General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part18 : 66 to 70

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

66.Who among the following does not have a chemical elements named after him ?

Albert Einstein

Enrico Fermi

Isaac Newton

Mendeleef

67.Which of the following alloys is used for making magnets ?

Duralumin

Stainless steel

alnico

Magnalium

68.Given below are two statements, labeled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ? 1. Assertion (A) : A diamond sparkles more than a glass imitation cut to the same shape. 2. Reason (R) : The refractive index of diamond is less than that of glass.

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

69.What fraction of a floating iceberg remains inside water ?

0.5

0.7

0.8

0.9

70.The stars twinkle in the night because

they emit light intermittently.

the stars atmosphere absorbs light intermittently.