191: Biological Oxygen Demand (BOD) is a standard criterion for
(a) Measuring oxygen levels in blood
(b) Computing oxygen levels in forest ecosystems
(c) Pollution assay in aquatic ecosystems
(d) Assessing oxygen levels in high altitude regions
192: The Chairmen of public sector banks are selected by the
(a) Banks Board Bureau
(b) Reserve Bank of India
(c) Union Ministry of Finance
(d) Management of concerned bank
193: The Institute of Ombudsman was first established in:
(a) Norway
(b) Sweden
(c) Finland
(d) Denmark
194: Recently Uttar Pradesh and Madhya Pradesh governments signed a Memorandum of Understanding for the linking of two rivers as a link project. Which are these two rivers?
(a) Betwa and Chambal
(b) Betwa and Ken
(c) Chambal and Son
(d) Ken and Narmada
195: Two persons A and B get the same salary. Their basic pays are different. Their allowances are 65% and 80% of their basic pays respectively. What is the ratio of their basic pays?
(a) 7 : 5
(b) 17 : 15
(c) 11 : 10
(d) 12 : 11