UPSC 1998 › Science & Technology

The damage to the Spektr Module of the Russian Space Station Mir was due to

Which of the following statements are true about the Indian-born woman astronaut Kalpana Chawla? I. She was born in Karnal. II. She flew on board the shuttle flight STS-87. III. She was trained at the Kennedy Space Centre. IV. She did a space-walk to retrieve the Spartan Satellite.

Select the correct answer using the codes given below:

The satellites

of which one of the following countries have helped in the preparation of a detailed and complete map of Antarctica?

Match List I with List II

and select the correct answer using the codes given below the lists:

List I I. Potassium bromide II. Potassium nitrate III. Potassium sulphate IV. Mono-potassium tartrate

List II A. Fertiliser B. Photography C. Bakery D. Gunpowder

Codes:

Which one of the following elements is essential for the construction of nuclear reactors?

Consider the following statements regarding asteroids: I. Asteroids are rocky debris of varying sizes orbiting the Sun. II. Most of the asteroids are small but some have diameter as large as 1000 km. III. The orbit of asteroids lies between the orbits of Jupiter and Saturn. Of these statements:

Consider the following statements: Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. Its function is to I. Act as a reducing agent. II. Remove silica associated with the iron ore. III. Function as fuel, to supply heat. IV. Act as an oxidizing agent. Of these statements:

Which one of the following metals does not form amalgams?

A fuse is used in main electric supply as a safety device.

Which one of the following statements about the fuse is correct?

Consumption of fish is considered to be healthy when compared to flesh of other animals because fish contains

Match List I with List II

and select the correct answer using the codes given below the lists:

List I (Disease) I. Malaria II. Poliomyelitis III. Tuberculosis IV. Ringworm

List II (Organism) A. Fungi B. Bacteria C. Virus D. Protozoan

Codes:

Haemophilia is a genetic disorder which leads to

Consider the following statements about acetylene: I. It is used in welding industry. II. It is raw material for preparing plastics. III. It is easily obtained by mixing silicon carbide and water. Of these statements:

A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s². What will be its velocity after 3 seconds?

Match List I with List II

and select the correct answer by using the codes given below the lists:

List I (Special Characteristic) I. Farthest planet from the Sun II. Largest planet of the solar system III. Planet second from the Sun in the solar system IV. Planet nearest to the Sun

List II (Name of Planet) A) Mercury

B) Venus

C) Jupiter

D) Pluto

E) Saturn

Which one of the following types of micro-organisms is most widely used in industries?

Match the names of outstanding Indian scientists given in List I with the area of their specialised work given in List II and select the correct answer using the codes given below the lists:

List I I. Dr. Raja Ramanna II. Dr. M. S. Swaminathan III. Prof. U. R. Rao IV. Prof. Meghnad Saha

List II A) Plant Chemistry B) Nuclear Physics E) Agricultural sciences

C) Thermodynamics and astrophysics

Match List I with List II

and select the correct answer using the codes given below the lists:

List I I. Fruit II. Seed III. Wood IV. Starch

List II A) Ovule

B) Leaf

C) Stem

D) Ovary

Match List I with List II

and select the correct answer using the codes given below the lists:

List I I. Theory of Mutation II. Theory of Evolution III. One-gene-one-enzyme hypothesis IV. Operon concept

List II A) Beadle and Tatum

B) Jacob and Monod

C) Darwin

D) De Vries

Which one of the following statements regarding starch and cellulose is NOT correct?

Ergotism is due to consumption of

The complete conversion of glucose in the presence of oxygen into carbon dioxide and water with release of energy is called

The major chemical compound found in human kidney stones is

One Astronomical Unit is the average distance between

Match List I with List II

and select the correct answer using the codes given below the lists:

List I I. Blue vitriol II. Epsom salt III. Baking soda IV. Caustic soda

List II A) Sodium bicarbonate

B) Sodium hydroxide

C) Magnesium sulphate

Assertion (A): Formic acid is a stronger acid than acetic acid.

Reason (R): Formic acid is an organic acid.

Assertion (A): The temperature of a metal wire rises when an electric current is passed through it.

Reason (R): Collision of metal atoms with each other releases heat energy.

Assertion (A): Phenyl is used as a household germicide.

Reason (R): Phenyl is a phenol derivative and phenol is an effective germicide.

Assertion (A): Sodium metal is stored under kerosene.

Reason (R): Metallic sodium melts when exposed to air.