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WorksheetsConcrete Technology MCQ Quiz
Total questions: 20
Worksheet time: 10mins
Aggregates are classified based on size into which two categories?
Natural and Artificial Aggregates
Fine and Coarse Aggregates
Rounded and Angular Aggregates
Light and Heavyweight Aggregates
Which of the following is NOT a shape of aggregates?
Angular
Rounded
Irregular
Laminar
Fine aggregates generally pass through which sieve size?
4.75 mm
10 mm
2.36 mm
1.18 mm
What is the specific gravity range of fine aggregates?
1.5 to 2.0
2.4 to 2.9
3.0 to 3.5
2.0 to 2.4
Bulking of sand is primarily due to which factor?
Shape of particles
Presence of clay
Moisture content
Grading of sand
What is the permissible silt content in fine aggregates for concrete as per IS standards?
2%
5%
8%
10%
Fineness modulus is used to indicate which property of aggregates?
Strength
Grading
Specific gravity
Soundness
The bulk density of coarse aggregates depends on:
Shape of particles
Moisture content
Compaction level
All of the above
Which test is used to determine the crushing value of coarse aggregates?
Abrasion test
Impact test
Compression test
Crushing value test
What is the maximum permissible crushing value for aggregates in concrete?
20%
30%
45%
50%
The surface texture of coarse aggregates influences:
Workability of concrete
Strength of concrete
Bonding with cement paste
All of the above
What is the maximum water absorption limit for coarse aggregates?
1%
2%
3%
5%
Which property of aggregates is measured using the Los Angeles Abrasion Test?
Hardness
Strength
Abrasion resistance
Water absorption
For fine aggregates, Zone I as per IS 383:2016 indicates:
Coarse sand
Medium sand
Fine sand
Very fine sand
What is the range of specific gravity for coarse aggregates?
1.5 to 2.0
2.4 to 2.9
3.0 to 3.5
2.0 to 2.4
Which test is used to measure the toughness of coarse aggregates?
Crushing Value Test
Abrasion Test
Impact Test
Soundness Test
According to IS 456:2000, the pH of water used for concrete should not be less than:
4
5
6
7
Permissible limits for chloride content in water for RCC construction as per IS 456:2000 is:
500 ppm
1000 ppm
2000 ppm
2500 ppm
Impurities in mixing water can cause:
Reduced strength
Corrosion of reinforcement
Cracking in concrete
All of the above
What is the maximum permissible limit of sulphates in water as per IS 456:2000?
200 mg/L
400 mg/L
500 mg/L
1000 mg/L
