Skip to main content
Loading page, please wait…
Vaidra Logo
Vaidra

Top 4 items + smart groups

UPSC GPT
New
Current Affairs
Daily Solutions
Daily Puzzle
Mains Evaluator

Version 2.0.0 • Built with ❤️ for UPSC aspirants

UPSC Science & Technology PYQs 2009 | Vaidra | Vaidra
  1. Home
  2. Practice
  3. PYQs
  4. Science & Technology
  5. 2009

Science & Technology UPSC PYQ 2009

32 questions from the UPSC 2009 examination.

32 questions

1Easyprelims2 marks
Quantitative Aptitude

While adding the first few continuous natural numbers, a candidate missed one of the numbers and wrote the answer as 177. What was the number missed?

A11
B12
C13
D14
2Easyprelims2 marks
Logical Reasoning & Puzzles

How many letters of the English alphabet (capitals) appear same when looked at in a mirror?

A9
B10
C11
D12
3Easyprelims2 marks
Energy & Environment

In a dry cell (battery), which of the following are used as electrolytes?

AAmmonium chloride and Zinc chloride
BSodium chloride and Calcium chloride
CMagnesium chloride and Zinc chloride
DAmmonium chloride and Calcium chloride
4Easyprelims2 marks
Physics

Which one among the following has the highest energy ?

ABlue light
BGreen light
CRed light
DYellow light
5Mediumprelims2 marks
Defence Technology

In the context of Indian defence, consider the following statements : 1. The Shourya missile flies with a speed of more than 8 Mach. 2. The range of Shourya missile is more than 1600 km. Which of the statements given above is/are correct ?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
6Easyprelims2 marks
Space Technology & Astronomy

Who of the following scientists proved that the stars with mass less than 1·44 times the mass of the Sun end up as White Dwarfs when they die ?

AEdwin Hubble
BS. Chandrashekhar
CStephen Hawking
DSteven Weinberg
7Mediumprelims2 marks
Quantitative Aptitude

In an examination, there are three subjects A, B and C. A student has to pass in each subject. 20% students failed in A, 22% students failed in B and 16% failed in C. The total number of students passing the whole examination lies between

A42% and 84%
B42% and 78%
C58% and 78%
D58% and 84%
8Mediumprelims2 marks
Quantitative Aptitude

In a carrom board game competition, m boys and n girls (m > n > 1) of a school participate in which every student has to play exactly one game with every other student. Out of the total games played, it was found that in 221 games one player was a boy and the other player was a girl. Consider the following statements : 1. The total number of students that participated in the competition is 30. 2. The number of games in which both players were girls is 78. Which of the statements given above is/are correct ?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
9Easyprelims2 marks
Logical Reasoning & Puzzles

A person travels 12 km due North, then 15 km due East, after that 15 km due West and then 18 km due South. How far is he from the starting point ?

A6 km
B12 km
C33 km
D60 km
10Easyprelims2 marks
Computer & Information Technology

WiMAX is related to which one of the following ?

ABiotechnology
BSpace technology
CMissile technology
DCommunication technology
11Mediumprelims2 marks
Quantitative Aptitude

How many times are an hour hand and a minute hand of a clock at right angles during their motion from 1.00 p.m. to 10.00 p.m.?

A9
B10
C18
D20
12Easyprelims2 marks
Quantitative Aptitude

A person has 4 coins each of different denomination. What is the number of different sums of money the person can form (using one or more coins at a time)?

A16
B15
C12
D11
13Mediumprelims2 marks
Logical Reasoning & Puzzles

There are three cans A, B and C. The capacities of A, B and C are 6 litres, 10 litres and 16 litres respectively. The can C contains 16 litres of milk. The milk has to be divided in them using these three cans only. Consider the following statements : 1. It is possible to have 6 litres of milk each in can A and can B. 2. It is possible to have 8 litres of milk each in can B and can C. Which of the statements given above is/are correct ?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
14Mediumprelims2 marks
Logical Reasoning & Puzzles

There is a family of 6 persons A, B, C, D, E and F. There are two married couples in the family. The family members are lawyer, teacher, salesman, engineer, accountant and doctor. D, the salesman is married to the lady teacher. The doctor is married to the lawyer. F, the accountant is the son of B and brother of E. C, the lawyer is the daughter-in-law of A. E is the unmarried engineer. A is the grandmother of F. How is E related to F?

