Common Interview questions on Quantity Surveying

 

1. What will you do if the site qty differ from drawing   quantity?

 This happens common in all sites. There will be executed qty not exactly match with drawing qty it will be   there some variance. In this case if executed qty is more than drawing quantity then we have to check with site engineers and Quantity surveyor for what reason executed quantity exceeded or lessen than drawing quantity. If exceeded then we have to claim extra quantity which are executed at site more than drawing quantity with proper clarification.

 

2. Wastage % for Reinforcement Steel?

 

As per IS 1786 

1. Up to 10 mm - (plus/minus: 7%)

2. 10 - 16 mm - (plus/minus 5%)

3. Over 16 mm - (plus/minus 3%)

 

3. Code for Structural steel and reinforced steel?

 

IS 800 for structural steel and for reinforced steel IS 1786

 

4. How you do the rate analysis?

 

In rate analysis, the cost of materials is estimated as a sum of the material's initial cost, transportation expenses, and taxes. The cost of labour is determined by the level of competence required, such as skilled, semi-skilled, and unskilled labour. Materials and labour prices differ from one location to another.

 

5. What is margin for OH & Profits in Rate analysis?

 

As per CPWD overheads and contractor's profit is 15%

 

 

 

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