List of top Mechanical Engineering Questions on Casting, Forming and Joining Processes

While designing the gating system, the ratio of 1 : 2 : 4 represents:

The extrusion process used to manufacture the short length components like paste tubes, gun shells etc., is

In casting process, the covering passage is used for feeding the liquid metal into the mould to

The commonly used casting process for producing intricate and detailed sculptures is:

The phenomenon where a metal part tends to partially return to its original shape after the forming tool is removed is known as

In MIG welding process, the commonly used gases for shielding are

The welding process used for joining railway tracks is

A low projection on the drag surface of a casting commencing near the gate by erosion of sand due to the high velocity liquid metal in the bottom gating. This defect is known as:

The shrinkage allowance has been provided on the pattern to compensate the shrinkage when:

Assertion (A): In Electrical Discharge Machining (EDM), fragile parts can be machined without distortion because no mechanical work is involved.
Reason (R): The surface finish of the finished components made using EDM is poor because of presence of small craters.

The DC power source for arc welding has the characteristics \( 3V + I = 240 \), where 'V' is the voltage in volts and 'I' is the current in amperes. For maximum power at the electrode, voltage should be set at:

Which of the following is a solid state joining process?

Centre-line feeding resistance CFR indicates the difficulty of feeding a given alloy in a mould Normally feeding is considered to be difficult if

Under ideal conditions in drawing operation maximum possible reduction of area in one pass is: