Q: 100 (CDS-I/2010)

Which one of the following is the solitary aircraft carrier of the Indian Navy that turns 50 in 2009 and has the distinction of being the oldest floating airfield in service ?
question_subject: 
General Knowledge
question_year: 
2010
question_exam: 
CDS-I
stats: 
0,392,272,392,56,32,184