Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 6 (Q.No. 34)
34.
Which of the following types of pumps can be used for concreting ?
1. Piston operated.
2. Pneumatically operated.
3. Centrifugal operated, with straight blades.
4. Screw type.
1 and 3
1 and 2
1, 3 and 4
2 and 4
Answer: Option
Explanation:
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