1996: Which one of the following is not a lagoon?
(a) Ashtamudi lake
(b) Chilka lake
(c) Periyar lake
(d) Pulicat lake
1997: 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
1998: Sunda Strait separates
(a) Burma and Celebes
(b) Java and Sumatra
(c) Japan and Korea
(d) Sicily and Italy
1999: With reference to 'fly ash' produced by the power plants using coal as fuel, which of the following statements is/are correct?
1. Fly ash can be used in the production of bricks for building construction.
2. Fly ash can be used as a replacement for some of the Portland cement concrete.
3. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements.
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 only
(c) 1 and 3
(d) 3 only
2000: When the same note is played on a sitar and a flute, the sound produced can be distinguished from each other because of the difference in
(a) pitch, loudness and quality
(b) pitch and loudness
(c) quality only
(d) loudness only