McqMate
Chapters
| 701. |
Maximum difference in the spacing of longitudes is : |
| A. | at poles |
| B. | at equator |
| C. | at tropics |
| D. | at arctic circle |
| Answer» B. at equator | |
| 702. |
Latitude of a point on the earth is measured by the distance in: [Asstt Grade 1990] |
| A. | kilometers from the poles |
| B. | kilometers from the equator |
| C. | angles from the poles |
| D. | angles from the equator |
| Answer» D. angles from the equator | |
| 703. |
Latitude and longitude both: |
| A. | pass through poles |
| B. | run parallel to the equator |
| C. | run parallel to each other |
| D. | run perpendicular to each other |
| Answer» D. run perpendicular to each other | |
| 704. |
Which of the following pairs is not correctly matched? [NDA 1993] |
| A. | 66° 33' N latitude - Arctic Circle |
| B. | 180°E or 180°W longitude- International Date Line |
| C. | 23° 20' N latitude - Tropic of Cancer |
| D. | 0° E or 0°W longitude – Equator |
| Answer» D. 0° E or 0°W longitude – Equator | |
| 705. |
The latitude of a place is the same as the: [CDS 1991] |
| A. | maximum altitude attained by the Sun at noon |
| B. | altitude of the celestial pole |
| C. | angle between the horizon and the equator |
| D. | zenith distance of the full moon when on the meridian |
| Answer» D. zenith distance of the full moon when on the meridian | |
| 706. |
Of the total volume of the earth, which layer forms the major part ? |
| A. | Sial |
| B. | Sima |
| C. | Mantle |
| D. | Core |
| Answer» D. Core | |
| 707. |
The equatorial circumference is greater than the polar circumference by approximately: |
| A. | 22 km |
| B. | 68 km |
| C. | 125 km |
| D. | 625 km |
| Answer» B. 68 km | |
| 708. |
The distance of the equator from either of the poles is : |
| A. | 500 km |
| B. | 5001 km |
| C. | 10,002 km |
| D. | 36,005 km |
| Answer» C. 10,002 km | |
| 709. |
On the 21st June, the day light is seen at the North Pole for: |
| A. | zero hrs. |
| B. | 12 hrs. |
| C. | 18 hrs. |
| D. | 24 hrs. |
| Answer» D. 24 hrs. | |
| 710. |
The amount of insolation received at a place on the surface of the earth depends on: |
| A. | its climate |
| B. | its latitude |
| C. | its longitude |
| D. | Both (a)and (b) |
| Answer» D. Both (a)and (b) | |
| 711. |
If a place is located at 20°N, 80°E in which of the following continents does it lie? [CDS 1989] |
| A. | Africa |
| B. | Asia |
| C. | Europe |
| D. | North America |
| Answer» B. Asia | |
| 712. |
Which of the following statements is correct ? 1. All meridians are of the same length 2. All latitudes are of the same length 3. The Prime Meridian is the longest meridian 4. The Equator is the longest latitude |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 3 and 4 |
| D. | 1 and 4 |
| Answer» D. 1 and 4 | |
| 713. |
The longest circle which can be drawn on the earth's surface passes through: [Asstt Grade 1993] |
| A. | Equator |
| B. | Tropic of Cancer |
| C. | Arctic Circle |
| D. | Tropic of Capricorn |
| Answer» A. Equator | |
| 714. |
Japan is called ‘land of the rising sun’ because: |
| A. | Sun rises there as soon as it sets |
| B. | Sun always remains in the eastern part of the sky throughout the day in Japan |
| C. | Japan being the Eastern most country in the World, it has the earliest sunrise |
| D. | The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan |
| Answer» C. Japan being the Eastern most country in the World, it has the earliest sunrise | |
| 715. |
Which of the following phenomenon gives an evidence for the spherical shape of the earth? |
| A. | Solar eclipse |
| B. | Revolution |
| C. | Lunar eclipse |
| D. | Rotation of Earth |
| Answer» B. Revolution | |
| 716. |
The speed of rotation of the earth is: [IFS 1991] |
| A. | 25 km/sec. |
| B. | 31 km/sec. |
| C. | 39.5 km/sec. |
| D. | 9.72 km/sec. |
| Answer» D. 9.72 km/sec. | |
| 717. |
The point in the orbit of a moon that is farthest from the Earth and at which the moon's velocity is at a minimum, the known as: |
| A. | Apehelion |
| B. | Apigee |
| C. | Umbra |
| D. | Perihelion |
| Answer» B. Apigee | |
