Aerospace Materials and Processes MCQ

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

• Pure zinc in metallic form was discovered by a __________ chemist.
  ক

  Persian

  খ

  Indian

  গ

  American

  ঘ

  German
• Zinc is ___________ in colour.
  ক

  black

  খ

  yellow

  গ

  bluish-silver

  ঘ

  red
• The melting point of zinc is __________
  ক

  1495°C

  খ

  1445°C

  গ

  787.1°C

  ঘ

  787.1°F
• Zinc is an element that is being used fairly recently.
  ক

  True

  খ

  False
• Which of the following are ores of zinc?
  ক

  Cobaltite

  খ

  Erythrite

  গ

  Marmatite

  ঘ

  Litharge
• Zinc is alloyed with which of the following elements frequently?
  ক

  Vanadium

  খ

  Copper

  গ

  Helium

  ঘ

  Rutherfordium
• Zinc is a non-lustrous element.
  ক

  True

  খ

  False
• Zinc in the form of ores can be found in which of the following places?
  ক

  Antarctica

  খ

  Canada

  গ

  Canada and Russia

  ঘ

  Russia and Antarctica
• The density of Zinc is ____________ at room temperature.
  ক

  2.7 gram per cubic centimetre

  খ

  6.52 gram per cubic centimetre

  গ

  7.14 gram per cubic centimetre

  ঘ

  0.44 gram per cubic centimetre
• The atomic number of zinc is ___________
  ক

  25

  খ

  13

  গ

  104

  ঘ

  30
• Inconel welds are cleaned after fabrication by submerging in a _________ cold nitric acid solution.
  ক

  20%

  খ

  50%

  গ

  99%

  ঘ

  12%
• K Monel is accessible as ___________
  ক

  Forgings

  খ

  Z-shape

  গ

  U-shape

  ঘ

  T-shape
• ____________ is formed on the surface of Inconel if heated above 700°F in an oxidizing atmosphere.
  ক

  Carbon

  খ

  Chromium oxide

  গ

  Hydrogen peroxide

  ঘ

  Nitric oxide
• K Monel sheet can be welded satisfactorily by ___________
  ক

  oxyacetylene

  খ

  cold-rolling

  গ

  anomaxicity

  ঘ

  cold-rolling and Anomaxicity
• ____________ can be used as a lubricant when Monel is subjected to boring, drilling, etc.
  ক

  Carbon oil

  খ

  Sulphurized oil

  গ

  Vegetable oil

  ঘ

  Deep oil
• Inconel springs can be used at temperatures between ___________
  ক

  600-700°C

  খ

  100-200°F

  গ

  50-150°F

  ঘ

  600-700°F
• Soft soldering of Monel should not be done when the material is subjected to ___________
  ক

  low stress

  খ

  ideal properties

  গ

  vibration

  ঘ

  vibration and ideal properties
• ____________ alloy/alloys are corrosion resistant in atmosphere and saltwater.
  ক

  Inconel

  খ

  Monel

  গ

  Steel

  ঘ

  Inconel and K Monel
• Nickel can be used in the transportation industry.
  ক

  True

  খ

  False
• ___________ is a relatively non-complicated way of joining (Monel) where strength is not necessary.
  ক

  Welding

  খ

  Carbon-arc

  গ

  Soft soldering

  ঘ

  Oxyacetylene
• Inconel weighs ___________ corrosion-resistant steel.
  ক

  less than

  খ

  more than

  গ

  equal to

  ঘ

  double of
• Nickel is suitable for manufacturing in mobile phones and power generators.
  ক

  True

  খ

  False
• ___________ metal is used near compasses.
  ক

  Monel

  খ

  Inconel

  গ

  K Monel

  ঘ

  Iron
• Monel is used in making ___________
  ক

  oil coolers

  খ

  rivets

  গ

  oil coolers and rivets

  ঘ

  rubber tires
• Inconel is accessible commercially in which of the following shapes?
  ক

  Tube

  খ

  Wires

  গ

  Z-shapes

  ঘ

  Tubes and wires
• Inconel is softened by heating up to ___________
  ক

  1800°C

  খ

  1800°F

  গ

  180°C

  ঘ

  180°F
• Heating of alloys that have high nickel content should be done in __________ atmospheres.
  ক

  sulphur free

  খ

  low temperatures

  গ

  sulphur rich

  ঘ

  sulphur infused
• ___________ is not a method of welding of Monel.
  ক

  Oxyacetylene

  খ

  Cold-stiffening

  গ

  Carbon-arc welding

  ঘ

  Metallic-arc welding
• ___________ alleviates internal stress.
  ক

  Annealing

  খ

  Conducting

  গ

  Bombarding

  ঘ

  Inundating
• Monel can be welded ___________
  ক

  rarely

  খ

  easily

  গ

  with difficulty

  ঘ

  timelessly