Question
There is a water tank in the form of a rectangular
parallelepiped of height 1.1 m and a square base of side 2 m. If a full tank of water is drained out completely in a long pipe of circular cross-sectional area of radius 1 cm, what should be the minimum length of the pipe, in km, to hold the entire water in it? (Тakе л= 22/7)Solution
The correct answer is C
The slow corrosion of iron in the presence of moist air is known as:
Which of the following metal have the highest Melting point?
What are the constituent metals of the alloy known as 'German Silver'?
Which chemical compound is used in the indelible ink for elections?
What is the chemical name of Baking Soda ?Â
Which material is used as a moderator in a nuclear power plant that slows down the neutrons and makes them fit for causing fission?
Another name of Carborundum is
______is used to coat Galvanised Iron.
Which of the following is the best sources for Vitamin D are –
Gunpowder consists of a mixture of: