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UPSC Civil Service Exam Questions - Engineering

Q1:

Consider the following statements :
A concrete mixer is specified by the :
1. volume of the mixing drum.
2. horse power of the prime mover.
3. volume of mixed concrete discharged.
4. mixer drum speed.
5. feeding arrangement.
Of these statements :

A 1, 2 and 5 are correct

B 1, 3 and 4 are correct

C 3 and 5 are correct

D 2 and 4 are correct

ANS:A - 1, 2 and 5 are correct

The correct option is C
The volume of the mixing drum;

According to IS 1791-1985 concrete mixing are specified by:

(a) By the nominal volume of concrete that can be mixed in a batch.
(b) By the feeding arrangement to concrete in the drum i.e. Tilting (T). Non tilting (NT) & Reversing (R)