Science & Technology – UPSC Prelims PYQs

What is the broad area in which the Nobel Prize winners for the year 2006 in Physiology or Medicine worked to get the prize?

Consider the following statements:

1. In the year 2006, India successfully tested a full-fledged cryogenic stage in rocketry.
2. After USA, Russia and China, India is the only country to have acquired the capability for use of cryogenic stage in rocketry.

Which of the statements given above is/are correct?

Which one of the following is another name of RDX?

Which one of the following non-metals is NOT a poor conductor of electricity?

Robert Webster is known for his work associated with which one of the following?

Consider the following statements :

1. If magenta and yellow coloured circles intersect, the intersected area will have red colour.
2. If cyan and magenta coloured circles intersect, the intersected area will have blue colour.

Which of the statements given above is/are correct?

Consider the following statements:

1. A flute of smaller length gives waves of lower frequency.
2. Sound travels in rocks in the form of longitudinal elastic waves only.

Which of the statements given above is/are correct?

Four wires of the same material and of the dimensions given below are stretched by equal loads separately. Which one of them will be elongated the maximum?

Which one of the following parts of the pitcher plant becomes modified into a pitcher?

Assertion (A): A jet aircraft moving at Mach number equal to 1 travels faster at an altitude of 15 km than while moving at Mach number equal to 1 near sea level.

Reason (R): The velocity of sound depends on the temperature of the surrounding medium.

In the human body, to which structure is the appendix attached?

Which one of the following types of glass can cut off ultraviolet rays?

In the human body

which one of the following hormones regulates blood calcium and phosphate?

How do most insects respire?

Which one of the following parts of the human brain is the regulating centre for swallowing and vomiting?

Production

of which one of the following is a function of the liver?

Which of the following is not a digestive enzyme in the human system?

Which of the following light types of light are strongly absorbed by plants:

In human beings, normally

in which one of the following parts does the sperm fertilize the ovum?

Three identical vessels A, B and C are filled with water, mercury and kerosene respectively up to an equal height. The three vessels are provided with identical taps at the bottom of the vessels. If the three taps are opened simultaneously, then which vessel is emptied first?

Which one of the following is called Philosopher’s wool?

Which one of the following does not contain silver?

Which of the following types is used by computed tomography employed for visualization of the internal structure of human body?

Which on the following is the correct sequence in order of decreasing length of the three structural parts given below of small intestine in the human body?

Consider the following statements:

1. In November 2006, DRDO successfully conducted the interception test using Prithvi-II missile.
2. Prithvi-II is a surface-to-surface missile and can be deployed to guard the metros against air attack.

Which of the statements given above is/are correct?

NASA’s Deep Impact space mission was employed to take detailed pictures of which comet nucleus?

Match List-I with List-II and select the correct answer using the code given below the lists:

1. Co-founder of Microsoft
2. Space walker
3. Administrator of NASA
4. Nobel Prize winner, 2006 in Physics

List-I (Person) A. John C. Mather B. Michael Griffin C. Paul G. Allen D. Piers Sellers

List-II (Known as)

Codes:

Which one of the following pairs is not correctly matched?

Match List-I with List-II and select the correct answer using the code given below the lists:

1. Wind Energy
2. Oil
3. Telephone, Internet
4. Micro-processor

List-I (Company) A. Chevron B. AT&T C. AMD D. Enercon GmbH

List-II (Major Area/Product)

Codes:

Which one of the following pairs is not correctly matched?

What is the Galileo project which has been in news recently?

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: