CPCL Workman Answer Key 2020 Released soon. The Chennai Petroleum Corporation Limited (CPCL) has released the Notification for 55 Vacancies for Work Man Posts. The CPCL has to conduct the Exam was held on 5th January 2020. This Answer Key & Question Booklet will be available till Midnight of 11.01.2020. Candidates can download the CPCL Workman Answer Key 2020 in below Link.