The Universe (Part-4)

Total Questions: 50

31. A plane starts flying from 30° northern latitude and 50° eastern longitude and lands at the opposite end of the earth, where will it land - [I.A.S. (Pre) 1994]

Correct Answer: (d) 30° Southern latitude, 130° Western longitude
Solution:At the opposite end of the earth, the plane will land at 30° southern latitude and 130° western longitude.

32. The country which has the longest north-south (latitudinal) extension of its territory is : [65th B.P.S.C. (Pre) 2019]

Correct Answer: (b) Chile
Solution:Chile has the longest north-south (latitudinal) extension of its territory between 17° South and 56° south. Chile is known for its unique shape, being a long, narrow country that stretches along the western coast of South America.

It's situated between the Pacific Ocean and the Andes Mountains, with its northern part bordering Peru and Bolivia, and its eastern border with Argentina. Chile extends approximately 2,700 miles (4,300 km) from north to south.

It has an average width of only about 110 miles (177 km), with a maximum of 217 miles (350 km) at the latitude of Antofagasta and a minimum of 9.6 miles (15.5 km) near Puerto Natales.

33. How many latitudes are there on the globe drawn at 1 degree interval? [69th B.P.S.C. (Pre), 2023]

Correct Answer: (c) 179
Solution:If parallels of latitude are drawn at an interval of one degree, there will be 89 parallels in the northern and the southern hemisphere each. The total number of parallels thus drawn, including the equator, will be 179.

34. The time at Cairo is 2 hours ahead of Greenwich. Hence, it is located at- [53rd to 55th B.P.S.C. (Pre) 2011]

Correct Answer: (b) 30° E longitude
Solution:Cairo (Egypt) is located at 30° 3'N latitudes and 31° 14' E longitude. Time of Cairo is 2 hours ahead of Greenwich. Therefore its position approximately falls near the 30° East longitude.

The Earth being spherical in shape rotates on its axis by 360° in 24 hours. Therefore, its movement for 1º of longitude takes the time of 4 minutes. So, it can be easily calculated that in 120 minutes (2 hours) angle for longitude will be 30°, Therefore, option (b) should be the correct answer.

35. When it is noon along 82° 30' E longitude along what degree of longitude it will be 6.30 a.m.? [I.A.S. (Pre) 1994]

Correct Answer: (c) At 0° East or West
Solution:When there is midday at 82°30′ E longitude then 6:30 in the morning means there is the difference of 5:30 hrs. in a time As in one hour, change in longitude is 15" therefore 82° 30° difference in 5.30 hours is 82° 30°-82° 300 latitude.

36. If the difference of longitudes for the two places is 90°, the time interval between these places will be - [M.P.P.C.S. (Pre) 1992]

Correct Answer: (b) 6 hr
Solution:Generally, 1° longitude is equal to a difference of 4 minutes 90 longitude means 90 × 4 = 360 minutes or 6 hours. Hence (b) is the correct answer.

The Earth rotates 360 degrees in 24 hours, meaning it rotates 15 degrees of longitude every hour (360 degrees / 24 hours = 15 degrees/hour). Therefore, for every 15 degrees of longitude difference, there's a 1-hour time difference. With a 90-degree longitude difference, the time difference is 90 degrees/15 degrees/hour = 6 hours.

37. When, there is mid-day in the Greenwich, local time of a place is 5 O'clock evening. At which of the following longitude (meridians) that place will be located - [U.P.P.C.S. (Pre) 2008]

Correct Answer: (a) 75° E
Solution:According to the question, when it is mid-day at Greenwich there is 5 O'clock somewhere in the evening. This means a time of that place is ahead of Greenwich time. Hence, that place is located in the east of Greenwich Difference of time is 5 hours.

Therefore, 1 hour 60 minutes 5 hours 560 = 300 minutes 4 minutes = 1 300 minutes => 300×1 4 750 As this place is located in the east of Greenwich line hence this place is located at 75° E.

38. Which one of the following longitudes along with the Prime Meridian forms a great circle on the globe. [U.P.P.C.S. (Pre) 2000]

Correct Answer: (d) 180°
Solution:The Prime Meridian is the Zero degree line of longitude that passes near London. The Prime Meridian was accepted as Zero degrees longitude at an International conference in 1884. It is also known as Greenwich meridian.

Just opposite to 0° longitude there is an Imaginary line located at about 180° E or Was International Date Line which forms great Circle with Prime meridian along the Globe

39. In the New Millennium, the first ray of the Sun wat seen in which of the following Meridians of India- [U.P.P.C.S. (Pre) 2001]

Correct Answer: (d) 93° 30°E
Solution:According to the Royal Greenwich-Laboratory's declaration the first ray of the sunrise, in India on the occasion of New Millenntum was seen upon the Katchal Island near Andaman Nicobar Island.

Katchal is situated nearly 1600 km away from the mainland of India and at 418 km distance from Port Blair Port and between the 7°56' North latitude and 934 24' East Meridian Therefore, the nearest option will be (d).

40. The basis of deciding the standard time of any place Is- [43 B.P.S.C. (Pre) 1999]

Correct Answer: (d) Prime Meridian
Solution: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 (0º longitude) passes through the following countries - (1) United Kingdom, (2) France, (3) Spain, (4) Algeria, (5) Mali, (6) Burkina-Faso, (7) Togo, (8) Ghana.