506: Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are
(a) acute diarrhoea, cancer and gout
(b) malaria, acute diarrhoea and schistosomiasis
(c) onchocerciasis, leukaemia and arthritis
(d) rheumatism, malaria and AIDS
507: Transchart is the
(a) chartering wing of the Ministry of Surface Transport
(b) container service established by Indian Railways
(c) training institute of maritime studies and research
(d) passenger insurance scheme of Indian Railways
508: P, Q, R and S are four men. P is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R. P is richer than Q but not than S. The four men can be ordered (descending) in respect of age and richness, respectively, as
(A) PQRS, RPSQ
(B) PRQS, RSQP
(C) PRSQ, RSPQ
(D) PRQS, RSPQ
509: In a family there are husband wife, two sons and two daughters. All the ladies were invited to a dinner. Both sons went out to play. Husband did not return from office. Who was at home ?
(a) Only wife was at home
(b) All ladies were at home
(c) Only sons were at home
(d) No body was at home
510: Which of the following is/are among the Fundamental Duties of citizens laid down in the Indian Constitution?
1. To preserve the rich heritage of our composite culture
2. To protect the weaker sections from social injustice
3. To develop the scientific temper and spirit of inquiry
4. To strive towards excellence in all spheres of individual and collective activity
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 2 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4