# Gammon India most asked civil interview Questions

1.**The least count of prismatic compass ?**

**Ans :- 15â€™**

**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 **