1.
What is the most commonly used material for Gasket?
2.
Weld joint type of WNRF flange is?
3.
Stainless steel is known as acid proof steel, what is the grade?
4.
What is Cloud marking in isometric indicates?
6.
Non-return valve also known as?
7.
Which type of 90 degree Elbow is generally used in piping
8.
By using following fitting we use to make branch joint at right angle with respect to main line is?
9.
In the following given options which is not a permanent wielding connection?
10.
What is Maximum pressure rating of flange?
11.
Which of the following is used to block up the pipe on one end?
12.
How can flanges be classified based on face finish?
13.
Arithmetic Average Rough Height (AARH) is measurement for :
14.
What is minimum distance maintained between two weld joints?
15.
Which is not a flange classification according to flange facing?
16.
Which size onwards NB of pipe is equal to OD of pipe?
18.
Valve is used in a piping system for:
19.
We generally cut threads on GI pipes by which method?
20.
What is radius of short radius elbow?
21.
what is full form of IBR in piping?
