1931: Which one of the following airports in India is the first to be owned by a public limited company?
(a) Cochin airport
(b) Bangalore airport
(c) Hyderabad airport
(d) Dabolin Airport, Goa
1932: Octopus is
(a) an arthropod
(b) an echinoderm
(c) a heimchordate
(d) a mollusc
1933: Endoscopy, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of
(a) total internal reflection
(b) interference
(c) diffraction
(d) polarisation
1934: The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1 ?
(a) 20
(b) 27
(c) 16
(d) 12
1935: Chlorophyll contains:
(a) Beryllium
(b) Calcium
(c) Magnesium
(d) Strontium