Question : Which of the following is arranged in order of decreasing conductivity?

Option 1: Copper, aluminium, steel, silver

Option 2: Aluminium, silver, copper, steel

Option 3: Copper, silver, aluminium, steel

Option 4: Silver, copper, aluminium, steel

Question : The element that is not found in the blood is:

Option 1: copper

Option 2: chromium

Option 3: magnesium

Option 4: iron

Question : Galvanisation is a process in which a protective_________ coating is applied to iron to prevent it from rusting.

Option 1: nickel

Option 2: zinc

Option 3: copper

Option 4: silver

Question : Which of the following is a semiconductor?

Option 1: Silver

Option 2: Copper

Option 3: Glass

Option 4: Silicon

Question : Directions: In a certain code language, 752 means copper is strong, 276 means iron is strong and 365 means iron and copper. Find the code for and.

Option 1: 6

Option 2: 3

Option 3: 2

Option 4: 5