UPSC 2004 › Science & Technology

21 questions · 2004 · answers as per the UPSC key

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Topics: Physics (5)Health & Diseases (3)Science & Technology History (3)Biology (2)Chemistry (2)Computer & Information Technology (2)Energy & Environment (2)Materials & Engineering (1)Science & Technology Institutions (1)

Consider the following statements:

  1. Non-function of lachrymal gland is an important symptom of deficiency of Vitamin A.
  2. Deficiency of Vitamin B1 can lead to indigestion and heart enlargement.
  3. Vitamin C deficiency can lead to pain in the muscles.
  4. Deficiency of Vitamin D causes increased loss of Ca++ in urine.

Which of these statements given above are correct?

(a) 1 and 2
(b) 2, 3 and 4
(c) 1, 3 and 4
(d) 1, 2, 3 and 4
Show answer
Answer: (a) 1 and 2

The hormone insulin is a

(a) Glycolipid
(b) Fatty acid
(c) Peptide
(d) Sterol
Show answer
Answer: (c) Peptide

In which organ of the human body are the lymphocyte cells formed?

(a) Liver
(b) Long bone
(c) Pancreas
(d) Spleen
Show answer
Answer: (b) Long bone

Consider the following statements:

  1. Adam Osborne produced the first portable computer.
  2. Ian Wilmut created the first cloned sheep.

Which of these statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Show answer
Answer: (c) Both 1 and 2

Param Padam, which was in news recently, is

(a) A new Civilian Award instituted by the Government of India
(b) The name of a supercomputer developed by India
(c) The name given to a proposed network of canals
(d) A software programme to facilitate e-governance in Madhya Pradesh
Show answer
Answer: (b) The name of a supercomputer developed by India

Consider the following statements:

  1. Banking soda is used in fire extinguishers.
  2. Quicklime is used in the manufacture of glass.
  3. Gypsum is used in the manufacture of Plaster of Paris.

Which of the statements given above is/are correct?

(a) 1 and 2
(b) 2 and 3
(c) 1 only
(d) 1, 2 and 3
Show answer
Answer: (d) 1, 2 and 3

Assertion (A): In our houses, the current in AC electricity line changes direction 60 times per second.

Reason (R): The frequency of alternating voltage supplied is 60 hertz.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Show answer
Answer: (a) Both A and R are individually true and R is the correct explanation of A

Assertion (A): Fatty acids should be a part of the balanced human diet.

Reason (R): The cells of the human body cannot synthesize any fatty acids.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Show answer
Answer: (c) A is true but R is false

Match List I (Institute) with List II (Located At) and select the correct answer using the codes given below:

  1. Coimbatore
  2. Mumbai
  3. Jabalpur
  4. Hyderabad

List I (A) Indian Institute of Geomagnetism (B) International Advanced Research Centre for Powder Metallurgy and New Materials (C) Salim Ali Centre for Ornithology and Natural History (D) Tropical Forestry Research Institutes

List II

Codes: ABCD

(a) 2 3 1 4
(b) 1 4 2 3
(c) 2 4 1 3
(d) 1 3 2 4
Show answer
Answer: (c) 2 4 1 3

Consider the following statements:

  1. Indira Gandhi Centre for Atomic Research uses fast reactor technology.
  2. Atomic Minerals Directorate for Research and Exploration is engaged in heavy water production.
  3. Indian Rare Earths Limited is engaged in the manufacture of Zircon for India's nuclear programme beside other rare earth products.

Which of these statements given above are correct?

(a) 1, 2 and 3
(b) 1 and 2
(c) 1 and 3
(d) 2 and 3
Show answer
Answer: (c) 1 and 3

Which of the following pairs is NOT correctly matched?

(a) Reinhold Messner — Computer Technology
(b) Harlow Shapley — Astronomy
(c) Gregor Mendel — Hereditary Theory
(d) Godfrey Housfield — CT Scan
Show answer
Answer: (a) Reinhold Messner — Computer Technology

A car is running on a road at a uniform speed of 60 km/hr. The net resultant force on the car is

(a) Driving force in the direction of car’s motion
(b) Resistance force opposite to the direction of car’s motion
(c) An inclined force
(d) Equal to zero
Show answer
Answer: (d) Equal to zero

The research work of Paul Lauterbur and Peter Mansfield, the Nobel Prize winners for Medicine in 2003, relates to

(a) The control of AIDS
(b) Magnetic resonance imaging
(c) Respiratory diseases
(d) Genetic engineering
Show answer
Answer: (b) Magnetic resonance imaging

Match List I (Fuel Gases) with List II (Major Constituents) and select the correct answer using the codes given below:

  1. Carbon monoxide, Hydrogen
  2. Butane, Propane
  3. Methane, Ethane
  4. Hydrogen, Methane, Carbon monoxide

List I (A) CNG (B) Coal gas (C) LPG (D) Water gas

List II

Codes:

(a) A 2 B 1 C 3 D 4
(b) A 3 B 4 C 2 D 1
(c) A 2 B 4 C 3 D 1
(d) A 3 B 1 C 2 D 4
Show answer
Answer: (b) A 3 B 4 C 2 D 1

A spherical body moves with a uniform angular velocity ω around a circular path of radius r.

Which one of the following statements is correct?

(a) The body has no acceleration
(b) The body has a radial acceleration ω²r directed towards the centre of the path
(c) The body has a radial acceleration 2/5 ω²r directed away from the centre of the path
(d) The body has an acceleration ω²r tangential to its path
Show answer
Answer: (b) The body has a radial acceleration ω²r directed towards the centre of the path

Standard 18-carat gold sold in the market contains

(a) 82 parts gold and 18 parts other metals
(b) 15 parts gold and 82 parts other metals
(c) 18 parts gold and 6 parts other metals
(d) 9 parts gold and 15 parts other metals
Show answer
Answer: (c) 18 parts gold and 6 parts other metals

A weightless rubber balloon is filled with 200 cc of water. Its weight in water is equal to

(a) 9.85 N
(b) 9.8/10 N
(c) 9.8/2 N
(d) zero
Show answer
Answer: (d) zero

Salts

of which of the following elements provide colours to fireworks?

(a) Zinc and sulphur
(b) Potassium and mercury
(c) Strontium and barium
(d) Chromium and nickel
Show answer
Answer: (c) Strontium and barium

Consider the following statements:

  1. Femur is the longest bone in the human body.
  2. Cholera is a disease caused by bacteria.
  3. ‘Athlete’s foot’ is a disease caused by virus.

Which of the statements given above are correct?

(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3
Show answer
Answer: (a) 1 and 2

Consider the following statements:

  1. Smart Card is a plastic card with an embedded microchip.
  2. Digital Technology is primarily used with new physical communication medium such as satellite and fibre optics transmission.
  3. A digital library is a collection of documents in an organized electronic form available on the Internet only.

Which of these statements given above is/are correct?

(a) 3 only
(b) 1 and 2
(c) 2 and 3
(d) 1, 2 and 3
Show answer
Answer: (b) 1 and 2

A person stands at the middle point of a wooden ladder which starts slipping between a vertical wall and the floor of a room, while plane. The path traced by a person standing at the middle point of the slipping ladder is

(a) A straight line
(b) An elliptical path
(c) A circular path
(d) A parabolic path
Show answer
Answer: (c) A circular path