| 718. |
Which of the following is not an effect produced by rotation of earth? |
| A. | It causes days and nights |
| B. | All heavenly bodies like sun, moon, planets appear to move from East to West |
| C. | Winds change their directions |
| D. | Poles have days and nights of 6 months duration |
| Answer» D. Poles have days and nights of 6 months duration | |
| 719. |
The revelations of a satellite photograph of the earth are as follows: 1. the Southern hemisphere bulges slightly more than the Northern hemisphere 2. it is slightly pear shaped ellipsoid of rotation 3. the polar axis of the earth is slightly shorter than the equatorial axis 4. the equatorial circumference is about 40,000km Which of the above statements are correct ? |
| A. | 1, 2 and 3 |
| B. | 1, 2, 3 and 4 |
| C. | 1, 2 and 4 |
| D. | 2, 3 and 4 |
| Answer» D. 2, 3 and 4 | |
| 720. |
Albedo is defined as: |
| A. | UV radiations sent out by the SUN |
| B. | a substance contained in the upper atmospheric layers of the earth, which is responsible for the reflection of/a part of solar radiations |
| C. | celestial bodies in earth's atmosphere which add to the greenhouse effect |
| D. | the amount of insolation reflected back to the space by the top of atmosphere, by clouds and ice-covered areas of the Earth's surface |
| Answer» D. the amount of insolation reflected back to the space by the top of atmosphere, by clouds and ice-covered areas of the Earth's surface | |
| 721. |
The Sun shines vertically on the equator: |
| A. | throughout the year |
| B. | for six months |
| C. | twice a year |
| D. | once a year |
| Answer» C. twice a year | |
| 722. |
The position of the sun is annually twice overhead at Singapore because of the: [Railways 1993] |
| A. | rotation of the earth |
| B. | revolution of the earth |
| C. | elliptical path of the earth's orbit |
| D. | parallelism of inclined axis of the earth |
| Answer» D. parallelism of inclined axis of the earth | |
| 723. |
What is 'Siderial Day'? |
| A. | The day on which the duration of sunshine is the maximum |
| B. | The day on which the duration of sunshine and darkness are equal |
| C. | The time during which the earth makes a complete rotation on its axis in respect of the fixed stars |
| D. | The day on which the sun reaches its maximum distance from the equator |
| Answer» C. The time during which the earth makes a complete rotation on its axis in respect of the fixed stars | |
| 724. |
The distance between the earth and the sun is smallest in the month of: |
| A. | January |
| B. | March |
| C. | June |
| D. | September |
| Answer» A. January | |
| 725. |
The earth revolves round the sun in its orbit by approximately: |
| A. | 1° per day |
| B. | 2° per day |
| C. | 3° per day |
| D. | 5° per day |
| Answer» A. 1° per day | |
| 726. |
There is a continual daylight or summer in the Arctic regions from: |
| A. | 22nd December to 21st March |
| B. | 21st March to 21st June |
| C. | 21st March to 23rd September |
| D. | 21st June to 22nd December |
| Answer» C. 21st March to 23rd September | |
| 727. |
Antipodes are: |
| A. | lines joining places having a time difference of 12 hours |
| B. | places diametrically opposite on earth's surface |
| C. | places located at a point where degree of latitude is equal to degree of longitude |
| D. | lines joining places having the same depths |
| Answer» B. places diametrically opposite on earth's surface | |
| 728. |
Which of the following pairs of metals are supposed to constitute the internal core of the earth? |
| A. | Chromium and Iron |
| B. | Magnesium and Lead |
| C. | Iron and Copper |
| D. | Nickel and Iron |
| Answer» D. Nickel and Iron | |
| 729. |
Consider a specific point on the surface of the earth (say Delhi). The temperature at a given time of day (say 12.00 Noon) will in general be higher in summer than in winter. This is because: [IAS 1993] |
| A. | the evaporation of water from atmosphere results in precipitation occurring in winter alone |
| B. | Sun-rays falling on the earth are inclined more towards the sun in winter |
| C. | the earth is closer to the sun in summer than in winter |
| D. | the axis of the earth is inclined more towards the sun in winter |
| Answer» B. Sun-rays falling on the earth are inclined more towards the sun in winter | |
| 730. |
Who among the following was first to measure the circumference of the Earth? [NDA 2008] |
| A. | Eratosthenes |
| B. | Aristotle |
| C. | Hecataeus |
| D. | Herodotus |
| Answer» A. Eratosthenes | |
| 731. |
Heat received by earth from the Sun is known as: |
| A. | insolation |
| B. | solar heat |
| C. | solar radiation |
| D. | thermal radiation |
| Answer» A. insolation | |
| 732. |
Lunar eclipse is caused when the: [Hotel Management 1991] |
| A. | moon comes between the sun and the earth |
| B. | earth comes between the sun and the moon |
| C. | sun comes between the earth and moon |
| D. | none of these |
| Answer» B. earth comes between the sun and the moon | |
| 733. |
Lunar eclipse does not occur every month because: |
| A. | the sun's orbit is not always in the same plane as the moon |
| B. | the moon revolves at a slower speed than the earth |
| C. | the moon's orbit is not all the time in the same plane as the earth |
| D. | none of these |
| Answer» C. the moon's orbit is not all the time in the same plane as the earth | |
| 734. |
Lunar eclipse occurs on : |
| A. | New moon |
| B. | Full moon |
| C. | Half moon |
| D. | Quarter moon |
| Answer» B. Full moon | |
| 735. |
The Solar eclipse achieves totality only in limited geographical regions because: [IAS 1993] |
| A. | the trajectories of the Earth around the Sun and the Moon around the Earth are not perfect circles |
| B. | the size of the shadow of the Moon on the Earth is small compared to the cross-section of the Earth |
| C. | sun rays can reach most of the peripheral regions of the shadow of the moon due to atmospheric refraction |
| D. | the Earth is not a smooth flat surface, but has elevations and depressions |
| Answer» B. the size of the shadow of the Moon on the Earth is small compared to the cross-section of the Earth | |
| 736. |
Solar eclipse occurs when: |
| A. | Earth comes between sun and moon |
| B. | Moon is at right angle to the earth |
| C. | Moon comes between sun and earth |
| D. | Sun comes between moon and earth |
| Answer» C. Moon comes between sun and earth | |
| 737. |
The position of a planet when it is nearest to the Sun, is called: |
| A. | perihelion |
| B. | apihelion |
| C. | apigee |
| D. | perigee |
| Answer» A. perihelion | |
| 738. |
The position of the earth in its orbit, when it is at its greatest distance from the Sun causing summer in the Northern hemisphere is : |
| A. | Perihelion |
| B. | Aplheuon |
| C. | Perigee |
| D. | Apogee |
| Answer» B. Aplheuon | |
| 739. |
The time of Cairo is 2 hours ahead of Greenwich time Cairo is situated at : |
| A. | 27° East |
| B. | 28° West |
| C. | 30° East |
| D. | 30° West |
| Answer» C. 30° East | |
| 740. |
When it is 8 P.M. in Tokyo, what is the time at Panama Canal which is located at 180° W of it? |
| A. | 4.00 P.M. |
| B. | 8.00 A.M. |
| C. | 12.00 A.M. |
| D. | 12.00 Noon |
| Answer» B. 8.00 A.M. | |
| 741. |
Through which one of the following groups of countries does the Equator pass? [IAS 2006] |
| A. | Brazil, Zambia and Malaysia |
| B. | Colombia, Kenya and Indonesia |
| C. | Brazil, Sudan and Malaysia |
| D. | Venezuela, Ethiopia and Indonesia |
| Answer» B. Colombia, Kenya and Indonesia | |
| 742. |
Which one of the following is the time required for the Earth to return to a given point in its orbit with reference to fixed star, called? [NDA 2008] |
| A. | Lunar year |
| B. | Solar year |
| C. | Tropical year |
| D. | Sideral year |
| Answer» D. Sideral year | |
| 743. |
In how many time zones has the world been divided into? |
| A. | 15 |
| B. | 24 |
| C. | 90 |
| D. | 180 |
| Answer» B. 24 | |
| 744. |
Why does Russia have many local time differences? |
| A. | Because it keeps trade relations with many countries of the world |
| B. | Because it experiences a wide range of climatic conditions |
