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TNPSC Group 4 2019 question paper with answer key

2019 · G4

Questions 131 to 138 of 200

By TNPSC Guide editorial team · Last updated:

  1. Question 131

    Which of the following fact is incorrect about monocotyledonous plants?

    1. A. Seed has single cotyledon
    2. B. Leaves have parallel venation
    3. C. Fibrous root system present
    4. D. Flowers are pentamerous
    Answer and explanation

    Correct answer: D. Flowers are pentamerous

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 43, question 131; final answer key 28.06.2021, S.No. 131: D)

  2. Question 132

    Which of the following fact is incorrect about mitosis?

    1. A. It occurs only in body cells
    2. B. Mitosis has two divisions
    3. C. Maintenance of 2n chromosomes
    4. D. Two diploid cells are produced
    Answer and explanation

    Correct answer: B. Mitosis has two divisions

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 43, question 132; final answer key 28.06.2021, S.No. 132: B)

  3. Question 133

    Which of the following are wrong? I. Na₂CO₃ is used in softening hard water II. NaHCO₃ is used for bleaching cotton and linen in textile industry III. CaSO₄ ½ H₂O is used for plastering fractured bones IV. CaOCl₂ is used in making of baking powder

    1. A. I and IV
    2. B. II and IV
    3. C. I and III
    4. D. III and IV
    Answer and explanation

    Correct answer: B. II and IV

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 44, question 133; final answer key 28.06.2021, S.No. 133: B)

  4. Question 134

    Focal length of a convex mirror whose radius of curvature 40 cm is

    1. A. 20 cm
    2. B. 40 cm
    3. C. 80 cm
    4. D. infinity
    Answer and explanation

    Correct answer: A. 20 cm

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 45, question 134; final answer key 28.06.2021, S.No. 134: A)

  5. Question 135

    A man has to exert a force of 10 N at the edge of a door to push it open. How much force will the man have to exert if he pushes the centre of the door?

    1. A. 10 N
    2. B. 5 N
    3. C. 15 N
    4. D. 20 N
    Answer and explanation

    Correct answer: D. 20 N

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 45, question 135; final answer key 28.06.2021, S.No. 135: D)

  6. Question 136

    The first battery was made by

    1. A. Joule
    2. B. George Simon ohm
    3. C. Alessandro Volta
    4. D. Newton
    Answer and explanation

    Correct answer: C. Alessandro Volta

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 45, question 136; final answer key 28.06.2021, S.No. 136: C)

  7. Question 137

    The average height of 12 students in a class was calculated as 152 cm. On verification it was found that one reading was wrongly recorded as 148 cm instead of 172 cm. Find the correct mean height

    1. A. 150 cm
    2. B. 156 cm
    3. C. 158 cm
    4. D. 154 cm
    Answer and explanation

    Correct answer: D. 154 cm

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 46, question 137; final answer key 28.06.2021, S.No. 137: D)

  8. Question 138

    The difference of the squares of two positive numbers is 45. The square of the smaller number is four times the larger number. Find the numbers

    1. A. 3 and 15
    2. B. 9 and 5
    3. C. 3 and 16
    4. D. 9 and 6
    Answer and explanation

    Correct answer: D. 9 and 6

    Final answer key

    Source: Combined Civil Services Examination-IV (Group-IV Services) 2018-2019 and 2019-2020, question booklet CCS4T/19 (booklet code AAA), General Tamil with General Studies, General Studies file (questions 101-200), published with the tentative answer key (CCS4T/19 page 46, question 138; final answer key 28.06.2021, S.No. 138: D)

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