General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part4 : 31 to 35

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

31.As in the arms and legs, blood flows against gravity and is prevented from flowing back by

the extremely low pressure of venous blood

valves

movements in the surrounding muscles

the narrowing down of the lumen of veins by the contraction of the muscle layer comprising their walls

32.Rennin and lactase, the enzymes required to digest milk, disappear in the human body by the age of

two

three

five

eight

33.The pitch of the voice of women is generally

same as that of men

higher than that of men.

much lower than that of men

None of these

34.Detection of Rh factor is an example of

enzymatic reaction

chemical reaction

phagocytic reaction

immunologic reaction

35.Which of the following makes skin layer impervious to water ?

Collagen

Melanin

Keratin

Chitin

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

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