| C. | Because of its long east-west stretches |
| D. | Because it is divided into a number of states on political grounds |
| Answer» C. Because of its long east-west stretches | |
| 745. |
Which one of the following elements is most abundant in the earth's crust? [NDA 2005] |
| A. | Oxygen |
| B. | Sulphur |
| C. | Silicon |
| D. | Carbon |
| Answer» A. Oxygen | |
| 746. |
Through which one of the following countries the Tropic of Cancer does not pass through? [CDS 2005] |
| A. | Bangladesh |
| B. | China |
| C. | Myanmar |
| D. | Nepal |
| Answer» D. Nepal | |
| 747. |
All the watches of a country are set according to : |
| A. | local time |
| B. | standard time of the country |
| C. | greenwich mean time |
| D. | time of sunrise and sunset |
| Answer» B. standard time of the country | |
| 748. |
If it is 4 P.M. on Monday at 150°W, what will be the time at 150°E ? |
| A. | 4 a.m. on Tuesday |
| B. | 4 p.m. on Tuesday |
| C. | 4 p.m. on Sunday |
| D. | 12 Noon on Tuesday |
| Answer» D. 12 Noon on Tuesday | |
| 749. |
When it is 12.00 noon at Delhi (77° 10'E), people at another place on earth take their 6 o'clock morning tea. The longitude of that place is: [CDS 2001] |
| A. | 17°30' E |
| B. | 12°50' W |
| C. | 172°30' E |
| D. | 17°E |
| Answer» B. 12°50' W | |
| 750. |
When it is 12:00 noon in India, the time in San Francisco (USA) would be closed to : [CDS 2002] |
| A. | 11 : 30 p.m. |
| B. | 11 : 30 p.m. of previous day |
| C. | 8 : 30 p.m. |
| D. | 8 : 30 p. m. of previous day |
| Answer» D. 8 : 30 p. m. of previous day | |
| 751. |
Consider the following statements: While it is 6.30 AM (Sunday) in London, it is around 1. 2.30 AM (Sunday) in Honolulu (Hawaii) 2. 8.30 PM (Saturday) in Honolulu (Hawaii) 3. 3.30 PM (Sunday) in Tokyo 4. 1.30 AM (Sunday) in Tokyo Which of these statements is/are correct? [Asstt Comm PF 2002] |
| A. | 4 only |
| B. | 2 and 3 |
| C. | 1 and 4 |
| D. | 2 and 4 |
| Answer» B. 2 and 3 | |
| 752. |
Beirut time is two hours ahead and Lima time is five hours behind GMT. The longitudes of Beirut and Lima are respectively: [CPO SI 2002] |
| A. | 75° West and 30° East |
| B. | 70° East and 35° West |
| C. | 30° East and 75° West |
| D. | 35° West and 70° East |
| Answer» C. 30° East and 75° West | |
| 753. |
When the clock strikes 12:00 noon at Greenwich, it strikes 5:30 p.m. at place X on the same day. What is the meridian of longitude of place X ? [NDA 2003] |
| A. | 97°30' E |
| B. | 97°30' W |
| C. | 82°30' E |
| D. | 82°30' W |
| Answer» C. 82°30' E | |
| 754. |
When it is nine o'clock in London, it will be the same time in : |
| A. | Ghana |
| B. | Babon |
| C. | Latvia |
| D. | Norway |
| Answer» A. Ghana | |
| 755. |
The location of a place A is at 60° E longitude and 30° S latitude while the location of B is at 60° E longitude and 45° N latitude. Time at B will be : |
| A. | half an hour behind A |
| B. | half an hour ahead of A |
| C. | half an hour ahead or behind that of A |
| D. | the same as that of A |
| Answer» D. the same as that of A | |
| 756. |
The International Dateline deflects to a side to avoid: |
| A. | Society islands |
| B. | Hawaii |
| C. | Aleutian Islands |
| D. | All the above |
| Answer» C. Aleutian Islands | |
| 757. |
Which of the following is/are true of world time zones? 1. The world is divided into thirty time zones 2. All time zones of the world are described in term of the number of hours difference between the standard meridian of that zone and the Greenwich Meridian 3. All countries have more than one time zone 4. The time for all places east of Greenwich is designated slow, and time for all places left of Greenwich is designated fast |
| A. | I, II, III and IV |
| B. | II and IV |
| C. | I, III and IV |
| D. | II only |
| Answer» D. II only | |
| 758. |
A person sets off from Alaska on a Tuesday and reaches New Zealand the next day which will be : |
| A. | Tuesday |
| B. | Wednesday |
| C. | Thursday |
| D. | Friday |
| Answer» C. Thursday | |
| 759. |
The local time at A is 4 p.m, when Greenwich Mean Time is 2 p.m. This indicates: 1. A is east of Greenwich 2. the longitude of A is 30° |
