CTET 2011 Paper (Science Group)


Central Teacher Eligibility Test 2011 (CTET)
Solved Paper of Science Group (Science part only)
held on 26th June 2011
1. The green house effect which is causing an increase in the atmospheric temperature is mainly
    due to
    a)
carbon dioxide
    b) sulphur

    c) oxygen
    d) nitrogen
2. Hormone Adrenaline
    a) helps control height
    b) helps control balance of electrolytes in the body
    c) helps control level of sugar in the blood

    d) helps the body to adjust stress level when one is very angery or worried
3. If the pressure over a liquid increases, its boiling point
    a) does not change 
    b) first decreases and then increases
    c) decreases
    d)
increases
4. The inner surfaces of food cans are coated with tin and not with zinc because 
    a) zinc has a higher melting point than tin
    b) zinc is less reactive than tin

    c) zinc is costlier than tin
    d)
zinc is more reactive than tin
5. Non-metalic oxides
    a) are amphoteric in nature

    b) turn red litmus paper blue
    c) are acidic in nature
    d) are basic in nature
6. Green plants appear to release oxygen instead of carbon dioxide into the atmosphere during the
     day time because
    a) green plants respire during the day time but are involved in photosynthesis during the night time

    b) the rate of photosynthesis is higher than the rate of respiration during the day time 
    c) green plants do not resire during the night time
    d) green plants respire only during the night time
7. A feather weighing 5gm and a nail weighing 10gm have the same kinetic energy. Which of the 
    following statements is true about the momentum of the two bodies?  
    a) Both will have equal momentum
    b) It is not possible to compare the momentum of two objects
    c) The lighter body will have higher momentum
    d)
The heavier body will have higher momentum.
8. A doctor prescribes a medicine to treat hyperacidity. The main ingredient of the medicine is
    a) CaCo3
    b) Na2CO3
    c)
Al(OH)3
    d) MgCl2
9. The thumb of humans moves more freely than other fingers due to the presence of 
    a) hinge joint
    b)
saddle joint
    c) pivotal joint
    d) gliding joint
10. Four applicants for a post of TGT (Science)  were asked to plan a lesson on “Consequences of 
      Deforestation”. Which one of the following lesson plans reflects the scientific approach?
      a)
Includes activities that children can perform in groups and draw conclusions through
          a Power Point Presentation

      b) Mentions about the use of ICT to help students understand the concepts
      c) Explains in details the consequences of deforestation
      d) Provides a variety of examples to explain the concept
11.The main aim of conducting Mathematics and Science Olympiads is to
     a) help students score high marks in professional examinations
     b) grade schools based on the performance of their students
     c)
promote execellence in the subject by nurturing creativity and experimentation
     d) grade students according to their capabilities
12. Adding salt and sugar to food substances helps in preserving them for a longer duration. It is 
     because excess salt and sugar 
     a) cause change in the shape of microbial cells
     b) remove water from food
     c)
plasmolyse the microbial cells
     d) cause rupturing of microbial cells
13. Root cap is absent in 
     a) Mesophytes

     b) Halophytes
     c) Xerophytes
     d)
Hydrophytes
14.Most Boards of Educatiuon have banned the dissection of animals because
     a)
there is a need to sensitise students to prevention of cruelty to animals
     b) they may spread new diseases
     c) animals are no longer available for dissection
     d) procuring animals has become an expensive proposition
15. A common characteristic feature of plant sieve-tube cells and mammalian erythrocytes is
     a) absence of cell wall
     b) presence of haemoglobin
     c)
absence of nucleus
     d) absence of chloroplast
16. While diluting sulphuric acid, it is recommended that the acid should be added to water because
     a)
dilution of acid is highly exothermic
     b)
dilution of acid is highly endothermic
     c) acid has strong affinity for water
     d) acid may break the glass container
17. While selecting a performance task to help students develop research oriented skills in a Science
     class, a teacher may pick up a topic
     a) which she thinks is important for the students
     b)
related to a problem faced by students in their day-to-day functioning and which is a 
         part of the concepts to be covered for this class

     c) from the content given in the syllabus which must be completed in time
     d) which majority of the students in a class find interesting
18. A Sience teacher plans group activities to teach “Properties of Air” to her students of Class-VI. 
     Which one set of attributes would she like to have in the students she selects as group leaders?
     a) Giving more roles to brighter students to ensure the group finishes first
     b)
Assigning roles as per capability, motivating and coordinating among the group
         members

     c) Freedom to choose roles, work at their own pace and understanding
     d) Ordering students to take roles and deliver in consonance with their understanding
19. An air bubble inside water behaves like a  
     a) plano-convex lens
     b) concave mirror

