The preliminary test of the 37th Bangladesh Civil Service (BCS) examinations under the Public Service Commission (PSC) was held on Friday.The two-hour long test was held simultaneously in Dhaka, Chittagong, Rajshahi, Barisal, Khulna, Sylhet and Rangpur centres from 9:30am to 11:30am, the PSC sources said.A total of 2,43,476 examinees appeared at the examination.