This covers the practical application of longitude systems. It tests the concept of the International Date Line (and why it deviates to avoid landmasses), time zone calculations across hemispheres, and the administration of Indian Standard Time ($82^\circ 30'$ E).
In the New Millennium, the first ray of the Sun was seen in which of the following Meridians of India –
Correct Answer:
(D)
93° 30’E
According to the Royal Greenwich-Laboratory’s declaration the first ray of the sunrise, in India on the occasion of New Millennium was seen upon the Katchal Island near Andaman Nicobar Island. Katchal is situated nearly 1600 Km away from the mainland of India and at 300 Km distance from Port Blair and between the 8° North latitude and 93° – 94° East Meridian. Therefore, the nearest option will be (d).
Ques: 2
The basis of deciding the standard time of any place is–
Correct Answer:
(D)
Prime Meridian
Prime Meridian line is also known as International Meridian or Greenwich meridian. This line passes through England’s Royal Greenwich Observatory. Line situated at Zero degree longitude determines the International Standard Time. 180° longitude is called as International Date Line. Prime Meridian (0° longitude) passes through the following countries –
(1) United Kingdom, (2) France, (3) Spain, (4) Algeria, (5) Mali, (6) Burkina-Faso, (7) Togo, (8) Ghana, (9) Antarctica (South Pole).
Ques: 3
Time of which of the following places is equal to the time of GMT.
1. Accra 2. Dublin
3. Madrid 4. Lisbon
Use the code below to select the correct answer:
Code :
Correct Answer:
(C) 1, 2 and 4
Greenwich Mean Time (GMT) is calculated from Royal Greenwich Observatory (London) (at 0° meridian). Some other countries which are away from it also use time of GMT as given here-
Iceland Sierra Leone
Ireland Liberia
Portugal Ivory Coast
Canary Islands Burkina Faso
Mauritania Togo
Mali Ghana
Senegal Guinea
This is notable that Capital of Ghana, Ireland and Portugal respectively are Accra, Dublin and Lisbon use the time of GMT, Madrid which is the capital of Spain situated at 3° 43’ Meridian at the West and its time is not equivalent to Standard time (Time at Greenwich) or G.M.T.
Ques: 4
Which one of the following cities does not have the same clock time as that of the other three Cities at any given instant?
Correct Answer:
(D)
Addis Ababa (Ethiopia)
London (U.K.), Lisbon (Portugal) and Accra (Ghana) have similar time as all the three uses Greenwich time. Addis Ababa, capital of Ethiopia is located at 38° 74' E, whose time is 2 hours, 36 minutes, 26 seconds ahead of GMT.
Ques: 5
The standard time of the following countries is ahead of or behind Greenwich Mean Time depending on whether they are East or West of the longitude passing through Greenwich.
(1) Cuba (2) Greece
(3) Iraq (4) Costa Rica
(5) Japan
Which one of the following sequential orders gives the correct arrangement of the countries according to their standard time from ahead to behind GMT?
Correct Answer:
(A) 5, 3, 2, 1, 4
Greenwich line (0° longitude) passes through Britain. World standard time is measured from here. Time in Eastern hemisphere is ahead of Western hemisphere. The standard time of above mentioned countries are given below :
Japan = +9 hours
Iraq = + 3 hours
Greece = + 2 hours
Cuba = –5 hours
Costa Rica = –6 hours
Hence, the correct sequence of standard time ahead to behind GMT is 5, 3, 2, 1, 4 Japan, Iraq, Greece, Cuba and Costa Rica.
Ques: 6
International Date Line passes through –
Correct Answer:
(C) Pacific ocean
International date line is an imaginary line on the Earth which separates two consecutive days on the calendar. This line passes through 180° opposite to Greenwich (England) from the Pacific Ocean. This line turns when any land area falls in the way of this line.