TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Science-Part 11

TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Science-Part 11

251.    The best method of disposal of garbage is

            A)        Vermiculture                         B)        Incineration

            C)        Land filling                            D)        Burning

Answer: (B)

252.    Sea weeds are an important source of

            A)        Iron                                         B)        Chlorine

            C)        Bromine                                 D)        Iodine

Answer: (C)

253.    Polio is caused by

            A)        Bacterium                              B)        Fungus

            C)        Virus                                       D)        Insect

Answer: (C)

254.    “Ozone” as such

            A)        protects the earth from ultraviolet sunrays

            B)        is catalyst in a number of chemical reactions

            C)        is utilized in greenhouse farming

            D)        is a gas which is hazardous when inhaled

Answer: (A)

255.    Lac is a product of

            A)        faecal matter            

            B)        secretion from the body

            C)        excretion from the body

            D)        excess food oozing out of the body

Answer: (B)

256.    which of the following plants is biennial?

            A)        Banana                        B)        Pineapple

            C)        Jackfruit                       D)        Carrot

Answer: (B)

257.    Growth of the baby in the uterus is found using

            A)        X-rays                                     B)        Gamma rays

            C)        Ultra sound                           D)        Ultraviolet rays

Answer: (C)

258.    Bees are particularly sensitive to

            A)        red colour                              B)        green colour

            C)        ultraviolet light                      D)        no colour

Answer: (D)

259.    The main controlling centre of the cell is the

            A)        nucleus                     B)        mitochondria

            C)        ribosome                 D)        Chloroplast

Answer: (B)

260.    In India, the first test tube baby Harsh was born on

            A)        July 6, 1986                          B)        Aug. 6, 1986

            C)        Sep. 6. 1986                          D)        Oct. 6, 1986

Answer: (C)

261.    Darwin’s concepts of evolution

            A)        are accepted today in toto 

            B)        have been completely refuted

            C)        rejected the inheritance of acquired characters

D)        are the basis of modern theory of evolution

Answer: (D)

262.    Genetic is the study of

            A)        cell division                          

B)        growth and differentiation

            C)        reproduction                        

D)        mechanisms of inheritance

Answer: (D)

263.    Genetic engineering is

            A)        chromosomal alterations

            B)        cytochromosomal alterations

            C)        genes alterations                            

D)        nucleus alterations

Answer: (C)

264.    Normally a balanced diet should be able to provide about

            A)        2,500 calories per day

            B)        3,000 calories per day

            C)        3,500 calories per day

            D)        4,000 calories per day

Answer: (B)

265.    What is the main component of bones and teeth?

            A)        Calcium carbonate

            B)        Calcium phosphate

            C)        Calcium sulphate

            D)        Calcium nitate

Answer: (B)

266.    Night blindness is caused due to deficiency of

            A)        Vitamin A                  B)        Vitamin B

            C)        Vitamin K                 D)        Vitamin E

Answer: (A)

267.    The blood enters the aorta from

            A)        left ventricle                   B)        left auricle

            C)        right ventricle                D)        right auricle

Answer: (D)

268.    In eye donation, which one of the following parts of donor’s eye is utilized?

            A)        Iris                                           B)        Lens

            C)        Cornea                                   D)        Retina

Answer: (C)

269.    In scorpion, poison is present in the

            A)        Leg                                         B)        Hand

            C)        Mouth                                     D)        Sting

Answer: (D)

270.    Which sequence explains complete metamorphosis?

            A)        Egg - Larva - Adult

            B)        Larva - Pupa - Adult

            C)        Egg - Nymph - Adult

            D)        Egg - Larva - Pupa - Adult

Answer: (D)

TNPSC GROUP – I Exam- 1999

(Preliminary Exam-Original Question paper)

271.    “ Decibel” is a unit of

            A)        Sound Intensity            B)        Light

            C)        Heat                              D)        Electricity

Answer: (A)

272.    The weight of a body is

            A)        the same everywhere on the surface of earth               

B)        maximum at the poles

            C)        maximum at the equator    

D)        more on the hills than in the plains

Answer: (B)

273.    Ball pen works on the principle of

            A)        Viscosity                   

B)        Boyle’s law

            C)        Gravitational force

D)        Capillarity and surface tension

Answer: (D)

274.    At what temperature a body will not radiate any heat energy?

            A)        0^° C                             B)        273^° C

            C)        100^° C                        D)        -237^° C

Answer: (D)

275.    In a standing wave the distance between a node and adjacent antinode is

                        3l                                            l

            A)        2                                  B)        2

                        l                                              3l

            C)        4                                  D)        4

Answer: (B)