Who Should Attend? For those who need the green CSCS card for operatives. Learning Outcomes The operative test ensures workers have the minimum level of health, safety, and environmental awareness before going on site. The test covers the following five core knowledge areas: ? Working environment ? Occupational health ? Safety ? High risk activities ? Specialist The pass mark for the operatives? test is 90%, to pass, you need to answer at least 45 questions out of 50 correctly. Official CITB revision books are available to buy or download from shop.citb.co.uk or you can download the official CITB: Op/Spec app to help you prepare for your upcoming test.