The Joint Admissions and Matriculation Board has commissioned a 1000-seating capacity mega Computer Based Test Centre in Kaduna.The centre said to be the largest in West Africa hThe Joint Admissions and Matriculation Board has commissioned a 1000-seating capacity mega Computer Based Test Centre in Kaduna.The centre said to be the largest in West Africa has four units each of 250 seaters with the capacity to conduct the Unified Tertiary Matriculation Examination for 4,000 candidates per day.as four units each of 250 seaters with the capacity to conduct the Unified Tertiary Matriculation Examination for 4,000 candidates per day.