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General Science may be a vast subject, but it’s good to have some tertiary knowledge about it

These practice questions focusing on general science will aid aspirants to prepare better for the State government recruitment examinations.

1. Where is heparin derived from?

a) Intestines of pigs b) Intestines of goats
c) Intestines of cows
d) intestines of dogs
Ans: a

Explanation: Heparin comes from the intestines of pigs that are slaughtered for meat. Heparin is an important anticoagulant.

2. Dairy farming animals are called __
a) Milch animals
b) Apis animals
c) Domestic fowls
d) None of these
Ans: a

Explanation: Dairy farming animals are called milch animals. Dairy farming is a section of agriculture. Here milk is produced and processed for sales. Various products like curd, curd, cheese, butter, and cream are obtained through the management of dairy animals like sheep, goats, buffalo, and cows.

3. If an injury occurs to the hypothalamus region of the brain, where is it most likely to be affected?

a) Regulation of body temperature
b) Decision making
c) Co-ordination during locomotion
d) Short-term memory
Ans: a

Explanation: Whenever the hypothalamus is injured, it cannot control the body temperature. It is located above the midbrain and below the thalamus.

4. Name the thinnest bone in the human body?
a) Stapes b) Malleus c) Incus d) Fibula
Ans: d

Explanation: The fibula is a long bone in the lower extremity that is located on the lateral side of the tibia.

5. The adrenal cortex secretes all except __
a) Androgenic steroid
b) Cortisol
c) Relaxin
d) Aldosterone
Ans: c

Explanation: The adrenal cortex secretes all except Relaxin, which is produced primarily by the corpus luteum.

6. Which organism’s plasmid was first used to construct recombinant DNA?
a) Cyanobacteria b) Bacillus subtilis
c) Saccharomyces cerevisiae d) Salmonella typhimurium
Ans: b

Explanation: Bacillus subtilis organism’s plasmid was first used to construct recombinant DNA.

7. Consider the following statements with respect to the infrared spectrum:
i. Infrared waves do not easily get scattered and can pass through fog
ii. Rock salt prism is used in experiments for infrared spectrum; Quartz prism is used in experiments for ultraviolet radiation

Which among the above is / are correct statements?
a) Only i b) Only ii
c) Both i & ii d) Neither i nor ii
Ans: c

Explanation: Infrared spectroscopy is performed with infrared spectrometer which produces infrared spectrum. The wavelength of infrared wave is longer than visible light and can pass through dense regions in space with less scattering and absorption. Rock salt prism is used in experiments for infrared spectrum and quartz prism is used in experiments for ultraviolet radiation.

wavelength of infrared wave is longer than visible light and can pass through dense regions

K Aloke Kumar,
Director,
Telangana State
BC Study Circles