General Knowledge - Grade 7

What is the diameter of Sun?

• 1,632,983 km

• 2,554,746 km

• 1,392,684 km

• 2,354,826 km

What is the distance between sun and earth?

• 129,100,111 km

• 92,960,000 miles

• 87,453,011 miles

• 149,600,000 km

When was the first man made object sent into space?

• 1957

• 1967

• 1942

• 1953

Which of the following is not a member of the vitamin B complex?

• Thiamine

• Riboflavin

• Folic acid

• Ascorbic acid

Fungi are plants that lack:

• Oxygen

• Carbon dioxide

• Chlorophyll

• None of these

Consider the following:

1. Mica

2. Graphite

3. Sulphur

4. Human body

Which among the above is / are electrical conductors?

• Only 1, 2 & 4

• Only 2, 3 & 4

• Only 2 & 4

• Only 2

Which of the following name of scientist is expressed as a unit of nuclear size?

• Fermi

• Angstrom

• Newton

• Tesla

Which of the following phenomena is related with the large transformers, when used for some time, become very hot and is cooled by circulating oil?

• The heating effect of current alone

• Hysteresis loss alone

• Both the heating effect of current and hysteresis loss

• Intense sunlight at noon

Which one of the following is not a chemical change ?

• Burning of coal in air

• Fermentation of sugarcane juice

• Cracking of petroleum

• Crystallization of table salt from sea water

Which metal is commonly used for making an electromagnet?

• Copper

• Cobalt

• Iron

• Nickel