Stud and projection welding belong to the following category of welding________.

Consumable electrodes are used in :

In arc welding temperature generated is of the order of:

Electrode used in TIGis :

Spot welding, projection welding and or seam welding belong to the category of:

Generally used fuel gas in gas welding is:

Which of the following is an example of solid state welding?

If electric current is passed through the metals to be joined and heated to the plastic state and weld is completed by the application of pressure, the welding is known as :

The commonly used flux for brazing is :

Spot Welding is most suitable for joining parts having thickness up to :

Thermit Welding differs from other methods of welding in that-

In Thermit welding, aluminium and iron oxide are in ratio of :

In electrical resistance welding, both heat and pressure are used to effect coalescence. The pressure necessary to effect the weld varies from :

The soldering process is carried out in the temperature range :

In which type of welding molten metal is poured for joining the metals? 

In Arc welding, the arc length should be approximately equal to:

The soldering iron is heated in a gas flame until

Filler metal is used in :

Which of the following is an example of semi-automatic welding process?

Solder is essentially a 

Welding process using a pool of molten metal is 

Projection welding is :

Which welding process uses a consumable electrode?

The phenomenon of weld decay occurs in:

Oxygen to acetylene ratio in case of neutral flame is :

In arc welding, arc is created between the electrode and work by: 

In arc welding, arc is created between the electrode and work by:

For arc heating, the electrodes are made of:

In which type of welding is a pool of molten metal used?

The transformer used for AC welding sets is :

Which of the following welding processes uses non-consumable electrode

Which of the following is not a welding accessory?

The material used for coating the electrode is called :

Oxygen to acetylene ratio in case of oxidizing flame is

In resistance welding, the pressure is released 

Which of the following welding processes uses non consumable electrode?

In helium arc welding, the electrode is made of :

Chaplets are used in ________ .

What is the typical composition of the castings employed in oil-fired boilers?

For the production of quality part of the following casting method is normally employed

Foundry crucible is made up of 

Investment casting is also known as

Graphite moulds are generally used for continuous casting method because

Strength and permeability of served sand are related to 

The main advantage of shell moulding is that 

Casting process is preferred for parts having

The chief advantage of die casting is:

For mounting several patterns at a time, which of the following type of pattern is used?

Which of the following is not a casting defect?

First product of the blast furnace in the process of converting iron ore into useful metal by reduction is called ________.