Prepare for your examinations with a set of multiple choice questions (MCQs) related to Repair and Maintenance for Welder Trade. The questions are likely designed to test a user’s knowledge or understanding of Mechanic Diesel concepts and may be useful for exam preparation or self-assessment. The website may be a helpful resource for individuals studying to become Welder or seeking to improve their understanding of Welder principles.

Repair and Maintenance

What is the purpose of metal build up on the worn out metal parts? To change its dimensions To reduce its shape and properties To make them good as new and obtain require properties To get brightness

What is the wear caused by liquids or gases striking metal parts at high speed? Corrosion Rust Friction Erosion

Which is the process to paint with particles by electrostatic charging? Metal Powder coating Electroplating Thermal spraying

What is the expanded form of PQR? Procedure qualification read Procedure qualification response Procedure quality record Procedure qualification record

What is the expanded form of WPS? Welding procedure speed Welding procedure separation Welding procedure specification Welding procedure standards

What is the main aim of welding procedure qualification, in a test to ascertain? Properties of weld withstand and designed conditions Performs of weld withstand designed conditions Perfect of weld withstand all condition Power of weld

What is the basis of welder performance qualification? Quality welder performance qualification Quick weld of quality Ability of welding Test weld of quality

Which type of tests are conducted by WPS, to test welder's performance? Destructive test Non-destructive test Semi-destructive test Non-testened

Which type of test is conducted as per WPS to evaluate the delivery of sound and quality welds? Destructive test Non-destructive test Semi-destructive test Without any test

What are the characteristics stated in the weld procedure qualification? Essential Non-essential Essential and Non-essential Standard

What is the code number given for pressure vessel manufacturing, exclusively for steel and steel alloy? P1 to P11 P21 to P30 P31 to P35 P43 to P47

What is the grouping P code number for welding covered under copper and copper based alloys? P1 to P11 P21 to P30 P31 to P35 P43 to P47

Which welding process is more desirable in filling up grooves on any surface? Shielded metal arc welding method Oxy-acetylene welding method TIG welding method Submerged arc welding method

Which one of the following method is not related to surfacing metal? Oxy-acetylene method Grinding method TIG welding method SAW method

What is the post-heated temperature of plain carbon steel? 100°C to 300°C 350°C to 400°C 400°C to 500°C 500°C to 550°C

What is the purpose of metal build up process, on a worn metal? To repair broken parts To build worn out product made new To make joints To reduce excess weld metal

What should be the electrode angle while building up worn out shaft? 30° - 40° 50° - 60° 70° - 80° 90° - 110°

Which method is suitable for surfacing the metal part and for high quality of weld and high deposition rate? Oxy-acetylene method Manual metal arc welding MIG welding Submerged arc welding

Which method is suitable for surfacing method to have smooth and thin layer? MIG welding Shielded metal arc welding Plasma welding Submerged arc welding

Which method, surfacing can be done in any position or in any location? Shielded metal arc welding Tig welding MIG welding Submerged arc welding

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

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

What is the advantage of hard facing? To increase the labour cost To increase idle time of plant To decrease mechanical efficiency To increase mechanical operating efficiency

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

Which is the operation to relieve residual stresses from the welding joint? Drilling Peening Pre heating Post heating

What is the typical advantage of hard facing for a worn out metal? To decrease the mechanical property To increase labour cost | श्रम To increase idle time To increase mechanical operating efficiency

Which is the result of qualification generally recorded in particular format? Procedure Qualification Record (PQR) Welder Procedure Specification (WPS) Welding Procedure Qualification (WPS) Welder Performance Qualification (WPQ)

Why hard facing is done for worn out parts? To get brittleness To reduce mechanical operating efficiency Instead of buying new repairing of old parts To increase labour cost

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

What defect occur while grinding or scratching action of hard particle on metal part? Erosion Abrasion Impact Friction

How does a metal part looks like, if it gets oxidised? Corroded Rusted Abrasion Eroded

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