The electrical accessories used in wiring installation are classified according to their uses. In what classification of accessories, the ceiling rose will belong ?

25) In what classification of accessories, the distribution board will belong ?

26) As per BIS 1293:1988, the voltage rating is

27) The safe maximum current that can pass continuously without overheated is called as

28) The socket is rated as _____ and having only two terminal holes without earth connection.