Mixing and Transporting of Concrete

Q. A concrete mixer is specified by :

1. The volume of the mixing drum
2. Horse power of prime over
3. Volume mixed concrete discharged after mixing of each batch
4. mixer drum speed

Q. Relevant IS code for specification of batch type concrete mixers is :

1. IS : 2502
2. IS : 2506
3. IS : 1786
4. IS : 1791

Q. Transportation of concrete-mix by pumps is a very convenient method, particularly in case of:

1. housing complex
2. cement concrete pavement
3. low-rise buildings
4. tunnel-lining

Q. Statement (I): R.M.C is preferably used in construction of large projects.
Statement (II): R.M.C is adoptable to achieve any desired strength of concrete, with simultaneous quality control.

1. Both statements - I and statements - II are individually true and statement - II is the correct explanation of statement - I
2. Both statements - I and statements - II are individually true and statement - II is the NOT correct explanation of statement - I
3. Statement - I is true but statement - II is false
4. Statement - I is false but statement - II is true