1.
What is the most commonly used material for Gasket?
3.
What is Maximum pressure rating of flange?
4.
Stainless steel is known as acid proof steel, what is the grade?
6.
Which size onwards NB of pipe is equal to OD of pipe?
7.
Non-return valve also known as?
8.
We generally cut threads on GI pipes by which method?
9.
What is Cloud marking in isometric indicates?
10.
Arithmetic Average Rough Height (AARH) is measurement for :
11.
what is full form of IBR in piping?
12.
Which is not a flange classification according to flange facing?
13.
Which type of 90 degree Elbow is generally used in piping
14.
By using following fitting we use to make branch joint at right angle with respect to main line is?
15.
In the following given options which is not a permanent wielding connection?
16.
Weld joint type of WNRF flange is?
17.
Which of the following is used to block up the pipe on one end?
18.
What is minimum distance maintained between two weld joints?
19.
How can flanges be classified based on face finish?
20.
What is radius of short radius elbow?
21.
Valve is used in a piping system for:
