Hindalco Industries
10+ Prism Architects Interview Questions and Answers
Q1. Thermal power plant is boiler maintenance and boul mill explain
Boiler maintenance and bowl mill are crucial for the efficient functioning of a thermal power plant.
Boiler maintenance involves regular cleaning, inspection, and repair of the boiler to ensure its safe and efficient operation.
Bowl mill is a type of grinding mill used in power plants to grind coal and convert it into a powder form that can be burned more efficiently.
Regular maintenance of bowl mills is necessary to ensure their proper functioning and prevent breakdowns.
Mainten...read more
Q2. What causes are responsible for over-heating of Commutator in a DC motor?
Over-heating of Commutator in a DC motor can be caused by factors like excessive current, poor ventilation, dirty environment, and worn-out brushes.
Excessive current flowing through the motor can cause the commutator to overheat.
Poor ventilation around the motor can lead to inadequate cooling, resulting in overheating.
A dirty environment can cause dust and debris to accumulate on the commutator, hindering heat dissipation.
Worn-out brushes can create excessive friction and res...read more
Q3. What will happen if a shunt motor is directly connected to the supply line?
The shunt motor will run at dangerously high speeds and may get damaged.
The motor will run at its no-load speed, which is much higher than its rated speed.
This can lead to overheating and mechanical stress on the motor components.
The motor may get damaged or fail prematurely if directly connected to the supply line.
Q4. What are causes of hot bearings?
Causes of hot bearings include lack of lubrication, overloading, misalignment, and contamination.
Lack of lubrication: Insufficient or degraded lubricant can cause increased friction and heat.
Overloading: Excessive load on the bearing can lead to overheating.
Misalignment: Improper alignment of the bearing can cause it to operate under stress and generate heat.
Contamination: Foreign particles or debris in the bearing can hinder smooth operation and cause overheating.
Q5. What type of permit is required?
A building permit is required for construction projects to ensure compliance with building codes and regulations.
Building permit is required for new construction, renovations, alterations, and additions
Permit may also be needed for demolition, electrical work, plumbing work, and HVAC installations
Permit requirements vary by location and type of project
Examples: building a new house, adding a deck, finishing a basement
Q6. 1-Relief valve digram and it's function
A relief valve is a safety device used to control or limit pressure in a system by releasing excess pressure.
Relief valves are commonly used in steam boilers, pressure vessels, and pipelines.
They are designed to open and release excess pressure when the pressure inside the system exceeds a certain limit.
This helps prevent damage to the system and ensures the safety of personnel working with the system.
Relief valves can be set to open at a specific pressure or temperature, dep...read more
Q7. Process flow digram of plate rolling mill
A process flow diagram of a plate rolling mill
Raw materials are loaded onto the mill
The plate is rolled to the desired thickness and length
The plate is then cooled and cut to size
The finished product is inspected for quality
The product is then packaged and shipped to customers
Q8. Types of engine with thier origin country
Various types of engines and their origin countries
Internal Combustion Engine - Germany
Steam Engine - United Kingdom
Jet Engine - United States
Electric Engine - Various countries
Rocket Engine - Various countries
Q9. What is Ohm's law?
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
Ohm's law is represented by the formula V = I * R, where V is voltage, I is current, and R is resistance.
It helps in calculating the current flowing through a circuit when the voltage and resistance are known.
It can also be used to determine the resistance of a component when the voltage and curr...read more
Q10. SPL meaning and SEL meaning
SPL stands for Sound Pressure Level and SEL stands for Sound Exposure Level.
SPL is a measure of sound intensity relative to a reference level.
SEL is a measure of sound exposure over a period of time, typically in decibels.
Both SPL and SEL are commonly used in the field of acoustics and noise control.
Q11. Tharmal power plant??
A thermal power plant is a facility that generates electricity by converting heat energy into electrical energy.
Thermal power plants use fossil fuels, nuclear energy, or renewable sources like solar or geothermal energy to generate heat.
The heat is used to produce steam, which drives a turbine connected to a generator to produce electricity.
Examples of thermal power plants include coal-fired power plants, gas-fired power plants, and nuclear power plants.
Q12. Turbine generator work
Turbine generator work involves converting mechanical energy into electrical energy using steam or water.
Turbine generators use steam or water to rotate a turbine connected to a generator
The rotating turbine spins magnets inside the generator, creating an electric current
The electric current is then transmitted through power lines for use in homes and industries
Q13. Density of slurry
Density of slurry is the mass of the slurry per unit volume.
Density of slurry is typically measured in kg/m^3 or lb/ft^3.
It is calculated by dividing the mass of the slurry by its volume.
The density of slurry can vary depending on the concentration of solids in the liquid.
For example, a slurry with a high concentration of solids will have a higher density.
Q14. Whit is red area
The red area typically refers to a section or region that is highlighted or marked in the color red.
Red area can indicate danger or warning.
In engineering, red areas on diagrams or blueprints may signify areas of high risk or critical components.
Examples: red area on a map indicating a fire hazard zone, red area on a circuit diagram highlighting a high voltage section.
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