HTET Exam - Level 2 Tgt - Combustion And Fuels

In the beginning, Home Science was referred to as :

The middle zone of a candle flame is also called the zone of ................ combustion.

Which of the following statement is correct with respect to flame?

Which of the following fuel has the highest calorific value ?

The correct sequence of number of carbon atoms present in (a) compressed natural gas, (b) diesel and (c) petrol is :

A brown coal, low in carbon content (60-70%), high in moisture content and generally used in power plants to produce electricity is :

Which of the following is used in manufacturing of steel?