Friday, 20 December 2013

TET Preparation Multiple Choice Questions Environmental Science


1. Which of the following is a biodegradable waste?
[A]  Plastics
[B]  Polythene
[C]  Glass
[D]  None of these
Answer: [D]

2. Dachigam National Park is in which state?
[A]  Himachal Pradesh
[B]  J&K
[C]  Tamilnadu
[D]  Sikkim
 Answer: [B]

 3. Who started the Chipko Movement?
[A]  Kiran Bedi
[B]  S. L Bahuguna
[C]  Medha Patkar
[D]  None of these
Answer: [B]

4.When was PROJECT TIGER launched?
[A]  2011
[B]  1970
[C]  1973
[D]  2007
Answer: [C]

 5. How much percentage of water in the oceans is drinkable?
[A]  97.2%
[B]  2.15%
[C]  0.65%
[D]  0.0%
Answer: [C]

6. What is BOD5?
[A]  Biochemical Oxygen Demand in 5 hrs
[B]  Biochemical Oxygen Demand in 5 days
[C]  Biochemical Oxygen Demand in 5 months
[D]  Biochemical Oxygen Demand in 5 minutes
Answer: [B]

7. What type of radiation is trapped on the earth’s surface by the green house effect?
[A]  UV rays
[B]  γ-rays
[C]  X-rays
[D]  IR rays
 Answer: [D]


8. London smog is found in?
[A]  Summer during day time
[B]  Summer during morning time
[C]  Winter during day time
[D]  Winter during morning time
Answer: [D]

 9.    A tight whirlpool of wind formed in the stratosphere which surrounds Antarctica is called?
[A]  Polar stratospheric cloud
[B]  Polar Vortex
[C]  Both (A) & (B)
[D]  None of these
 Answer: [B]

10. Bhopal gas tragedy occurred due to?
[A]  Methane
[B]  Phosgene
[C]  Methyl-isocyanate
[D]  Methyl amine
 Answer: [C]

 11. White lung cancer is caused by?
[A]  Asbestos
[B]  Paper
[C]  Textiles
[D]  Silica
Answer: [C]

 12. Which of the following has greatest affinity for hemoglobin?
[A]  CO
[B]  NO
[C]  O2
[D]  CO2
Answer: [B]

13. The first nuclear disaster occurred in the history of world on
[A]  16th August, 1945
[B]  26th August, 1945
[C]  06th August, 1945
[D]  08th August, 1945
Answer: [C]

14. When did Supreme Court of India ordered Ministry of Environment & Forests to establish a special division to develop a green belt around Taj Mahal?
[A]  2004
[B]  1994
[C]  1984
[D]  None of these
Answer: [B]

15. Silent Valley, which has been raised to the status of National park, is situated in?
[A]  J&K
[B]  Tamilnadu
[C]  West Bengal
[D]  Kerala
 Answer: [D]

16. Which of the following device(s) is used to control particulate pollutants?
[A]  Gravity settling chamber
[B]  Cyclone collector
[C]  Fabric filter
[D]  All of the above
Answer: [D]

 17. Noise pollution (Regulation & Control) Rules 2001 deals with?
[A]  Noise pollution due to fire crackers
[B]  Noise pollution due to loudspeakers
[C]  Noise pollution due to public address system
[D]  Both (B) & (C)
Answer: [D]

18. Which book has been prepared by International Union for Conservation of Nature and Natural Resources (IUCN) concerning endangered species of plants and animals?
[A]  White Data Book
[B]  Red Data Book
[C]  Blue Data Book
[D]  None of these

Answer: [B]

19. The BISHNOI Sect was founded by
[A]  B. R. Ambedkar
[B]  Bhajan Lal
[C]  Guru Jambheshwar
[D]  King of Jodhpur
Answer: [C]

20. High concentration of which of the following causes leaf curling, leaf drop and reduced leaf size in plants?
[A]  SO2
[B]  CO
[C]  NO2
[D]  None of these
 Answer: [B]

 21. Traces of radioactive waste present in water can cause?
[A]  Cancer
[B]  Eye cataract
[C]  DNA breakage
[D]  All of these
Answer: [D]

22. How much area is covered under forest in India?
[A]  33.47 %
[B]  29.47 %
[C]  22.47 %
[D]  19.47 %
 Answer: [D]

23. The Greenhouse effect was first recognized by?
[A]  Jean-Baptiste Greenwood
[B]  Jean-Baptiste Fourier
[C]  Jean-Baptiste Greenhouse
[D]  None of the above
Answer: [B]

