3206: Disguised unemployment generally means
(a) large number of people remain unemployed
(b) alternative employment is not available
(c) marginal productivity of labour is zero
(d) productivity of workers is low
3207: Who among the following wrote the book Babuvivah?
(a) Rabindranath Tagore
(b) Raja Rammohan Roy
(c) Ishwar Chandra Vidyasagar
(d) Pandita Rambai
3208: Malaria fever is caused
(a) Immediately after mosquito bite
(b) Upon disintegration and bursting of red blood cells
(c) When the malaria causing germs reach the liver
(d) Upon release of toxins into blood
3209: In which respect have the Centre-State relations been specifically termed as "municipal relations"?
(a) Centre's control of the State in the legislative sphere
(b) Centre's control of the State in financial matters
(c) Centre's control of the State in the administrative sector
(d) Centre's control of the State in the planning process
3210: What is the principle by which a cooling system (Radiator) in a motor car works ?
(a) Convection
(b) Conduction only
(c) Both conduction and radiation
(d) Radiation only