| A. | Only I |
| B. | Only II |
| C. | Neither I nor II |
| D. | Both I and II |
| Answer» D. Both I and II | |
| 760. |
If the earth's direction of rotation is reversed, what would be the IST when it is noon at the International Date Line? [IAS 1997] |
| A. | 06.30 hrs |
| B. | 05.30 hrs |
| C. | 18.30 hrs |
| D. | 17.30 hrs |
| Answer» C. 18.30 hrs | |
| 761. |
Sea tides show variations because of: |
| A. | variations in gravitational pull of the moon |
| B. | variations in gravitational pull of the sun |
| C. | distorted spherical shape of the earth |
| D. | different phases of the moon |
| Answer» D. different phases of the moon | |
| 762. |
One day in Mumbai a tide occurs at 8.00 A.M. The next day it will occur at : |
| A. | 8.13 A.M. |
| B. | 8.26 A.M. |
| C. | 8.52 A.M. |
| D. | 8.56 A.M. |
| Answer» B. 8.26 A.M. | |
| 763. |
Which one of the following is the correct sequence of the given Continents in the decreasing order of their percentage of Earth's land? [IAS 2005] |
| A. | North America – Africa – South America – Europe |
| B. | Africa – North America – South America – Europe |
| C. | North America – Africa – Europe – South America |
| D. | Africa – North America – Europe – South America |
| Answer» B. Africa – North America – South America – Europe | |
| 764. |
Which one of the following has geographical position of 0 degree latitude and 0 degree longitude? [CDS 2008] |
| A. | In the South Atlantic Ocean |
| B. | In the Mediterranean Sea |
| C. | In Ghana, a West African-country |
| D. | At Greenwich Observatory in England |
| Answer» A. In the South Atlantic Ocean | |
| 765. |
The Earth is an oblate spheroid and not a perfect sphere. This is because [CDS 2010] 1. the Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator. 2. the Equator experiences greater gravitational pull from the Sun. 3. the intensity of sunlight received at the Equator is greater than that at the Poles. |
| A. | 1 only |
| B. | 1 and 2 |
| C. | 3 only |
| D. | 1, 2 and 3 |
| Answer» B. 1 and 2 | |
| 766. |
The antipodal position of a place located at 35° south and 80° west is [Asstt Commdt 2010] |
| A. | 55° north and 80° east |
| B. | 35° north and 100° east |
| C. | 100°north and 80° east |
| D. | 55° south and 10° east |
| Answer» B. 35° north and 100° east | |
| 767. |
If news is broadcast from London at 10:30 AM, at what time it will be heard at Baghdad (45°E)? [CDS 2012] |
| A. | 7:30 AM |
| B. | 9:00 AM |
| C. | 1:30 PM |
| D. | 12:00 Noon |
| Answer» C. 1:30 PM | |
| 768. |
The distance between two consecutive longitudes (91° E and 92° E) at the Poles is [CDS 2012] |
| A. | 0 km |
| B. | 18 km |
| C. | 25 km |
| D. | 111 km |
| Answer» A. 0 km | |
| 769. |
Consider the following statements:
|
| A. | 1, 2 and 3 |
| B. | 1 and 3 only |
| C. | 1, 2 and 4 |
| D. | 2 and 5 only |
| Answer» C. 1, 2 and 4 | |
| 770. |
How many kilometres are represented by 1° of latitude? [CDS 2011] |
| A. | 321 km |
| B. | 211 km |
| C. | 111 km |
| D. | 91 km |
| Answer» C. 111 km | |
| 771. |
The approximate circumference of the Earth is [CPO SI 2011] |
| A. | 13,000 km |
| B. | 20,000 km |
| C. | 25,000 km |
| D. | 30,000 km |
| Answer» D. 30,000 km | |
| 772. |
Consider the following statements: 1. The tropical year is shorter than the sidereal year. 2. The solar day is longer than the sidereal day. Which of the statements given above is/are correct? [NDA 2010] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» C. Both 1 and 2 | |
| 773. |
The seasonal contrasts are maximum in: |
| A. | low latitudes |
| B. | mid-latitudes |
| C. | sub tropics |
| D. | high latitudes |
| Answer» B. mid-latitudes | |
| 774. |
Which of the following is the best definition of 'Tides' ? [SBI PO 1991] |
| A. | A powerful movement of the ocean which proceed constantly in a definite direction |
| B. | A great circulatory movement of sea water caused by difference in density of sea water |
| C. | A periodic rise and fall of sea water caused by the gravitational force of moon and sun on earth |
