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ESE ME: Strength of Materials Champion Quiz 3

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Question 1

A machine frame shown in the figure below is subjected to a horizontal force of 600 N parallel to z–direction.

The normal and shear stresses in MPa at point P are respectively

Question 2

A frame of two arms of equal length L is shown in the adjacent figure. The flexural rigidity of each arm of the frame is EI. The vertical deflection at the point of application of load P is

Question 3

A torque T is applied at the free end of a stepped rod of circular cross-sections as shown in the figure. The shear modulus of the material of the rod is G. The expression for d to produce an angular twist

at the free end is
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Question 4

A solid circular shaft of 60 mm diameter transmits a torque of 1600 N.m. The value of maximum shear stress developed is

Question 5

The magnitude of shear induced in a shaft due to applied torque varies

Question 6

In power transmission shafts, if the polar moment of inertia of a shaft is doubled, then what is the torque required to produce the same angle of twist?

Question 7

A cantilever beam of rectangular cross-section is subjected to load at free end. If the depth of the beam is doubled and load is halved, deflection of the free end as compared to original will be

Question 8

A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is $Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE ME 18-Mar\GATE-ME-2015-P2_files\image078.png$ . The inner diameter of the shaft is 0.7 times the outer diameter. The modulus of rigidity is 80 GPa. The outside diameter (in mm) of the shaft is _______

Question 9

Engineering strain of a mild steel sample is recorded as 0.100%. The true strain is _________.

Question 10

A metallic rod of 500 mm length and 50 mm diameter, when subjected to a tensile force of 100 kN at the ends, experiences an increase in its length by 0.5 mm and a reduction in its diameter by 0.015 mm. The Poisson's ratio of the rod material is ________.

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ESE & GATE ME Strength of Materials

Jul 8ESE & GATE ME