Workshop Practices - B.Tech 2nd Semester Examination, 2025

2025•Semester 3•Civil-CA•End Semester
Bihar Engineering University, Patna
B.Tech 2nd Semester Examination, 2025

Workshop Practices

Time: 03 HoursCode: 100206Full Marks: 70

Instructions:

  1. The marks are indicated in the right-hand margin.
  2. There are NINE questions in this paper.
  3. Attempt FIVE questions in all.
  4. Question No. 1 is compulsory.
Q.1 Choose the correct option / answer the following (Any seven question only):[14]

  1. The sheet metal gauge is used to measure

    1. Length
    2. Thickness of sheet
    3. Hardness
    4. Angle

  2. The metal commonly used in sheet metal work is

    1. Cast iron
    2. Tin plate
    3. Bronze
    4. Lead

  3. Soldering uses a Filler metal with melting temperature

    1. Equal to base metal
    2. Above 1000°C
    3. Below 450°C
    4. Without heating

  4. In arc welding, heat is produced by

    1. Gas flame
    2. Electric arc
    3. Chemical reaction
    4. Friction

  5. The material used for patterns is NOT

    1. Wood
    2. Aluminium
    3. Brass
    4. Glass

  6. The tool used for ramming sand in moulding is

    1. Trowel
    2. Slick
    3. Rammer
    4. Shovel

  7. Draw filing is used to

    1. Cut threads
    2. Remove bulk material
    3. Mark lines
    4. Obtain smooth surface finish

  8. A common carpentry joint is

    1. Lap joint
    2. Brazed joint
    3. Riveted joint
    4. Welded joint

  9. In smithy, heating of metal is done in

    1. Furnace
    2. Lathe
    3. Shaper
    4. Drill press

  10. The forging operation used to increase length and reduce cross-section is

    1. Upsetting
    2. Drawing (Drawing down)
    3. Punching
    4. Bending
Q.2 Solve both questions :[14]

  1. List any five sheet metal tools and describe their uses.

  2. Explain the process of scribing and bending in sheet metal work.

Q.3 Solve both questions :[14]

  1. Explain the difference between brazing and soldering.

  2. Describe mechanical joints with examples.

Q.4 Solve both questions :[14]

  1. Describe the different pattern materials used in foundries.

  2. Explain the function of riser, runner, and sprue in sand casting with a neat sketch.

Q.5 Solve both questions :[14]

  1. Name and explain the types of files used in fitting shop.

  2. Describe sawing and chipping operations.

Q.6 Solve both questions :[14]

  1. Explain any three defects in wood.

  2. Describe carpentry measuring and marking tools.

Q.7 Solve both questions :[14]

  1. Define seasoning of wood. What are the different methods?

  2. Differentiate between hot working and cold working processes.

Q.8 Solve both questions :[14]

  1. Write down the procedure of the product development: hexagonal box with cap in sheet metal shop.

  2. What safety precautions should be considered and followed in a workshop during various operations?

Q.9 Write short notes on of the following:[14]
    • Drawing
    • Upsetting
    • Bending
    • Green Sand