Concrete Technology MCQs with answers Page - 19

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Q. Which cement is used for the construction of water-retaining structure like tanks, reservoirs, retaining walls, swimming pools, dams, bridges, piers etc?

  • (A) Waterproof Portland cement
  • (B) Colored Cement
  • (C) High Alumina Cement
  • (D) Low Heat Cement

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Q. ____ Cement is used for formwork that can be removed earlier and reused in other areas which save the cost of formwork.

  • (A) Rapid Hardening Cement
  • (B) Colored Cement
  • (C) High Alumina Cement
  • (D) Low Heat Cement

A

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Q. Which cement is mainly used for interior and exterior decorative works?

  • (A) Rapid Hardening Cement
  • (B) Colored Cement
  • (C) High Alumina Cement
  • (D) Low Heat Cement

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Q. The most useless aggregate is, whose surface texture is

  • (A) smooth
  • (B) glossy
  • (C) granular
  • (D) porous

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Q. High temperature

  • (A) increases
  • (B) decreases
  • (C) ---
  • (D) ---

A

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Q. A suitable admixture added at the time of preparing the concrete mix, makes the concrete.

  • (A) water proof
  • (B) acid proof
  • (C) highly strong
  • (D) all of these

A

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Q. A moist aggregate is one

  • (A) whose all the pores are filled with water and also having its surface wet
  • (B) whose all the pores are filled with water but having its surface dry
  • (C) which do not contain any moisture either in the pores or on the surface
  • (D) which may contain some moisture in the pores but having dry surface

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Q. The finer the sand, greater is the bulkage.

  • (A) Correct
  • (B) Incorrect
  • (C) ---
  • (D) ---

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Q. The fineness of cement is measured in terms of

  • (A) percentage weight retained on IS sieve number 9
  • (B) surface area in cm2 per gram of the cement
  • (C) either (a) or (b)
  • (D) none of these

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Q. For the manufacture of concrete of low density, the aggregate used is

  • (A) furnace clinker
  • (B) coke breeze
  • (C) saw dust
  • (D) all of these

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