One, multiple choice
1. The tool for expanding or tightening the assembly is ( D ).
A. clamping tool
b. pressing tool
c. tension tool
D. brace
2. The pressure marked on the boiler nameplate is the boiler ( A ).
A. Design working pressure
B. Maximum working pressure
C. Average work pressure
D. Minimum working pressure
3. The frequency of the commonly used power frequency alternating current is ( B ) Hz.
A.40
B.50
C.60
D.100
4. ( A ) The weld filler metal of the groove is the least.
AI type
BV shape
CX shape
DU type
5. The technical conditions for inspection of conventional welding equipment are not involved ( D ).
A. Electrical properties
B. Equipment control system
C. Wire feed mechanism and accessories inspection
D. Welding performance
6. Since the quenched structure will be produced in the heat-affected zone after welding, the post-weld high temperature ( D ) treatment is often used to improve the structure and improve the overall performance.
A. Quenching
B. Normalizing
C. Annealing
D. Tempering
7. Welders should ( D ), but this does not belong to the code of conduct for welders.
A. Pay attention to safety in production
B. Be strict with yourself and bear hardships and stand hard work
C. earnestly learn professional knowledge
D. Participate in social welfare work
8. The clearance range of brazed joints is generally ( B ).
A.0.2～0.25mm
B.0.05～0.2mm
9. Among the following grades ( B ) is aluminum-magnesium alloy.
A.L1
B.LF6
C.LD2
D.LY3
10. The kerosene test is often used for the tightness inspection of the butt welds of ( A ) vessels.
A. not under pressure
B. Low pressure
C. Medium pressure
D. high pressure
2. Judgment questions
1. When using the pressure reducer, it should not be stained with grease and other sundries, and various pressure reducers cannot be mixed.
right
2. Coloring inspection can find internal defects of weldments.
wrong
3. When the fillet welds of the box beam are welded, the fillet welds on both sides of the same web should be welded symmetrically in the same direction.
right
4. The test weld of the inclined Y-shaped groove butt crack test shall determine the number of welds according to the plate thickness.
wrong
5. After the plasma cutting is completed, the cutting gas should be turned off at the end.
wrong
6. Containers requiring heat treatment after welding should be welded and repaired after heat treatment.
wrong
7. When using submerged arc welding, it is necessary to remove the metal parts on the walking channel of the welding machine to prevent short circuit.
right
8. The risk factor of underwater arc welding is electric shock, which is much more dangerous than land.
right
9. The bending samples of welded joints can be divided into positive bending, back bending and side bending according to the position of the tensile surface of the bending sample in the weld.
right
10. In case of festivals, holidays or other special circumstances, the management of hot work should be upgraded.
right
The above are the practice questions and answers for the advanced welder exam in Jiangxi Province in 2022. Xiaobian and Youtibao will continue to update the advanced welder exam simulation questions and answers. If you need it, don't miss it. I also hope that all candidates can achieve good results in the advanced welder exam.