Department of Environment Office Assistant Recruitment Exam Question Solution 2023. Date of Exam: 28th April 2023. See the Question Solution of the Office Assistant Exam of the Department of Environment in the image below. Today on April 28, 2023, the office assistant examination of the Department of Environment was held in Dhaka city. The exam is held in mcq format. The total marks of the exam were 70 and the duration was 1 hour. Check the correct question solutions of the Department of Environment. Question Solution of Office Assistant Exam held under Department of Environment.