Recent questions tagged power-screws

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The efficiency of the power screw neglecting collar friction is given by

asked Dec 21, 2017 in md by chandu (215k points)

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The efficiency of a power screw is maximum when the lead (helix) angle is

asked Dec 21, 2017 in md by chandu (215k points)

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The core diameter of the screw is 40 mm. The shear stress due to this torque in the power screw is

asked Dec 21, 2017 in md by chandu (215k points)

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Which of the following screw threads is adopted for power transmission in either direction?

asked Dec 21, 2017 in md by chandu (215k points)

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Multistate threads are used to get

asked Dec 21, 2017 in md by chandu (215k points)

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The differential screw is used in a

asked Dec 21, 2017 in md by chandu (215k points)

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The efficiency of a power screw is a function of

asked Dec 21, 2017 in md by chandu (215k points)

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What is the number of threads in engagement with the screw?

asked Dec 21, 2017 in md by chandu (215k points)

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Which one of the following is the avergae shear stress over the screw thread?

asked Dec 21, 2017 in md by chandu (215k points)

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The maximum efficiency of a screw jack having square threads with friction angle

asked Dec 21, 2017 in md by chandu (215k points)

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In case of power screws what is the combination of materials used for the screw and the nut?

asked Dec 21, 2017 in md by chandu (215k points)

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In case of power screws what is the combination of materials used for the screw and the nut?

asked Dec 21, 2017 in md by chandu (215k points)

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Stresses in a screw thread are estimated by considering the thread to be

asked Dec 21, 2017 in md by chandu (215k points)

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‘V’ threads are usually not used for this application due to low efficiency. This is because

asked Dec 21, 2017 in md by chandu (215k points)

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Consider the following statements regarding power screws.

asked Dec 21, 2017 in md by chandu (215k points)

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Which one of the following is the value of helix angle for maximum efficiency of a square threaded screw?

asked Dec 21, 2017 in md by chandu (215k points)

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The condition for the maximum efficiency for motion up and motion down the plane is

asked Dec 21, 2017 in md by chandu (215k points)

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If P is the pitch of a square theread, then the depth of thread d is given by

asked Dec 21, 2017 in md by chandu (215k points)

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A screw jack is said to be self – locking if its efficiency is

asked Dec 21, 2017 in md by chandu (215k points)

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Buttress thread is a modified square thread profile which is employed on the lead screw of

asked Dec 21, 2017 in md by chandu (215k points)

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