MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit III Set the Oxygen Acetylene Gas Cutting Plant
81)
The oxygen purity for cutting should be at least:
A.
B.
C.
D.
82)
The cutting tip or nozzle is usually made of:
A.
B.
C.
D.
83)
The correct torch movement for straight-line cutting is:
A.
B.
C.
D.
84)
Oxygen hose color code is:
A.
B.
C.
D.
85)
Acetylene hose color code is:
A.
B.
C.
D.
86)
In gas cutting, piercing is the process of:
A.
B.
C.
D.
87)
A common cause of poor cut quality is:
A.
B.
C.
D.
88)
Preheat holes are arranged around:
A.
B.
C.
D.
89)
Cutting speed increases with:
A.
B.
C.
D.
90)
Gouging with oxy-acetylene is used to:
A.
B.
C.
D.
91)
In multi-torch cutting machines, torches are arranged:
A.
B.
C.
D.
92)
In gas cutting, dross is:
A.
B.
C.
D.
93)
The typical oxygen consumption for cutting 25 mm steel is about:
A.
B.
C.
D.
94)
The preheat flame type for cutting mild steel is:
A.
B.
C.
D.
95)
Which metal cannot be cut by oxy-acetylene?
A.
B.
C.
D.
96)
Gas cutting of stainless steel is difficult because:
A.
B.
C.
D.