| D. | A wind and pressure system having a low pressure in centre and circular wind motion |
| Answer» C. A periodic rise and fall of sea water caused by the gravitational force of moon and sun on earth | |
| 775. |
Which of the following statements regarding the earth's axis are true? 1. It makes an angle of with the plane of ecliptic 2. It maintains a flexible orientation with respect to the stars 3. It is the most important fact connected with Earth-Sun relationship |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | 1, 2 and 3 |
| Answer» C. 1 and 3 | |
| 776. |
The heavier silicates named 'Sima’ or silica + magnesium are most abundant in the: |
| A. | crust |
| B. | core |
| C. | mantle |
| D. | ocean floors |
| Answer» A. crust | |
| 777. |
Insolation heats up the land masses more quickly than the water bodies because: |
| A. | water is liquid |
| B. | landmasses are solid |
| C. | water needs more energy to get warm |
| D. | rocks are bad conductors of heat |
| Answer» C. water needs more energy to get warm | |
| 778. |
The earth's annual circuit round the sun covers a distance of: |
| A. | 1,096 million kms |
| B. | 1,036 million kms |
| C. | 966 million kms |
| D. | 896 million kms |
| Answer» C. 966 million kms | |
| 779. |
It is six months long day in the northern polar region and six months long night in the southern polar region because: [Railways 1993] |
| A. | earth is revolving around the sun |
| B. | earth is inclined towards its orbital plane |
| C. | earth is rotating |
| D. | none of these |
| Answer» B. earth is inclined towards its orbital plane | |
| 780. |
The surface of Earth that lies between the Tropic of Cancer and the Tropic of Capricorn is called: |
| A. | North Temperate Zone |
| B. | Frigid Zone |
| C. | South Temperate Zone |
| D. | Torrid Zone |
| Answer» D. Torrid Zone | |
| 781. |
Which of the following are true regarding equinoxes? [CDS 1993] 1. They occur on March 21 st and September 23rd 2. They depict equal days and equal. nights on March 21 st and September 23rd on all places of the earth 3. All places on the earth have equal temperature during equinoxes |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» A. 1 and 2 only | |
| 782. |
Choose the incorrect statement; [IFS 1993] |
| A. | All meridians are of the same length |
| B. | The axis of the earth is inclined at an angle of to the horizontal |
| C. | The Sun's rays are vertical at all places on the days of the equinoxes |
| D. | The summer solstice for the Southern Hemisphere is in December |
| Answer» C. The Sun's rays are vertical at all places on the days of the equinoxes | |
| 783. |
The largest amount of reflection of the solar radiant energy which is reflected back into space before reaching the earth's surface is due to: |
| A. | clouds |
| B. | water-bodies |
| C. | snow and ice covered areas of the earth |
| D. | all the above reflect nearly the same amount |
| Answer» A. clouds | |
| 784. |
What percentage of insolation is received by the earth's surface? |
| A. | 47% |
| B. | 51% |
| C. | 66% |
| D. | 87% |
| Answer» A. 47% | |
| 785. |
The incoming short-wave solar radiation is balanced by an equal amount of long-wave radiation from earth going back to space. This is known as: |
| A. | earth radiation |
| B. | wave balance of earth |
| C. | heat balance of earth |
| D. | radiation exchange |
| Answer» C. heat balance of earth | |
| 786. |
The latitude of a place expresses its angular position relative to the plane of |
| A. | axis of the Earth |
| B. | equator |
| C. | North pole |
| D. | South pole |
| Answer» B. equator | |
| 787. |
At 12 noon of December 21, you observe that you cast no shadow as you stand in bright sunlight. So you must be, somewhere near: |
| A. | the Arctic Circle |
| B. | the Tropic of Cancer |
| C. | the Tropic of Capricorn |
| D. | the South Pole |
| Answer» C. the Tropic of Capricorn | |
| 788. |
The Gutenberg discontinuity is between: |
| A. | the crust and the mantle |
| B. | the upper and lower mantles |
| C. | the outer core and the lower mantle |
| D. | the inner and outer cores |