     c) concave lens
     d) convex lens
20. Bakelite is used in making electrical appliances because it is a 
     a) good conductor of electricity
     b)
good insulator of electricity
     c) thermoplastic
     d)
good conductor of heat   
21. LED and CFL are very commonly used as sources of light in homes. Which of the following
     statements is true?
     a) Both are equally good
     b) Neither of them is good because both contain toxic materials
     c) CFL is better beacuse LED contains toxic materials
     d)
LED is better beacuse CFL contains toxic materials
22. In which of the following cases of motion, are the distance moved and the magnitude of 
     displacement equal?
     a)
A pedulum oscillating to and fro
     b) The Earth revolving around Sun
     c) A car moving on a straight road 
     d) A car moving in a circular path
23. While investiagting ‘how water affects the germination of seeds’, a teacher asked the students to
     soak bean seeds on a bed of cotton wool for a few days and observe the changes. What is the
     guideline that she forgot to mention?
     a) many seeds on dry cotton
     b)
a few seeds on dry cotton
     c) many seeds on wet cotton
     d) a few seeds on wet cotton
24. While teaching the concept, ‘force can change the shape of an object” to students, a teacher 
      plans the following activities: 
     a) Explain concepts using commonly observed examples.
     b) Provide a dough on a plate and ask the students to press it down with the hand.
     c) Show an audio-visual film explaining the concept with some examples
     
      The teacher is using different approaches to learning because
     1) she wants to prepare students for a test
     2)
there are different kind of learners in the class and  she wants to address mutilple
         intelligences

     3) she wants to prove her knowledge
     4) she knows she must follow her lesson plan
25. Ms. Patel, Principle of a School XYZ, is keen about integrated approach to teaching of Science 
     rather than teaching different disciplines separately. The basis of this is  
     a) difficulty of students to adjust to different teachers
     b)
all the disciplines are interlinked and a teacher can draw on cross-curricular linkages.
     c) non-availablity of qualified teachers in her school to teach separate disciplines
     d) difficulty to adjust the teachers in the time table
26. A teacher plans to teach “Components of Food” in Class-VI. Whcih of the following can be used 
     as an essential question? 
     a) Does your mother prepare a definite set of food items for lunch every day?

     b) Do you eat all the items served in your lunch every day?
     c) List the food items your mother serves you in lunch

     d) Why does your mother serve you a meal with a variety of food items?
27. A man goes door to door posing as a goldsmith. He promises to bring back the glitter on dull
     gold ornamnets. An unsuspecting woman gives a set of gold bangles to him which he dips in
     a particular solution. The bangles sprakle but their weight has considerably reduced. The 
     solution used by the impostor probably is 
     a)
a mixture of conc. HCL and conc. HNO3
     b) conc. HNO3
     c) dil. HCL

     d) conc. HCL
     
Aqua regia (a mixture of nitric acid and hydrochloric acid ) dissolves gold. Such essay type statements of the ques. 
        put-up there only to waste candidate’s precious time.
28. When iron nail is dipped in copper sulphate solution, the colour of copper sulphate solution fades
     and a browinsh layer is deposited over the iron nail. This is an example of  
     a) double displacement reaction
     b)
displacement and redox reaction
     c) combination reaction
     d) decomposition reaction
29. Bleeding is stopped by the application of alum to a wound because
     a) alum reduces the temperature near the wound
     b) alum is an antiseptic

     c) the wound is plugged by the alum chunk
     d)
alum coagulates the blood and forms a clot
30. Which of the following can be assessed when Geeta is using only MCQ as a tool to assess 
     “Nutrition in Humans”?
     a) Learners’s ability to apply knowledge and prepare a role play to present in the morning 
         assembly
     b) Learner’s ability to comprehend the importance of components of food and write a long essay
     c)
Analytical abliltiy to classify to food items and make a poster 
    d) Misconception related to food habits
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About Naren
Full name - Narender Jangra      Location - India    Qualification - MCA

8 Responses to CTET 2011 Paper (Science Group)

  1. geetika says:

    Sir, i think that for the last question, last option is correct…kindly suggest as mcq’s has nothing to do with poster making….

    • Naren says:

      @geetika <—-
      May be you are right ….but MCQ tests are an efficient means for the assessment of
      knowledge, analytical ability, language proficiency and numerical skills. The teacher
      may ask the students for poster making after assessment. …

  2. reyaz says:

    sir Q.N.23, i think it is,few seeds on wet cotton,as germination will occur only when cotton is wet

  3. Richa says:

    Qo. No. 23 Ans. should be “a few seeds on wet cotton”

    • Naren says:

      @ Richa / Reyaz
      i think you should read the que. statement carefully……the teacher ask abt
      soak been seeds not dry been seeds to be
      placed over bed of cotton ….the been seeds are already soaked (means
      seeds already absorbed a lot of water while soaking).

      now to see the water affects, we need to place few dry been seed on dry
      cotton bed……..also if possible for you, give a look to hindi version of this
      statement, u can easily understand what the teacher forget to ask the students.

      Well I hope you got it now…………

      • Richa says:

        YES In Qo. tacher asked students to soak bean seeds on a bed of cotton wool…& not to
        place already soaked seeds on cotton….wet cotton will keep the seeds moistured which is
        necessary for their germination… (i think there is difference between to soak & already soaked ..as per your advise i have looked the hindi version of this statement also..moreover
        @onlineteachers.com the answer is “a few seeds on wet cotton”..so I have no doubts now)

        Thank you so much.

  4. Anita says:

    In ques 23 the teacher is actually telling the students to soak the beans that means the beans are not soaked yet and thus the teacher forgot to include the step which actually will make the students to supply water to the system.

  5. Kumud says:

    Q 22. distance and displacement are equal in straight line motion, not in oscillatory motion

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