Question
Which of the following gas usually causes explosions in
coal-mines?Solution
Methane explosions occur in coal-mines when a buildup of methane gas, a by-product of coal, comes into contact with a heat source, and there is not enough air to dilute the gas to levels below its explosion point.
A tank can be filled by pipe A in 5 hours and emptied by pipe B in 8 hours respectively. How much time will it take for the tank to be filled?
Which type of missile was the Python-5 test fired by DRDO in April 2021?
Where is the Save button in Microsoft Word?
The Sultan of Johar Cup held in which of the following countries from 22 to 29 October 2022?
The ______ was nationalised in the year 1949.
Which State is not included under the Sixth Schedule?
1.   Match List – I with List – II and select the correct answer using the codes given below the Lists.
‘The Race of my Life’ is the autobiography of which of the following sportsmen?
The First Indian Factories Act, passed in 1881, dealt primarily with:
Central government launch Swachh Vayu Sarvekshan as part of National Clean Air Programme (NCAP), It may help to reduce air pollution up to 40 per cent b...