1. To prevent segregation, the concrete should not be thrown from a height of more than _____.
[A] 1.5 m
[B] 1 m
[C] 2.5 m
[D] 0.5 m
Answer: Option A
2. The slump recommended for mass concrete is about _____.
[A] 50 mm to 100 mm
[B] 100 mm to 125 mm
[C] 25 mm to 50 mm
[D] 125 mm to 150 mm
Answer: Option C
3. Separation of water or slurry from fresh concrete is known as ____.
[A] Creeping
[B] Segregation
[C] Bleeding
[D] None
Answer: Option C
4. _____ cement is suitable for use in massive concrete structures such as large dams.
[A] Low Heat Cement
[B] Ordinary Portland Cement
[C] Rapid Hardening Cement
[D] Sulphate Resisting Cement
Answer: Option A
5. Test carried out to determine tensile strength of concrete is called _____.
[A] Vee-Bee test
[B] triaxial loading test
[C] compression test
[D] Split test or Brazilian test
Answer: Option D