TNPSC Group-1 Examination Previous year Science Question papers with Answer
SCIENCE
1.)Which of the following is/are correctly Matched?
I. Hard resin - Cocaine
III. Latex - Rubber
II. Oleoresin - Canada balsam
IV. Alkaloid - Asafoetida
(A). I Only
(B). II and III
(C). III Only
(D). I and IV
2.)The Chromonema is a coiled structure, Which can be easily separated in case of
(A).Paranemic Coil
(B).Plectonemic Coil
(C).Chromonemic coil
(D).Telonemic Coil
3.)In 1905, Albert Einstein Discovered
A.) Photoelectric and effect Brownian motion
B.) Brownian motion and theory of relativity
C.) special theory of relativity and Photoelectric effect
D.) Photoelectric effect, special theory, and Brownian motion
4.)which of the below is/are wrong?
1. dynamic lift of airplane is based on this principle of Bernoulli's theorem
2. Glass elastic than rubber
3. for a system free from external forces, linear momentum of the remains constant
(A). (2) only
(B). Both (2) and (3)
(C). (3) only
(D). Both (1) and (2)
5.) A rocket 100m long at rest starts to move a uniform motion of 0.8C. what is its length As seen by an observer at rest?
(A). 60cm
(B). 80 cm
(C).100 cm
(D). 0
6.) which of the following has the highest ionizing power?
(A). X rays
(B). alpha rays
(C). beta rays
(D). Gamma rays
7.) sound waves from a sounding car are
(A). transverse waves
(B). longitudinal waves
(C). Ultrasonic waves
(D). stationary waves
8.) Hormone Gastrin acts as
(A). stimulates HCI production
(B). causes contraction of gall Blader
(C). water and salt secretion
(D). stimulate urine elimination
9.) The transfer RNA (tRNA) carries the activated amino acids at its
(A). 5' OH terminal
(B). 3' CCA terminal
(C).T C loop
(D). Anticodon end
10. Neisser in 1879 discovered a sexually transmitted disease known as
(A). Syphilis
(B). AIDS
(C). Gonorrhea
(D). hydrocele
11. how many printing characters are there ASCII?
(A). 90
(B). 65
(C). 94
(D). 62
12. GIS stands for
(A). geography information system
(B). Global information system
(C). Graphical information system
(D). Google information system
13. the warm current that travels up to Cape Hatteras is known as
13. the warm current that travels up to Cape Hatteras is known as
(A). Benguela
(B). Labrador
(C). gulf stream
(D). Falkland
14.)The purines present in nucleic acids are
I. Adenine and cytosine
II. Guanine and Thymine
III. Adenine and Guanine
IV. Cytosine and Uracil
(A). IV
(B). III
(C). II
(D). I
15.) find out correct match/es
I. enzymes - biological catalysts
II. DNA - nucleic acid
III. insulin - hormone
IV. Vitamin E - water-soluble vitamin
(A). II Only
(B). I Only
(C). I, II and IV
(D). I, II and III
16.) expand FAT
(A).first allocation type
(B). file allocation types
(C). first allocation table
(D). file allocation table
17. which of the following is used to store large amounts of data
(A). primary memory
(B). axillary storage
(C). cache memory
(D). Random Access Memory
18. 'Bluetooth' Technology is
(A). satellite communication
(B). wired communication between devices
(C). wireless communication between devices
(D). communication between landline to a mobile phone
19. the plant type which colors the ocean surface water red is
(A). Dinoflagellates
(B). golden algae
(C). green algae
(D). red algae
20. which of the following is not a planetary wind?
(A). westerlies
(B). trade winds
(C). monsoon
(D). polar easterlies
21.the valence electron of the impurity atom that is to be added to Germanium crystal so as to make it n-type semiconductor is
(A). 6
(B). 5
(C). 4
(D). 3
22. A particle executes S.H.M. The acceleration of the particle is maximum
(A). At extreme position
(B). at mean position
(C). Midway between the mean and extreme position
(D). acceleration is the same at all positions
23. the velocity of sound is maximum in
(A). water
(B).Air
(C). Metal
(D). Vacuum
24. The aqueous solution of potassium chloride is
(A). a weak electrolyte
(B). a strong electrolyte
(C). a nonelectrolyte
(D). initially weak and then become a strong electrolyte
25. An acid is a substance that can lose a Proton is called
(A). arrhenius concept
(B). Bronsted-Lowry concert
(C). lewis concert
(D).Usanovich concept
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