WELDER IMPORTANT NIMI BASED MCQ

Which method, surfacing can be done in any position or in any location?
A. Shielded metal arc welding
B. TIG welding
C. MIG welding
D. Submerged arc welding

Which metal surfacing method is ideal for thin layers, which can flow to corner and edges of the job?
A. TIG welding
B. MIG welding
C. Oxy-acetylene welding
D. Submerged arc welding

Which process is suitable and gives independence when there is a shortage of part?
A. It should temperature
B. It should be hard faced
C. It should be heat treated
D. It should be peened

What is the advantage of hard facing ?
A. To increase the labour cost
B. To increase idle time of plant
C. To decrease mechanical efficiency
D. To increase mechanical operating efficiency

Which electrodes are used to resist abrasion for hard facing in MMAW process?
A. Cast iron
B. Mild steel
C. Aluminium
D. Chromium and tungsten carbide

Which format the result of welding qualification is recorded?
A. Procedure Qualification Record (PQR)
B. Welder Procedure Specification (WPS)
C. Welding Procedure Qualification (WPQ)
D. Welder Performance Qualification (WPQ)

Why hard facing is done for worn out parts?
A. To get brittleness
B. To reduce mechanical operating efficiency
C. Instead of new replacement of costly parts
D. To increase labour cost

Which action on metal parts shall deform, fracture or peel off in pieces?
A. Abrasion
B. Erosion
C. Impact load
D. Friction

What action occur while grinding or scratching action of hard particle on metal part?
A. Erosion
B. Abrasion
C. Impact
D. Friction

How does a metal part looks like, if it gets oxidised?
A. Corroded
B. Rusted
C. Abrasion
D. Eroded