Step 1: Understanding QCBS.
The QCBS (Quality and Cost-Based Selection) method is widely used for consultancy and professional services. Unlike L1 (lowest bid) systems, QCBS balances both quality (technical score) and cost (financial score).
Step 2: Analyze each option.
- (A) Wrong → In QCBS, the technical bid is opened first, not the financial bid. Only technically qualified bidders proceed to financial evaluation. ✗
- (B) Correct → EMD is always submitted along with the bid documents before the opening of technical bids, to ensure seriousness of bidders. ✓
- (C) Wrong → In QCBS, the lowest financial bid is not always awarded. Instead, technical + financial scores are combined. ✗
- (D) Correct → A composite scoring system is used, typically in the ratio 70:30 or 80:20 (technical:financial). ✓
Step 3: Conclusion.
Thus, correct statements are (B) and (D).
Final Answer: \[ \boxed{\text{(B) and (D)}} \]
Following five activities are associated with construction contract management. Choose the option showing the correct progressive sequence of the activities.

A construction project consists of five activities. The immediate successor activity relationship and duration of each activity are mentioned.

Find the total duration of the project in weeks.
Following five activities are associated with construction contract management. Choose the option showing the correct progressive sequence of the activities.

