General Knowledge Questions And Answers :: General Science: part17



General Knowledge : General Science QUESTIONS AND ANSWERS :: part17 : 76 to 80

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

76.What should be the minimum interval between two successive blood donations ?

6 weeks
3 months
6 minths
8 months

77.Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers etc. ?

Iron and cadmium
Nickel and cadmium
Lead peroxide and lead
Zinc and carbon

78.Which of the following is the lightest metal ?

Mercury
Silver
Lithium
Lead

79.Man cannot survive without taking minimum amount of

Carbohydrates
fats
proteins
minerals

80.The element nickel is a

magnetic metal
radioactive metal
non magnetic metal
complex element

More General Science QUESTIONS AND ANSWERS available in next pages

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