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Machine Design

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44047
44045
43929
43869

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Machine Design
The value of Lewis form factor used in design of gears is

Dependent on number of teeth of a gear
Dependent on system of teeth
All of these
Independent of size of teeth

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Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

(T₁ + T₂ + Tc)/2
T₁ - T₂ + Tc
(T₁ - T₂ + Tc)/2
T₁ + T₂ + Tc

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Machine Design
In a horizontal flat belt drive, it is customary to use

Idler pulley
Top side of belt as slack side
None of these
Bottom side of belt as slack side

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Machine Design
For applications involving high stresses in one direction only the following type of thread would be best suited

Square thread
Buttress thread
Acme thread
ISO metric thread

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Machine Design
The shock resistance of steel is increased by adding

Nickel
Cobalt and molybdenum
Chromium
Nickel and chromium

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