10+ Grasim Industries Interview Questions and Answers

Questions related to tyres, wear, and pressure for a Service Engineer position.

• Tyres are made of rubber and provide traction for vehicles

• There are two types of wear: normal wear and irregular wear

• NSD stands for 'Newly Standardized Dimension'

• Wear is the gradual loss of material from the surface of an object

• PSI stands for 'Pounds per Square Inch'

• Types of tyres include: summer, winter, all-season, performance, and off-road

• Types of tyre structure include: bias-ply, radial, and be...read more

Use a tire gauge to measure the pressure and depth of the tire tread to determine the tire number.

• Use a tire gauge to measure the pressure of the tire.

• Measure the depth of the tire tread using a tread depth gauge.

• Refer to the tire manufacturer's guide to determine the tire number based on the pressure and tread depth measurements.

• Alternatively, take a picture of the tire number and use it for reference.

PSI measurement instruments include pressure gauges, pressure transducers, and pressure sensors.

• Pressure gauges

• Pressure transducers

• Pressure sensors

There are various types of trucks available in India, including heavy-duty trucks, medium-duty trucks, light-duty trucks, and specialized trucks.

• Heavy-duty trucks: used for long-haul transportation of goods, such as Volvo FH, Tata Prima

• Medium-duty trucks: used for local transportation and delivery, such as Ashok Leyland Boss, Mahindra Furio

• Light-duty trucks: used for small-scale transportation and delivery, such as Tata Ace, Mahindra Bolero Pickup

• Specialized trucks: used for ...read more

Heel and toe wear in a tyre can be identified by examining the tread pattern.

• Heel wear occurs on the outside edge of the tyre tread and is caused by excessive cornering.

• Toe wear occurs on the inside edge of the tyre tread and is caused by misalignment of the wheels.

• To check for heel and toe wear, examine the tread pattern and look for uneven wear on the edges of the tread.

• If heel and toe wear is identified, it is important to address the underlying cause to prevent further da...read more

There are three types of wear: abrasive, adhesive, and surface fatigue.

• Abrasive wear occurs when hard particles or surfaces rub against a softer surface, causing material loss.

• Adhesive wear happens when two surfaces stick together and then separate, causing material to be pulled off.

• Surface fatigue wear occurs when repeated stresses cause cracks or other damage to the surface of a material.

• Examples of wear include erosion of a riverbed due to abrasive wear, scuffing of a shoe...read more

There are numerous tyre brands in India, with both domestic and international companies competing in the market.

• There are over 40 tyre brands operating in India.

• Some popular tyre brands in India include MRF, CEAT, Apollo, Bridgestone, Michelin, and JK Tyre.

• These brands offer a wide range of tyres for various vehicles including cars, motorcycles, trucks, and buses.

The type of tread pattern in a tire affects its performance on different road surfaces and in various weather conditions.

• Tread patterns can be categorized into different types such as symmetrical, asymmetrical, directional, and multi-directional.

• Symmetrical tread patterns provide good all-around performance and are commonly found on standard passenger tires.

• Asymmetrical tread patterns have different tread designs on the inner and outer sides of the tire to optimize performanc...read more

There are mainly four types of tyres: summer, winter, all-season, and performance.

• Summer tyres are designed for warm weather and provide good grip on dry roads.

• Winter tyres are made of a softer rubber compound to maintain flexibility in cold temperatures.

• All-season tyres are a compromise between summer and winter tyres, suitable for moderate weather conditions.

• Performance tyres offer enhanced grip and handling for high-performance vehicles.

Standard PSI in truck for loading or unloading varies depending on the type of truck and the weight of the load.

• Standard PSI for loading or unloading in trucks typically ranges from 80-100 PSI.

• It is important to check the manufacturer's recommendations for the specific truck and load being transported.

• Overinflating or underinflating tires can lead to safety hazards and decreased efficiency.

• For example, a heavy-duty truck carrying a heavy load may require higher PSI compared t...read more