IBM Interview Questions and Answers

Sand mould casting is a process where a sand mold is created to pour molten metal into, allowing it to cool and solidify into the desired shape.

• Create a pattern of the object to be cast in metal

• Pack sand around the pattern to create a mold

• Remove the pattern, leaving a cavity in the sand mold

• Pour molten metal into the cavity

• Allow the metal to cool and solidify

• Break the sand mold to reveal the metal casting

There are several types of gears used in mechanical systems.

• Spur gears: used to transmit motion between parallel shafts

• Helical gears: similar to spur gears but with angled teeth for smoother operation

• Bevel gears: used to transmit motion between intersecting shafts

• Worm gears: used for high reduction ratios and self-locking capabilities

• Planetary gears: used in gearboxes to achieve different gear ratios

• Rack and pinion gears: convert rotational motion into linear motion

• Internal g...read more

Manufacturing engineering involves designing, implementing, and improving manufacturing processes to produce products efficiently.

• Involves designing and optimizing manufacturing processes

• Focuses on improving efficiency and quality of production

• Utilizes tools like CAD software, robotics, and automation

• Examples include designing assembly lines, implementing lean manufacturing principles

Availability may be less in an organization due to various reasons.

• Lack of skilled workforce

• Insufficient resources

• Inefficient processes

• High employee turnover

• Technological limitations

• Supply chain disruptions

• Market demand fluctuations

• Natural disasters or emergencies

• Competitive pressures

• Poor management or leadership

A vernier caliper typically has two scales - the main scale and the vernier scale.

• A vernier caliper usually has a count of 0 to 150 on the main scale.

• The vernier scale has divisions that allow for more precise measurements.

• The count on the vernier scale can range from 0 to 9, depending on the caliper's accuracy.

• By aligning the zero on the vernier scale with the main scale, measurements can be taken accurately.

Travelling grate is a type of furnace where fuel moves on a conveyor belt through different zones for efficient combustion.

• Travelling grate helps in even distribution of fuel for uniform combustion.

• It consists of different zones like drying, preheating, combustion, and cooling.

• Examples of travelling grate systems include biomass boilers and waste incinerators.