| Answer» C. the outer core and the lower mantle | |
| 789. |
If the earth's axis had not been inclined: 1. temperature distribution would have been uniform 2. days and nights would not have occurred 3. seasons would not· have occurred 4. poles would not have continuous day |
| A. | I, III and IV |
| B. | II and IV |
| C. | III and IV |
| D. | II, III and IV |
| Answer» C. III and IV | |
| 790. |
The Tropic of Cancer does NOT pass through: [NDA 2003] |
| A. | Egypt |
| B. | Mexico |
| C. | Oman |
| D. | Yemen |
| Answer» D. Yemen | |
| 791. |
Which one of the following minerals occurs abundantly in the Earth's crust? [CDS 2003] |
| A. | Bauxite |
| B. | Silica |
| C. | Manganese |
| D. | Iron |
| Answer» B. Silica | |
| 792. |
The axis of rotation of earth is tilted by 23.5° to the plane of revolution around the sun. The latitude of Mumbai is less than 23.5° whereas the latitude of Delhi is more than 23.5°. Which one of the following statements in this regard is correct? [CDS 2000] |
| A. | The sun can come overhead at both these places |
| B. | The sun will never come overhead at either of these places |
| C. | At Mumbai the sun can come overhead, but it will never do so at Delhi |
| D. | At Delhi the sun can come overhead but it will never do so at Mumbai |
| Answer» C. At Mumbai the sun can come overhead, but it will never do so at Delhi | |
| 793. |
Consider the following statements: 1. Prime Meridian passes through Greenwich and is at 0° Longitude. 2. International Date Line, on the map appears as a straight line along 180° Longitude. 3. While crossing International Date Line from east to west, one gains a day. 4. Tropic of Cancer lies at Latitude. Which of these statements are correct? [Asstt Comm PF 2002] |
| A. | 1, 2, 3 and 4 |
| B. | 1, 2 and 4 |
| C. | 1 and 3 |
| D. | 1 and 4 |
| Answer» D. 1 and 4 | |
| 794. |
Why are winters more severe in Southern Hemisphere than in the Northern Hemisphere? |
| A. | Earth is tilted towards the Sun in the Northern Hemisphere |
| B. | Northern Hemisphere receives more sunlight |
| C. | Because of more iceberg activity in Southern Hemisphere |
| D. | Southern Hemisphere is less inhabited |
| Answer» C. Because of more iceberg activity in Southern Hemisphere | |
| 795. |
The tide at its maximum height is known as: |
| A. | Equinox |
| B. | Neap tide |
| C. | Spring tide |
| D. | Tsunami |
| Answer» C. Spring tide | |
| 796. |
‘Green House Effect’ means: |
| A. | pollution in houses in tropical regions |
| B. | trapping of solar energy due to atmospheric oxygen |
| C. | trapping of solar energy due to atmospheric carbon dioxide |
| D. | cultivation in green houses so as to check pollution |
| Answer» C. trapping of solar energy due to atmospheric carbon dioxide | |
| 797. |
The International Date Line passes through: [LlC, AAO 1994] |
| A. | Bering strait |
| B. | Gibraltar strait |
| C. | Florida strait |
| D. | Malacca strait |
| Answer» A. Bering strait | |
| 798. |
The International Date Line makes slight deviation from 180° meridian so that it : [I. Tax & Central Excise 1990] |
| A. | divides the land masses under the same administration |
| B. | does not divide the Bering strait |
| C. | does not divide a group of islands under the same administration |
| D. | divides the Pacific Ocean into two equal halves |
| Answer» C. does not divide a group of islands under the same administration | |
| 799. |
When a ship crosses Date line from west to east: [Railways 1991] |
| A. | it loses one day |
| B. | it gains one day |
| C. | it loses half a day |
| D. | it gains half a day |
| Answer» B. it gains one day | |
| 800. |
Which of the following statements regarding the International Date line are correct? (1) It is a longitude of 180° (2) It is determined by 180° longitude but is not a straight line (3) It is a Greenwich meridian helping in fixing time and date (4) It solves the problem of time and date among the World's nations |
| A. | 1 and 4 |
| B. | 3 and 4 |
| C. | 2 and 3 |
| D. | 2 and 4 |
| Answer» D. 2 and 4 | |
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