Workshop Technology MCQ

Test your knowledge with important Workshop Technology MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Workshop Technology MCQs at Bissoy

• When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by
  ক

  Washing it with water

  খ

  Rubbing on wood

  গ

  Washing it with dilute acid

  ঘ

  Using file card
• The most preferred process for casting gas turbine blades is
  ক

  Die casting

  খ

  Shell moulding

  গ

  Investment moulding

  ঘ

  Sand casting
• The chisel used for cutting key ways is
  ক

  Flat chisel

  খ

  Cape chisel

  গ

  Round nose chisel

  ঘ

  Diamond pointed chisel
• In a ________, both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.
  ক

  Simple die

  খ

  Progressive die

  গ

  Combination die

  ঘ

  Compound die
• In a ________, two or more operations are performed simultaneously at the single stroke of the ram.
  ক

  Simple die

  খ

  Progressive die

  গ

  Combination die

  ঘ

  Compound die
• Projection welding is a
  ক

  Continuous spot welding process

  খ

  Multi-spot welding process

  গ

  Arc welding process

  ঘ

  Process used for joining round bars
• The draft or taper allowance on casting is generally
  ক

  1 to 2 mm/m

  খ

  2 to 5 mm/m

  গ

  5 to 10 mm/m

  ঘ

  10 to 15 mm/m
• Shift is a casting defect which
  ক

  Results in a mismatching of the top and bottom parts of a casting

  খ

  Results in general enlargement of a casting

  গ

  Occurs near the ingates as rough lumps on the surface of a casting

  ঘ

  Occurs as sand patches on the upper surface of a casting
• Sand wash is a casting defect which
  ক

  Results in a mismatching of the top and bottom parts of a casting

  খ

  Results in general enlargement of the casting

  গ

  Occurs near the ingates as rough lumps on the surface of a casting

  ঘ

  Occurs as sand patches on the upper surface of a casting
• The dowels are
  ক

  Wooden nails

  খ

  Box nails

  গ

  Wire nails

  ঘ

  None of these
• When the dimension is expressed as $$20_{ - 0.025}^{ + 0.035},$$  then the basic size is
  ক

  20 mm

  খ

  20.035 mm

  গ

  20.025 mm

  ঘ

  19.975 mm
• The advantage of thermit welding is that
  ক

  All parts of the weld section are molten at the same time

  খ

  Weld cools almost uniformly

  গ

  Results in a minimum problem with internal residual stresses

  ঘ

  All of the above
• The shrinkage allowance for cast iron pattern is
  ক

  10 mm/m

  খ

  16 mm/m

  গ

  20 mm/m

  ঘ

  26 mm/m
• Swab is used for
  ক

  Smoothing and cleaning out depressions in the mould

  খ

  Cleaning the moulding sand

  গ

  Moistening the sand around the edge before removing pattern

  ঘ

  Reinforcement of sand in the top part of the moulding box
• When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as
  ক

  Die casting method

  খ

  Slush casting method

  গ

  Permanent mould casting method

  ঘ

  Centrifugal casting method
• A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as
  ক

  Shift

  খ

  Sand wash

  গ

  Swell

  ঘ

  Scab
• A casting defect which results in general enlargement of a casting is known as
  ক

  Shift

  খ

  Sand wash

  গ

  Swell

  ঘ

  Scab
• The centrifugal casting method, is used for casting articles of
  ক

  Symmetrical shape about vertical axis

  খ

  Symmetrical shape about horizontal axis

  গ

  Irregular shape

  ঘ

  Nonferrous metal only
• The metal extrusion process is generally used for producing
  ক

  Uniform solid sections

  খ

  Uniform hollow sections

  গ

  Uniform solid and hollow sections

  ঘ

  Varying solid and hollow sections
• Seam welding is a
  ক

  Continuous spot welding process

  খ

  Multi-spot welding process

  গ

  Arc welding process

  ঘ

  Process used for joining round bars
• The adhesiveness is the property of sand due to which
  ক

  It evolves a great amount of steam and other gases

  খ

  The sand grains stick together

  গ

  It clings to the sides of a moulding box

  ঘ

  None of these
• In arc welding, the temperature of heat produced by the electric arc is of the order of
  ক

  3000°C to 4000°C

  খ

  4000°C to 5000°C

  গ

  5000°C to 6000°C

  ঘ

  6000°C to 7000°C
• Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?
  ক

  Drawing

  খ

  Extrusion

  গ

  Rolling

  ঘ

  Extrusion and rolling
• Cast iron and steel pipes are produced by
  ক

  Slush casting

  খ

  Investment casting

  গ

  True centrifugal casting

  ঘ

  Die casting
• An oxidising process used for aluminium and magnesium articles is called
  ক

  Galvanizing

  খ

  Anodizing

  গ

  Parkerising

  ঘ

  Sherardizing
• When a pattern is made in three parts, the top part, is known as a
  ক

  Drag

  খ

  Cheek

  গ

  Cope

  ঘ

  None of these
• Rotary swaging
  ক

  Is extensively used for making bolts and rivets

  খ

  Is used for reducing the diameters of round bars and a tube by rotating dies which open and close rapidly on the work

  গ

  Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface

  ঘ

  Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
• In submerged arc welding, an arc is produced between a
  ক

  Carbon electrode and the work

  খ

  Metal electrode and the work

  গ

  Bare metal electrode and the work

  ঘ

  Two tungsten electrodes and the work
• Aluminium is the best material for making patterns because it is
  ক

  Light in weight

  খ

  Easy to work

  গ

  Corrosion resistant

  ঘ

  All of these
• For gas welding, the pressure desired at the welding torch for oxygen is
  ক

  7 to 103 kN/m²

  খ

  70 to 280 kN/m²

  গ

  280 to 560 kN/m²

  ঘ

  560 to 840 kN/m²