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    B. Concrete Having 25MP Compressive Strength

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    Biruk Abera
    The document contains a series of multiple choice questions related to concrete and construction. It covers topics such as: 1. Properties and types of concrete including compressive strength, disadvantages, and types used for foundations. 2. Calculations involving weights of reinforcement bars and volumes of concrete. 3. Acceptable properties of concrete materials like sand. 4. Uses and purposes of concrete compaction, vibration, and curing. 5. Construction terminology, methods, safety practices and precast components.

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    B. Concrete Having 25MP Compressive Strength

    Uploaded by

    Biruk Abera
    71 views4 pages
    The document contains a series of multiple choice questions related to concrete and construction. It covers topics such as: 1. Properties and types of concrete including compressive strength, disadvantages, and types used for foundations. 2. Calculations involving weights of reinforcement bars and volumes of concrete. 3. Acceptable properties of concrete materials like sand. 4. Uses and purposes of concrete compaction, vibration, and curing. 5. Construction terminology, methods, safety practices and precast components.

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    BBC (2)

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    The document contains a series of multiple choice questions related to concrete and construction. It covers topics such as: 1. Properties and types of concrete including compressive strength, disadvantages, and types used for foundations. 2. Calculations involving weights of reinforcement bars and volumes of concrete. 3. Acceptable properties of concrete materials like sand. 4. Uses and purposes of concrete compaction, vibration, and curing. 5. Construction terminology, methods, safety practices and precast components.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    71 views4 pages

    B. Concrete Having 25MP Compressive Strength

    Uploaded by

    Biruk Abera
    The document contains a series of multiple choice questions related to concrete and construction. It covers topics such as: 1. Properties and types of concrete including compressive strength, disadvantages, and types used for foundations. 2. Calculations involving weights of reinforcement bars and volumes of concrete. 3. Acceptable properties of concrete materials like sand. 4. Uses and purposes of concrete compaction, vibration, and curing. 5. Construction terminology, methods, safety practices and precast components.

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    © All Rights Reserved
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    BBC III

    1. C-25 concrete means -------------------------


    a. Concrete having 20MP compressive strength
    b. Concrete having 25MP compressive strength
    c. Concrete having 25MP tensile strength
    d. Concrete that have more cement
    2. Which of the following disadvantage of concrete
    a. Reusable impossible
    b. Durability
    c. Heavy load resistance
    d. High compressive strength
    3. Calculate the total weight of Ø12mm reinforcement bar having 60m length
    a. 53.28 Kg
    b. 48.12 Kg
    c. 63.46 Kg
    d. 48.52 Kg
    4. Calculate total weight of one pcs (12m) reinforcement bar Ø14mm ---------- Kg
    a. 1.209 kg
    b. 14 kg
    c. 14.51 kg
    d. 21.23 kg
    5. Which one is the acceptable concrete sand ?
    a. Retained no 4, 4.75 mm sieve
    b. Dust and fine
    c. Silt content above 6%
    d. Sand that has been washed
    6. One of the following are the uses of concrete vibration
    a. To increase the strength of concrete
    b. To increase material costs
    c. To increase water amount
    d. To increase labour coast
    7. One of the following is stair terminology
    a. Fight
    b. Step bar
    c. Starter bar
    d. Main bar
    8. --------- concrete is used for under footing foundation
    a. Lean concrete
    b. Reinforcement concrete
    c. Mass concrete
    d. Mortar
    9. One of the following are deep excavation
    a. Removal top soil
    b. Bulk excavation
    c. Footing excavation
    d. Trance excavation
    10. The ability to think about and success fully manage activity with available resource is ----
    a. Technical skill
    b. Management
    c. Organization
    d. Planning
    11. A footing type carrying single columns single columns in a foundation
    a. Isolated footing
    b. Strap footing
    c. Mat foundation
    d. Combined footing
    12. Which one of the f/f reuse construction ingredients
    a. Lime
    b. Sand
    c. Clay
    d. Pumice
    13. A test that used on filled test to check fresh concrete
    a. Slump test
    b. Colour test
    c. Strength test
    d. Compaction factor (The compacting factor test is designed primarily for use in the laboratory but it can also be used in the field. )
    14. Which one of the ff is measurement by area
    a. Reinforcement concrete
    b. Lean concrete
    c. Mat concrete
    d. Slab concrete
    15. The strength requirement of C-30 concrete at the 28 th day is -----
    a. 25N/mm2
    b. 30N/mm2
    c. 7N/mm2
    d. 20N/mm2
    16. Concrete mix design strength is determined on
    a. 15
    b. 02
    c. 21
    d. 28
    17. Which one of the ff best reinforcement bar is used for concrete
    a. Sheet bar
    b. Round bar
    c. Deformed bar
    d. Angle iron
    18. -------- maintained or improved individual and/or group performance given a variety of possible
    a. Team leader
    b. Office engineer
    c. Time keeper
    d. Site engineer
    19. Which one of the ff are the cases of vibration.
    a. Durable
    b. good appearance
    c. More strong
    d. Segregation ?
    20. Which one of the ff method used to measure consistency of concrete
    a. Soundness
    b. Cone
    c. Slump test
    d. Vacates apparatus
    21. One of the ff is the use of prepare bill of quantity
    a. To know finalized of the project
    b. To know designee of the project
    c. To know coast of the project
    d. To know location of the project
    22. Try square used to --------------
    a. Checking of horizontal alignment
    b. “ “ of vertical “ “
    c. “ “ of the angle
    d. “ “ of objects
    23. Which one of the ff should be used timber for form work
    a. Heavy in weight
    b. Affected by defects
    c. Free from knots
    d. Free from any oil
    24. Lean concrete are measured by
    a. M2
    b. M3
    c. Kg
    d. Meter liner
    25. During stencil finish ---
    a. The required design is obtained by chiseling
    b. The stencil is casted with concrete
    c. The coloring pigment is mixed with the concrete
    d. The always a good idea to make a sample
    26. Which one is C-25 batching ratio
    a. 1:2:2
    b. 1:2:4
    c. 1:2:3
    d. 1:2:5
    27. Assume the size of the column is 24cmX20cm 300cm (length , width and height ) respectively then find the length of
    one strip
    a. 68cm
    b. 70cm
    c. 78cm
    d. 75cm
    28. Which one of the ff vertical support of slab element
    a. Timber
    b. Props
    c. Brace
    d. Panel
    29. Which one of the ff identify high risk construction work
    a. Safe work method
    b. Work problem
    c. Personal protective
    d. Project handling
    30. Calculate how many kg of cement is required for 1M 3 of concreate according to the given information concreate mix
    ratio 1:2:3
    Shrinkage 1.3 wastage = 1.o5 , density of cement = 1400kg/M3
    a. 315kg
    b. 318.5 kg
    c. 423 kg
    d. 417 kg
    31. Which one of the ff a pre cast component used to distributed load
    a. Column
    b. Stair
    c. Beam
    d. Shear wall
    32. What type of test that is uses on site for workability of concrete
    a. Cube test
    b. Slamp test
    c. Hummer test
    d. Compressive strength
    33. How much volume of concrete is required for the length = 2m Width = 2m and depth 0.5m?
    a. 4m3
    b. 1m3
    c. 2.5 m3
    d. 2m3
    34. A type of finishing obtained by pressing stamping tools and other objects into slightly stiff concrete
    a. Stamp finish
    b. Stencil finish
    c. Texture finish
    d. Exposed aggregate finish

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