TS SI Mains 2018 General Awareness
For the following questions answer them individually
A polymer that softens on heating and hardens on cooling is known as a thermoplastic. Which one of the following is the example for thermoplastics ?
Statement (A) : Silver and copper are good conductors of electricity.
Statement (B) : Glass and rubber are insulators of electricity.
The correct answer is :
The optical instrument that is used by Army personnel to sec their enemies while hiding themselves is:
Which among the following is an amphoteric oxide (which behaves acidic as well as basic) ?
Assertion (A) : Oils are generally liquids at room temperature.
Reason (R) : Oils contain unsaturated fatty acids.
The correct answer is:
Which one ofthe following levels of carbon monoxide present in atmosphere (in ppm)leads to instant death of human beings ?
Which of the following statements are correct ?
a. Melamine polymer is used in the manufacture of unbreakable crockery.
b. Enzymes are biocatalysts.
c. DNA fingerprinting is used for identification of criminals.
d. Tincture of iodine is an antiseptic.
