CREATE TABLE table_18773 ("Serial & Branch" FLOAT, "Seaman" TEXT, "Mechanical" TEXT, "Secretariat" TEXT, "Supply" TEXT, "Electrical" TEXT, "Radio Electrical" TEXT, "Regulating" TEXT, "Medical" TEXT)

What are electricals where secretariat is po(w)?
SELECT "Electrical" FROM table_18773 WHERE "Secretariat" = 'PO(W)'
SELECT "Electrical" FROM "table_18773" WHERE "Secretariat" = 'PO(W)'