Quiz-IME 2025-26

Which of the following is a renewable energy source?

• Coal

• Oil

• Solar energy

• Natural gas

What is the working fluid in a thermal power plant?

• Water/Steam

• Air

• Oil

• Mercury

In which of these processes is a conductive workpiece necessary?

• USM

• LBM

• ECM

• EBM

The EBM process is carried out in

• Open atmosphere

• A vacuum chamber

• High-pressure chambers

• Submerged conditions

Which of the following is a ferrous metal?

• Aluminium

• Copper

• Steel

• Brass

An example of a non-ferrous alloy is:

• Cast iron

• Stainless steel

• Mild steel

• Bronze

Which of the following is a common flux used in soldering?

• Zinc oxide

• Rosin

• Alumina

• Boron carbide

Welding differs from soldering and brazing in that it:

• Does not use heat

• Always requires flux

• Joins metals by melting the base materials

• Uses capillary action to join metals

The function of an internal combustion (IC) engine is to:

• Convert chemical energy into electrical energy

• Convert heat energy into mechanical energy

• Convert mechanical energy into heat energy
  
  

• Convert thermal energy into chemical energy

Which of the following is the primary difference between a petrol and a diesel engine?

• Diesel engines use spark plugs, while petrol engines do not

• Petrol engines compress air only, while diesel engines compress air-fuel mixtures

• Diesel engines use compression ignition, while petrol engines use spark ignition

• Petrol engines are always more efficient than diesel engines