10+ Orange Business Interview Questions and Answers

Methods for measuring with a micrometer and a vernier caliper

• For micrometer: Close the jaws gently around the object being measured, read the measurement from the scale, and add any additional measurements from the thimble.

• For vernier caliper: Close the jaws around the object, read the main scale measurement where the zero mark on the vernier scale aligns, then add the vernier scale measurement for precision.

• Ensure the objects being measured are clean and free from debris to ...read more

Cope and drag are the two halves of a mold used in casting processes to create a cavity for the molten metal.

• Cope is the top half of the mold, while drag is the bottom half.

• The cope and drag are typically made from sand and are used to create a cavity in which the molten metal is poured.

• After the metal has solidified, the cope and drag are separated to reveal the casting.

Pneumatic systems use compressed air to transmit power, while hydraulic systems use fluid (usually oil) to transmit power.

• Pneumatic systems use air as the working fluid, while hydraulic systems use oil or other fluids.

• Pneumatic systems are generally cleaner and easier to maintain than hydraulic systems.

• Hydraulic systems can handle higher loads and pressures compared to pneumatic systems.

• Pneumatic systems are often used in applications where cleanliness is important, such as i...read more

Different types of bearings include ball bearings, roller bearings, plain bearings, and fluid bearings.

• Ball bearings are used in applications requiring low friction and high speed, such as in wheels and conveyor belts.

• Roller bearings are suitable for heavy radial loads, such as in automotive transmissions and industrial machinery.

• Plain bearings, also known as bushings, are used in applications where lubrication is difficult, such as in hinges and pivots.

• Fluid bearings use a t...read more

Defects in casting process include porosity, shrinkage, cold shuts, misruns, and inclusions.

• Porosity: air or gas trapped in the casting

• Shrinkage: volume reduction during solidification

• Cold shuts: incomplete fusion of molten metal

• Misruns: incomplete filling of the mold cavity

• Inclusions: foreign materials trapped in the casting

Different types of cylinders include single-acting, double-acting, telescopic, and impact cylinders.

• Single-acting cylinders: Operate in one direction using fluid pressure to extend or retract the piston.

• Double-acting cylinders: Use fluid pressure to extend and retract the piston in both directions.

• Telescopic cylinders: Consist of multiple nested stages that allow for a longer stroke length in a compact design.

• Impact cylinders: Designed to deliver a high force in a short amoun...read more

Heat exchangers are devices used to transfer heat between two or more fluids, without mixing them together.

• Shell and tube heat exchanger

• Plate heat exchanger

• Double pipe heat exchanger

• Finned tube heat exchanger

• Spiral heat exchanger

Types of sand used in casting include green sand, resin sand, shell mold sand, and sodium silicate sand.

• Green sand: most commonly used type, made of silica sand mixed with clay and water

• Resin sand: mixed with resin and hardener for better surface finish and dimensional accuracy

• Shell mold sand: uses a resin-coated sand that is heated to form a shell around the pattern

• Sodium silicate sand: uses sodium silicate as a binder, good for large castings and high-temperature applicatio...read more

Casting is a manufacturing process in which a liquid material is poured into a mold, where it solidifies into the desired shape.

• Melted material is poured into a mold

• The material solidifies and takes the shape of the mold

• The mold is then removed to reveal the final product

Heat treatment is a process used to alter the physical and sometimes chemical properties of a material through heating and cooling.

• Heat treatment involves heating a material to a specific temperature, holding it at that temperature for a certain amount of time, and then cooling it at a controlled rate.

• The process can be used to increase the hardness, strength, toughness, and ductility of a material.

• Common heat treatment processes include annealing, tempering, quenching, and c...read more

Disa moulding machine operation and troubleshooting

• Ensure proper sand and binder ratio

• Check for any leaks in the hydraulic system

• Inspect the moulding chamber for any blockages or damage

• Monitor the temperature and humidity levels in the moulding area

• Regularly clean and maintain the machine to prevent breakdowns

The question is unclear and does not make sense.

• The question needs to be rephrased or clarified.

• It is unclear what is being asked.

• More information is needed to provide an answer.

There are three main types of circuit breakers: thermal, magnetic, and thermal-magnetic.

• Thermal circuit breakers operate based on the heat generated by excessive current flow.

• Magnetic circuit breakers operate based on the strength of the magnetic field produced by excessive current flow.

• Thermal-magnetic circuit breakers combine the features of both thermal and magnetic circuit breakers for better protection.

• Examples include Miniature Circuit Breakers (MCBs), Molded Case Circu...read more

Pattern gating system is a method of creating molds for casting metal parts.

• It involves creating a pattern of the desired part in a material such as wood or plastic.

• The pattern is then used to create a mold by packing sand or other material around it.

• The gating system is the network of channels and gates that allow molten metal to flow into the mold.

• The gating system must be designed carefully to ensure proper filling of the mold and avoid defects in the final part.

A major breakdown refers to a significant failure or malfunction in a system or process.

• Major breakdowns can result in complete system failure or downtime.

• Identifying the root cause of a major breakdown is crucial for preventing future occurrences.

• Examples of major breakdowns include a critical software bug causing system crashes or a hardware failure leading to data loss.

A minor breakdown is a small issue or malfunction that can be easily fixed.

• Minor breakdowns are common in automation systems and can include issues like a loose connection, a software bug, or a sensor malfunction.

• Identifying the root cause of the breakdown is important in order to implement a proper fix.

• Regular maintenance and testing can help prevent minor breakdowns from escalating into major issues.

DMM machine operation refers to the use of a digital multimeter to measure electrical values.

• DMMs are used to measure voltage, current, resistance, and continuity.

• To use a DMM, select the appropriate function and range, connect the test leads to the circuit, and read the display.

• Some DMMs also have additional features such as data logging and temperature measurement.

• It is important to follow safety precautions when using a DMM, such as wearing appropriate personal protective ...read more