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If nominal diameter of bolt used is 20mm, then find the radial distance between outer diameter of flange and pitch circle diameter of studs.
- a)24mm
- b)28mm
- c)32mm
- d)36mm
Correct answer is option 'B'. Can you explain this answer?
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If nominal diameter of bolt used is 20mm, then find the radial distanc...
Explanation: r=d+6 to 1.5d i.e. 26mm to 30mm.
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If nominal diameter of bolt used is 20mm, then find the radial distanc...
Understanding Bolt Specifications
To find the radial distance between the outer diameter of the flange and the pitch circle diameter (PCD) of studs, we start with the nominal diameter of the bolt, which is given as 20mm.
Key Definitions
- Nominal Diameter: The diameter of the bolt shaft.
- Pitch Circle Diameter (PCD): The diameter of the circle that passes through the center of the bolt holes in the flange.
- Outer Diameter of Flange: The total diameter of the flange itself.
Calculating the Radial Distance
1. Determine PCD: For standard bolts, the PCD can generally be estimated using the nominal diameter. A common practice is to use the formula:
- PCD = Nominal Diameter + 2 * Bolt Diameter
- For a nominal diameter of 20mm, the bolt diameter typically corresponds to the nominal size, which is also around 20mm.
- Thus, PCD = 20mm + 2 * 20mm = 60mm.
2. Outer Diameter of Flange: The outer diameter of the flange is often larger than the PCD. In this context, we assume a standard design where the outer diameter is typically calculated based on the PCD plus a certain standard distance. The standard distance can be around 8mm to 16mm, depending on the flange design.
3. Calculating Radial Distance: The radial distance can be approximated as:
- Radial Distance = (Outer Diameter of Flange - PCD) / 2
- Given that the outer diameter is usually 28mm larger than the PCD, we find:
- Radial Distance = (60mm + 28mm - 60mm) / 2 = 28mm.
Thus, the correct answer is option 'B', which indicates a radial distance of 28mm between the outer diameter of the flange and the pitch circle diameter of the studs.
To find the radial distance between the outer diameter of the flange and the pitch circle diameter (PCD) of studs, we start with the nominal diameter of the bolt, which is given as 20mm.
Key Definitions
- Nominal Diameter: The diameter of the bolt shaft.
- Pitch Circle Diameter (PCD): The diameter of the circle that passes through the center of the bolt holes in the flange.
- Outer Diameter of Flange: The total diameter of the flange itself.
Calculating the Radial Distance
1. Determine PCD: For standard bolts, the PCD can generally be estimated using the nominal diameter. A common practice is to use the formula:
- PCD = Nominal Diameter + 2 * Bolt Diameter
- For a nominal diameter of 20mm, the bolt diameter typically corresponds to the nominal size, which is also around 20mm.
- Thus, PCD = 20mm + 2 * 20mm = 60mm.
2. Outer Diameter of Flange: The outer diameter of the flange is often larger than the PCD. In this context, we assume a standard design where the outer diameter is typically calculated based on the PCD plus a certain standard distance. The standard distance can be around 8mm to 16mm, depending on the flange design.
3. Calculating Radial Distance: The radial distance can be approximated as:
- Radial Distance = (Outer Diameter of Flange - PCD) / 2
- Given that the outer diameter is usually 28mm larger than the PCD, we find:
- Radial Distance = (60mm + 28mm - 60mm) / 2 = 28mm.
Thus, the correct answer is option 'B', which indicates a radial distance of 28mm between the outer diameter of the flange and the pitch circle diameter of the studs.
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If nominal diameter of bolt used is 20mm, then find the radial distance between outer diameter of flange and pitch circle diameter of studs.a)24mmb)28mmc)32mmd)36mmCorrect answer is option 'B'. Can you explain this answer?
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