered in the elastic range.
3). Shearing stress in the shaft varies linearly with the radial distance from axis of the shaft.
Which of the above are valid?
Question 9
An epicyclic gear train is shown in the figure below. The number of teeths on A and B are 80 and 200. The speed of arm a if A rotates at 100 rpm clockwise and B is stationary, will be
Question 10
A pelton wheel is rotating at a speed of 200 rpm and developed 5200 kW when working under a head of 250m with an overall efficiency of 82%. The discharge when the turbine is working under a head of 150 m will be ___________ m3/s.
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