Coke is used in the manufacturing of which of the following metals?
Nickel
Chromium
Steel
Copper
Fuels are present in which of the following forms?A) SolidB) LiquidC) Gas
A and B only
B and C only
A and C only
All A, B and C
In LPG cylinder how is the gas liquefied?
By increasing the volume
By applying pressure
By increasing the temperature
By reducing the pressure
Where was the world's first oil well drilled?
Gujarat
Assam
Pennsylvania
Kabul
Heavy motor vehicles like trucks commonly run on which fuel?
Petrol
Diesel
Coal
LPG
What is the product of decomposition of animal and plant waste in the absence of air?
Gas carbon
Coal gas
Biogas
CNG
Find the odd one out.Petrol, Bitumen, Kerosene, CNG
Bitumen
Kerosene
Naphthalene balls are obtained from which of the following materials?
Carbon
Coke
Coal tar
Which of the following is the least polluting fuel for vehicles?
Which was used in railway engines to produce steam to run the engines in earlier days?
Petroleum
Natural gas
Electricity