24. Which of the following is responsible for global warming?
[A]  Chloro-flouro carbons
[B]  Methane
[C]  Carbon dioxide
[D]  All of these
Answer: [D]

25. Which of the following acid is present in Acid rain?
[A]  HNO3
[B]  H2SO4
[C]  CH3COOH
[D]  Both (A) & (B)
Answer: [D]

26. The situation of depletion of Ozone layer is referred as OZONE HOLE, if the ozone level decreases below
[A]  800 DU
[B]  400 DU
[C]  200 DU
[D]  None of these
 Answer: [C]

27. Which of the following is a non-governmental organization dedicated to wildlife conservation?
[A]  World Wildlife Fund for Nature, INDIA
[B]  Indian Board for Wildlife
[C]  National Wildlife Action Plan
[D]  All of these
 Answer: [A]

28. Everyone has the right to a Nationality is covered in .............. of Universal Declaration of Human Rights ?
[A]  Article 10
[B]  Article 15
[C]  Article 20
[D]  Article 25
 Answer: [B]

29. Ten percent law is given by
[A]  Lindmann
[B]  Goldmann
[C]  Beckmann
[D]  None of these
 Answer: [A]

30. Environment Impact Assessment(EIA) was formally established in USA in year
[A]  1967
[B]  1969
[C]  1971
[D]  1973
 Answer: [B]

Questions and Answers - Information technology


1. Who developed the first all electronic computers by 1940?

(a) Clifford Bery
(b) George Boole
(c) Atanasuff and Berry
(d) John V. Atanasoff

Answer : Atanasuff and Berry

2. The high voltage level of a digital signal in positive logic is :

(a) 0
(b) 1
(c) either 0 or 1
(d) None of these

Answer : 1

3. The Gateway Internet Access Services (GIAS) of India is situated in

(a) Delhi
(b) Mumbai
(c) Chandigarh
(d) Madurai

Answer : Mumbai

4. Octal 6 is equal to decimal :

(a) 14
(b) 16
(c) 15
(d) 13

Answer : 14

5. In  decimal system the base or radix is :

(a) 1
(b) 0
(c) 10
(d) None of these

Answer : 10

6. Which logic gate is similar to the function of two series switches?

(a) NOR
(b) OR
(c) AND
(d) NAND

Answer : OR

7. How many flip flops are needed for a 4 bit counter?

(a) 3
(b) 4
(c) 6
(d) None of these

Answer : 4

8. Which of the following is not a HIGH LEVEL computer programming language?

(a) COBOL
(b) FORTRAN
(c) MODEM
(d) None of these

Answer : COBOL

9. A device with slowest switching speed is :

(a) Nixie tubes
(b) LED
(c) LCD
(d) None of these

Answer : LCD

10. The connecting leads in an IC chip are made of :

(a) Aluminium
(b) Silicon
(c) Calcium
(d) None of these

Answer : Aluminium

11. A memory used for storing variable quantities is :

(a) RAM
(b) EPROM
(c) ROM
(d) PROM

Answer : RAM

12. Which of the following is the minimum error code?

(a) Gray code
(b) Octal code
(c) Binary code
(d) None of these

Answer : Gray code

13. Which of the following is a temporary memory?

(a) ROM
(b) RAM
(c) Both
(d) None of these

Answer : RAM

14. Which of the following uses the least power?

(a) ECL
(b) CMOS chip
(c) TTL
(d) None of these

Answer : CMOS chip

15. The decimal equivalent of the hexadecimal number ES is:

(a) 327
(b) 229
(c) 279
(d) None of these

Answer : 229

16. Which logic gate is similar to the function of two parallel switches?

(a) NAND
(b) AND
(c) OR
(d) NOR

Answer : OR

17. A type of memory chip whose contents can be quickly changed by the computer at any time is called:

(a) VDT
(b) RUM
(c) ROM
(d) RAM

Answer : RAM

18. The number of levels in a digital signal is

(a) One
(b) Two
(c) Four
(d) None of These

Answer : Two

19. A device that converts from decimal to binary number is called :

(a) Encoder
(b) Decoder
(c) Converter
(d) None of these

Answer : Encoder

20. 'Mega Bytes' is the unit for measuring which of the following :

(a) Density of population
(b) Intensity of earthquakes
(c) Memory capacity of a computer
(d) None of these

