Gammon India most asked civil interview Questions

1.The least count of prismatic compass ?

Ans :- 15’

2. What is level line in surveying ?

Ans :- Line parallel to the mean spheroidal surface of earth

3. How Strength of concrete increases ?

Ans :- With increase in fineness of cement

4. What is the range of The fineness modulus of fine aggregate ?

Ans :- 2.0 to 3.5

5.The minimum cover in a slab should neither be less than the diameter of bar ?

Ans :- 15 mm

6. What is the Maximum distance between expansion joints in structures as per IS : 456 – 1978 ?

Ans:- 45 m

7.What is the limits of percentage of the longitudinal reinforcement in a column ?

Ans:- 0.8 % to 6 %

8.Which method of tunneling is used to construct tunnels in Rocks ?

Ans :-Drift method

9. In sheep foot rolling what is the basic action involved ?

Ans :- Kneading

10. What is the Minimum thickness of load bearing RCC wall ?

Ans :-100 mm