General Knowledge Questions And Answers :: General Science: part3



General Knowledge : General Science QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

21.Carbon tetrachloride fire extinguisher should not be used in closed rooms, because it produces a poisonous gas called

carbon monoxide
phosphine
phosgene
None of these

22.Epoxy resins are used as

moth repellants
isecticides
detergents
adhesives

23.The hydrogenation of the vegetables oils takes place in the presence of finely divided

aluminium
charcoal
silica
nickel

24.Fish plates in railway track are used

to join two coaches
to connect two rails
to guide the wheels of coach
Both (B) and (C) above

25.Chemical change does not take place in case of

souring of milk into curd
risting of iron in atmosphere
burning of magnesium ribbon in air
emitting of light by a red hot platinum wire

More General Science QUESTIONS AND ANSWERS available in next pages

    Health is the greatest gift, contentment is the greatest wealth -Buddha
If you are not willing to risk the usual you will have to settle for the ordinary- Jim Rohn