Addition gain of 10 db is used for testing.
(i) ‘D’ marked rails on single lines.
(ii) ‘D’ marked rails on double lines.
(iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.*
(iv) None of above.
(i) ‘D’ marked rails on single lines.
(ii) ‘D’ marked rails on double lines.
(iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.*
(iv) None of above.