The rivets which are heated and then driven in the field are known________________.
Field Driven Rivets Explained
The question requires identifying rivets based on being heated and driven in the field.
Analyzing Rivet Installation Criteria
Key characteristics mentioned are:
- Field Installation: This specifies that the installation occurs at the construction site itself, not in a workshop.
- Heated Rivets: This indicates the rivets undergo a heating process before driving, distinguishing them from cold driven rivets.
Matching Description to Rivet Type
Evaluating the provided options against these criteria:
- Option B: power driven field rivets accurately represents rivets installed on-site ('field'). The 'power driven' aspect often involves heating for effective installation in field conditions.
- Option A (power driven shop rivets) is incorrect because 'shop' indicates a workshop location, not the field.
- Option C (hand driven rivets) describes the manual driving method, which doesn't specifically match the implied method (often power assisted when heated for field work) or location focus.
- Option D (cold driven rivets) is incorrect as it directly contradicts the condition that the rivets are 'heated'.
Therefore, the rivets described are power driven field rivets.
Important Questions from Riveted Connections
As per IS 800, the minimum pitch of rivets in a row is recommended as:
The distance between the centre of two consecutive rivets measured along a row of rivets is known as ______.
If the working stress in bearing in power driven rivets is 300 N/mm2 and a double riveted double cover butt joint is used to connect plates of 12 mm thick, then the strength of rivet in bearing is
(Given: The nominal diameter of rivet = 22 mm)
As per IS:800-1984, the minimum pitch of rivets in a row is recommended as the diameter of the rivet times
When the maximum distance between centres of two adjacent rivets connecting the members subjected to either compression or tension exceed the maximum pitch, then the additional rivets which are not subjected to the calculated stress are used, and are known as
