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  • Question

  • The cracks which extend from bark towards the sap wood in the cross section of a tree, are called


  • Options
  • A. radial shakes
  • B. star shakes
  • C. heart shakes
  • D. cup shakes.

  • Correct Answer
  • star shakes 

    • Building Materials problems

    Search Results

    • 1. The steel used in R.C.C. work is

    • Options
    • A. stainless steel
    • B. mild steel
    • C. high carbon steel
    • D. wrought iron.
      • Discuss
    • 2. Plastics are compounds of carbon with element

    • Options
    • A. hydrogen
    • B. nitrogen
    • C. oxygen
    • D. All of these.
      • Discuss
    • 3. The thermosetting plastic

    • Options
    • A. becomes rigid when moulded at suitable pressure and temperature
    • B. at 127°C to 177°C permanently set and further application of heat does not soften it
    • C. charrs at 343°C
    • D. All the above.
      • Discuss
    • 4. Pick up the rock which is not a sedimentary rock from the following:

    • Options
    • A. gravel
    • B. sand stone
    • C. gypsum
    • D. dolerite
    • E. lignite.
      • Discuss
    • 5. In arches, stratified stones are placed so that their planes are

    • Options
    • A. parallel
    • B. perpendicular
    • C. radial
    • D. none of these.
      • Discuss
    • 6. The steel used for rails under heavy traffic and on sharp curves, is

    • Options
    • A. Nickel steel
    • B. Chrome steel
    • C. Magnese steel
    • D. Vanadium steel.
      • Discuss
    • 7. Forge pig may be converted to wrought iron by

    • Options
    • A. rolling
    • B. pudding
    • C. shingling
    • D. refining.
      • Discuss
    • 8. Seasoning of timber is essential to remove

    • Options
    • A. knots from timber
    • B. sap from timber
    • C. twisted fibre from timber
    • D. roughness of timber.
      • Discuss
    • 9. The material generally not used as extender in paints, is

    • Options
    • A. powdered silica
    • B. gypsum
    • C. talc
    • D. zinc white.
      • Discuss
    • 10. The sequence of refractory materials according to increasing melting points is :

    • Options
    • A. Dolomite, Magnesia, Bauxite, Chromite
    • B. Bauxite, Chromite, Dolomite, Magnesia
    • C. Magnesia, Bauxite, Dolomite, Chromite.
      • Discuss

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