UPSC 2006 › Science & Technology

In which one among the following is the speed of sound maximum?

Consider the following chemicals:

1. Benzene
2. Carbon tetrachloride
3. Sodium carbonate
4. Trichloroethylene

Which of the above is/are used as dry-cleaning chemicals?

Consider the following statements:

1. Caffeine, a constituent of tea and coffee, is a diuretic.
2. Citric acid is used in soft drinks.
3. Ascorbic acid is essential for the formation of bones and teeth.
4. Citric acid is a good substitution for ascorbic acid in our nutrition.

Which of the statements given above are correct?

What is the name of the vessel that delivers the nutrient-rich blood from the stomach and small intestine to the liver?

Consider the following statements with reference to the human body:

1. The common bile duct releases its contents into the stomach.
2. The pancreatic duct releases its contents into the duodenum.

Which of the statements given above is/are correct?

Assertion (A): To orbit around the Sun, the planet Mars takes lesser time than the time taken by the Earth.

Reason (R): The diameter of the planet Mars is less than that of the Earth.

Assertion (A): Cellulose is used in making shatter-proof glass.

Reason (R): Polysaccharides are not soluble in water.

In which one of the following areas did the Indira Gandhi Center for Atomic Research make significant progress in the year 2005?

What is the approximate mean velocity with which the Earth moves round the Sun in its orbit?

Consider the following statements:

1. Meningococcal Meningitis is transmitted from person to person by mosquito bites.
2. Vomiting and neck pain are two of the symptoms of Meningococcal meningitis.

Which of the statements given above is/are correct?

Which one of the following pairs is not correctly matched? Recent Scientific Achievement : Country

Which one among the following is not a good source of nutritional calcium?

Which of the following pairs is/are correctly matched? Inventor : Invention

1. Christopher Cockerell : Hovercraft
2. David Bushnell : Submarine
3. J. C. Perrier : Steamship

Select the correct answer using the code given below:

Consider the following statements in respect of India's advanced satellite INSAT–4A :

1. INSAT–4A was launched in December, 2005 from New Mexico.
2. The European commercial launch service provider Arianespace was associated with the launch of INSAT–4A.
3. Tata-Sky—a digital cable service provider is associated with DTH television broadcasting services from INSAT-4A.

Which of the statements given above are correct?

What is the Universal Product Code (UPC) adopted for?

What does the term ‘Dolby B’, or ‘Dolby C’ printed on tape recorders and other sound systems refer to?

There are 8 equidistant points A, B, C, D, E, F, G and H in the clockwise direction on the periphery of a circle. In a time-interval t, a person reaches from A to C with uniform motion while another person reaches the point E from the point B during the same time-interval with uniform motion. Both the persons move in the same direction along the circumference of the circle and start at the same instant. How much time after the start will the two persons meet each other?

Who is the President of the Council of Scientific and Industrial Research?

Match List-I (Indian Scientist/Scholar) with List-II (Area of work) and select the correct answer using the code given below the lists:

1. Telecommunication
2. Physics
3. Economics
4. Solid State Chemistry and Material Science

List I A. C. N. R. Rao B. Jagdish Bhagwati C. G. N. Ramchandran D. Ashok

List II

Code:

Which are the materials generally employed as solder in soldering operation in electronics?

To which one of the following processes is the term CMYK related?

Consider the following statements:

1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
2. Almost 50% of human beings have Rh+ blood while the remaining have Rh- blood.

Which of the statements given above is/are correct?

Which one of the following is printed on a commonly used fluorescent tube light?