Answer : Memory capacity of a computer

21. The radix of a decimal system is :

(a) 8
(b) 3
(c) 16
(d) 2

Answer : 8

22. The logic circuit corresponding to - 'sign' is :

(a) NAND gate
(b) AND gate
(c) NOR gate
(d) OR gate

Answer : NOR gate

23. When family of logic circuits circuits uses field effect transistors?

(a) CMOS
(b) Both 'A' or 'B'
(c) TTL
(d) None of these

Answer : CMOS

24. Which of the following stands for one million floating point operations a second?

(a) Floating Point
(b) Megaflops
(c) Nanflops
(d) Speed

Answer : Megaflops

Thursday, 19 December 2013

Questions based on Computers

1. The number system on which the modern computers operate ------------
 A.  Decimal number system
 B.  Octal number system
 C.  Binary number system
 D.  Hexadecimal number system

Answer: C

2. The jump statements of Java consist of
A. Break
B. Continue
C. Return
D. All the above

Answer: D

3. A number system with a base of 8 is referred as
A. Binary
B. Octal
C. Decimal
D. Hexadecimal

Answer: B

4. CPU stands for -------------
A. Computer Processing Unit
B. Central Processing Unit
C. Computer Protection Unit
D. Central Processing Upload

Answer: B

4. The results of arithmetical and logical operations are stored in a / an
A. accumulator
B. instruction register
C. cache
D. Rom

Answer: A

5. The character ‘\n’ is known as
A.  Letter n
B.  String
C.  New line
D.  None of the above

Answer: C

6. The base of the hexadecimal number system is
A. 2
B. 4
C. 10
D. 16

 Answer: D

7. The unit Kilo instructions per second is used to measure the speed of
A.  Tape drive
B.  Disk drive
C.  Printer
D.  Processor

Answer: D

8. The smallest unit of any computer system is --------- which eight are combines to form a byte.
A.  Bit
B.  Binary
C.  Octal
D.  Gigabyte

Answer: A

9. Which of the following is a Web browser?
A.  Paint
B.  PowerPoint
C.  Firefox
D.  Word

Answer: C

10. What is the default file extension for all Word documents?
A.  FIL
B.  TXT
C.  DOC
D.  WRD

Answer: C

11. The word length of a computer is measured in
A.  Bits
B.  Bytes
C.  Millimeters
D.  Meters

Answer: B

12. Who is considered to be The Father of Artificial Intelligence?
A.  George Boole
B.  John McCarthy
C.  Allen Newell
D.  Alan Turing
Answer:  B

13. EBCDIC is ------------
A. 6 bit coding system
B. 7 bit coding system
C. 8 bit coding system
D. 9 bit coding system

Answer: C

14. A system software package that converts a high level language program to machine  language is known as -----------
 A.  AmiPro
 B.  Compiler
 C.  Comment
 D.  Collate

Answer: B

15. Device used to store the Programs and data is ----------
A.  Control Unit
B.  Memory Unit
C.  Arithmetic and Logic Unit (ALU)
D.  None of these

Answer: B

16. The use of parity bit is for ---------
A.  Coding
B.  Indexing
C.  Error detection
D.  None of these

Answer: C


17. Auxiliary storage is -------
A.  Secondary storage
B.  Primary storage
C.  Processing device
D.  None of these

Answer: A

18. Bubble Memory is ------------
A.  Nonvolatile
B.  Volatile
C.  Permanent
D.  None of these

Answer: A

19. DNS refers to ----------
A.  Data Number Sequence
B.  Domain Name System
C.  Disk Numbering System
D.  Digital Network Service

Answer: D

20. Java was originally invented by
A.  Microsoft
B.  Novell
C.  Sun
D.  Oracle

Answer: C

21. Select the smallest memory size
A.  Kilobyte
B.  Gigabyte
C.  Megabyte
D.  Terabyte

Answer: A


22. Compilers and Interpreters are themselves
A.  High level language
B.  Programs
C.  Codes
D.  Mnemonics

Answer: B

23. In a Pascal procedure, the parameters are separated by ----------
A.  Colon
B.  Comma
C.  Semicolon
D.  Blank space

Answer: B

24. Programs stored in ROM are called ------------
A.  Hardware
B.  Software
C.  Firmware
D.  None of these

Answer: C

25. In virtual storage, program segments stored on disk during processing are called
A.  Sections
B.  Partitions
C.  Sectors
D.  Pages

Answer: C