When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring)

Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring)

(8WD/ πd3) × K

(WD/ πd3) × K

(2WD/ πd3) × K

(4WD/ πd3) × K

(8WD/ πd3) × K

(WD/ πd3) × K

(2WD/ πd3) × K

(4WD/ πd3) × K

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Machine Design
Rivets are generally specified by

Thickness of plates to be riveted

Diameter of head

Nominal diameter

Length of rivet

Thickness of plates to be riveted

Diameter of head

Nominal diameter

Length of rivet

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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

(T₁ - T₂ + Tc)/2

T₁ - T₂ + Tc

(T₁ + T₂ + Tc)/2

T₁ + T₂ + Tc

(T₁ - T₂ + Tc)/2

T₁ - T₂ + Tc

(T₁ + T₂ + Tc)/2

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Machine Design
Tapered roller bearings can take

Radial load only

Axial load only

Both radial and axial loads and the ratio of these being less than unity

Both radial and axial loads and the ratio of these being greater than unity

Radial load only

Axial load only

Both radial and axial loads and the ratio of these being less than unity

Both radial and axial loads and the ratio of these being greater than unity

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Machine Design
Rankine Gordon formula for buckling is valid for

Long column

Short and long column

Short column

Very long column

Long column

Short and long column

Short column

Very long column

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Machine Design
If a bearing is designated by the number 305, it means that the bearing is of

Light series whose bore is 25 mm

Medium series whose bore is 25 mm

Light series whose bore is 5 mm

Medium series whose bore is 5 mm

Light series whose bore is 25 mm

Medium series whose bore is 25 mm

Light series whose bore is 5 mm

Medium series whose bore is 5 mm

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Machine Design

Machine Design Rivets are generally specified by

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

Machine Design Tapered roller bearings can take

Machine Design Rankine Gordon formula for buckling is valid for

Machine Design If a bearing is designated by the number 305, it means that the bearing is of

Machine Design
Rivets are generally specified by

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

Machine Design
Tapered roller bearings can take

Machine Design
Rankine Gordon formula for buckling is valid for

Machine Design
If a bearing is designated by the number 305, it means that the bearing is of