Q1. Consider the following statements: 1. Under the Noise Pollution Rules, an area of not less than 100 metres around hospitals, educational institutions and courts may be declared a silence area or zone. 2. A loudspeaker or public address system requires written permission from the authority. 3. Under the schedule, the residential-area limit is 65 dB(A) Leq by day and 55 dB(A) Leq by night. 4. Night time under the Rules means the period between 6.00 a.m. and 10.00 p.m. Which of the statements given above are correct?
Explanation
Statements 1 and 2 are correct. Statement 3 is incorrect because the schedule gives 55/45 dB(A) Leq for residential areas; 65/55 is for commercial areas. Statement 4 is incorrect because night time is 10.00 p.m. to 6.00 a.m.; 6.00 a.m. to 10.00 p.m. is day time.