Building Materials MCQs with answers Page - 4

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A

Admin • 828.03K Points
Coach

Q. Good quality stones must

  • (A) Be durable
  • (B) Be free from clay
  • (C) Resist action of acids
  • (D) All the above

A

Admin • 828.03K Points
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Q. For the manufacture of Portland cement, the proportions of raw materials used, are

  • (A) Lime 63% ; silica 22% ; other ingredients 15%
  • (B) Lime 22% ; silica 63% ; other ingredients 15%
  • (C) Silica 40% ; lime 40% ; other ingredients 20%
  • (D) Silica 70% ; lime 20% ; other ingredients 10%

A

Admin • 828.03K Points
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Q. For testing compressive strength of cement, the size of cube used is

  • (A) 50 mm
  • (B) 70.6 mm
  • (C) 100 mm
  • (D) 150 mm

A

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Q. For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of

  • (A) 1.2
  • (B) 1.3
  • (C) 1.4
  • (D) 1.6

A

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Q. For sanitary pipes and chemical stonewares,

  • (A) Salt glazing is used
  • (B) Lead glazing is used
  • (C) Opaque glazing is used
  • (D) None of these

A

Admin • 828.03K Points
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Q. First class timber has an average life of

  • (A) Less than one year
  • (B) 1 to 5 years
  • (C) 5 to 10 years
  • (D) More than 10 years

A

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Q. Excess of alumina in brick earth makes the brick

  • (A) Impermeable
  • (B) Brittle and weak
  • (C) To lose cohesion
  • (D) To crack and warp on drying

A

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Q. Early attainment of strength in rapid hardening cement is mainly due to

  • (A) Gypsum
  • (B) Finer grinding
  • (C) Tri-calcium silicate
  • (D) Tri-calcium aluminate

A

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Q. Consolidation of concrete should proceed ?

  • (A) immediately after mixing
  • (B) immediately after placing
  • (C) before placing
  • (D) before mixing

A

Admin • 828.03K Points
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Q. The thickness of laminate boards vary from ?

  • (A) 12 to 15 mm
  • (B) 25 to 30 mm
  • (C) 5 to 12 mm
  • (D) 12 to 25 mm

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