Diameter of a bolt hole is usually taken as
A. Gross diameter of bolt
B. Nominal diameter +1.5 mm
C. Nominal diameter +2.0 mm
D. Nominal diameter of bolt
Answer: Option B
Solution(By Examveda Team)
Bolt Hole Diameter: In the design of steel structures, the diameter of a bolt hole is an important parameter to ensure proper fitting and to allow for slight misalignments during construction.Standard Practice: According to standard practice and codes, the diameter of a bolt hole is usually taken as the nominal diameter of the bolt plus an additional allowance to account for tolerances and ease of installation.
Nominal Diameter +1.5 mm: The most common allowance added to the nominal diameter is 1.5 mm. This ensures that the bolt can fit through the hole without being too tight, while also maintaining structural integrity.
Other Options:
Gross diameter of bolt is not a standard term used for determining bolt hole diameter.
Nominal diameter +2.0 mm is not as commonly used as the 1.5 mm allowance.
Nominal diameter of bolt without any additional allowance does not account for tolerances and is not practical for construction.
Therefore, the diameter of a bolt hole is usually taken as Nominal diameter +1.5 mm.
This Question Belongs to Civil Engineering >> Design Of Steel Structures
Option A is correct, diameter of bolt hole is usually taken as gross diameter of bolt
For 12-14 mm diameter. Dia of hole = dia+1mm
For 16 -24 mm diameter. Dia of hole = dia+2mm
For. >27mm diameter dia of hole = dia+3mm
How??it should be nominal + 2mm
C is correct
Answer should be( A) that hole is called as gross dia of bolt
C is correct and b is correct for rivet
C is the right answer for bolt.
B is for rivet.