Which of the following is correct in the context of Factories Act, 1948?
1. Safety Committee consists of equal number of representatives of workers and management.
2. Every factory wherein more than 500 workers are ordinarily employed needs to maintain an ambulance room.
3. A worker is eligible for overtime if he work for more than 48 hours in any week.
4. A child who has completed his fourteenth year or an adolescent shall not be required or allowed to work in any factory unless he has a certificate of fitness is granted in the custody of the manager of the factory.