Urgent help required in contract costing

There are two types of Plant used :- 

1. General Plant

2. Specific Plant for The particular contract.

If Question is Silent about the use of General Plant then we always presume that General Plant will not be used for the Contract & therefore the Depreciation on the General plant will be charged from the Costing Profit & Loss A/c. 

Thanks & Regards

CA. Arvind Singhal