I’ve been told that I have to pass a test to get onto a plumbing course, will this be difficult?

This is usually a general test to gauge your ability in maths and problem-solving. The reason this is set is because some people enrolled on plumbing courses find it difficult to get to grips with the calculations in the course work. Plumbing courses have a high drop out rate because people underestimate how difficult the course is and colleges want to ensure potential students have the ability to succeed.