ABrother
BSister
CFather
DCannot be established (cannot be determined)
15Mediumprelims2 marks
Space Technology & Astronomy

India has recently landed its Moon Impact Probe on the Moon. Among the following countries, which one landed such probe on the Moon earlier ?

AAustralia
BCanada
CChina
DJapan
16Easyprelims2 marks
Biology

In the context of Indian wild life, the flying fox is a

ABat
BKite
CStork
DVulture
17Mediumprelims2 marks
Biology

With reference to the evolution of living organisms, which one of the following sequences is correct?

AOctopus – Dolphin – Shark
BPangolin – Tortoise – Hawk
CSalamander – Python – Kangaroo
DFrog – Crab – Prawn
18Easyprelims2 marks
Physics

In the year 2008, which one of the following conducted a complex scientific experiment in which sub-atomic particles were accelerated to nearly the speed of light ?

AEuropean Space Agency
BEuropean Organization for Nuclear Research
CInternational Atomic Energy Agency
DNational Aeronautics and Space Administration
19Mediumprelims2 marks
Quantitative Aptitude

There are 240 balls and n number of boxes B1, B2, B3, … , Bn. The balls are to be placed in the boxes such that B1 should contain 4 balls more than B2, B2 should contain 4 balls more than B3, and so on. Which one of the following cannot be the possible value of n?

A4
B5
C6
D7
20Easyprelims2 marks
Biology

In making the saffron spice, which one of the following parts of the plant is used ?

ALeaf
BPetal
CSepal
DStigma
21Mediumprelims2 marks
Biotechnology & Genetics

In the context of genetic disorders, consider the following: A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct ?

ABoth children suffer from colour blindness
BDaughter suffers from colour blindness while son does not suffer from it
CBoth children do not suffer from colour blindness
DSon suffers from colour blindness while daughter does not suffer from it
22Mediumprelims2 marks
Biology

Consider the following statements: 1. Sweet orange plant is propagated by grafting technique. 2. Jasmine plant is propagated by layering technique. Which of the statements given above is/are correct?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
23Mediumprelims2 marks
Quantitative Aptitude

How many three-digit numbers can be generated from 1, 2, 3, 4, 5, 6, 7, 8, 9 such that the digits are in ascending order?

A80
B81
C83
D84
24Mediumprelims2 marks
Logical Reasoning & Puzzles

Six persons A, B, C, D, E and F are standing in a row. C and D are standing close to each other alongside E. B is standing beside A only. A is fourth from F. Who are standing on the extremes ?

AA and F
BB and D
CB and F
DNone of the above
25Mediumprelims2 marks
Biology

Consider the following : 1. Camphor 2. Chicory 3. Vanilla Which of the above is/are plant product(s) ?

A1 and 2 only
B3 only
C1 and 3 only
D1, 2 and 3
26Mediumprelims2 marks
Quantitative Aptitude

How many numbers lie between 300 and 500 in which 4 comes only one time?

A99
B100
C110
D120
27Easyprelims2 marks
Defence Technology

Consider the following statements: 1. INS Sindhughosh is an aircraft carrier. 2. INS Viraat is a submarine. Which of the statements given above is/are correct?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
28Easyprelims2 marks
Quantitative Aptitude

Four metal rods of lengths 78 cm, 104 cm, 117 cm and 169 cm are to be cut into parts of equal length. Each part must be as long as possible. What is the maximum number of pieces that can be cut?

A27
B36
C43
D480
29Easyprelims2 marks
Chemistry

Which one of the following is used as an explosive ?

APhosphorus trichloride
BMercuric oxide
CGraphite
DNitroglycerine
30Easyprelims2 marks
Physics

Which one of the following types of waves are used in a night vision apparatus ?

ARadio waves
BMicrowaves
CInfra-red waves
DNone of the above
31Hardprelims2 marks
Quantitative Aptitude

There are four persons A, B, C, D; and A has some coins. A gave half of the coins to B and 4 more besides. B gave half of the coins to C and 4 more besides. C gave half of the coins to D and 4 more besides. Both B and D end up with same number of coins. How many coins did A have originally?

A96
B84
C72
D64
32Easyprelims2 marks
Science & Technology Institutions

For outstanding contribution to which one of the following fields is Shanti Swarup Bhatnagar Prize given ?

ALiterature
BPerforming Arts
CScience
DSocial Service
Science & Technology — All Years|All Subjects