NACL Interview Questions and Answers

Q1. What is the working principle of shaft balancing in accordance with ISO 21940-11 and ISO 21940-12 standards?
Ans. 
Shaft balancing in accordance with ISO 21940-11 and ISO 21940-12 standards involves reducing vibrations by adjusting the mass distribution along the shaft.
• Shaft balancing aims to minimize vibrations in rotating machinery by adjusting the mass distribution along the shaft.

• ISO 21940-11 specifies the balancing process for rigid rotors, while ISO 21940-12 covers the balancing of flexible rotors.

• Balancing involves adding or...read more
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Q2. What does equipment alignment entail?
Ans. 
Equipment alignment involves ensuring that all components of a machine are properly positioned and oriented to work efficiently and accurately.
• Ensuring that all parts of the equipment are correctly positioned relative to each other

• Checking and adjusting the alignment of shafts, belts, gears, and other components

• Using precision tools such as laser alignment systems to achieve accurate alignment

• Proper alignment helps pre...read more
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Q3. Following ASME section ix
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Q4. Following ASME section v
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Q5. Following ASME B31.3
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Q1. Heat transfer operation Fluid Mechanics Mass Transfer operation Chemical engineering Thermodynamics
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Q2. Heat transfer operation Mass Transfer operation Chemical engineering Thermodynamics
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Q3. Fertilizer technology
Ans. 
Fertilizer technology involves the production, formulation, and application of fertilizers to improve crop yield and quality.
• Fertilizer production involves the extraction of raw materials, such as nitrogen, phosphorus, and potassium, and the synthesis of compounds like ammonia and urea.

• Formulation of fertilizers includes blending different nutrients to create specific nutrient ratios suitable for different crops and so...read more
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Q4. Heat transfer operation
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Q5. Fluid mechanics
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Q1. Chemical engineering Thermodynamics Fluid Mechanics Mass Transfer operation
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Q2. Heat transfer operation Fluid Mechanics Mass Transfer operation Chemical engineering Thermodynamics
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Basic instrumentation question easy crack by study department syllabus alone

10 member in one gd and 2 hr give general topic like" ai affect in human job "

Q1. Difference between analog and digital signals
Ans. 
Analog signals are continuous and can take any value within a range, while digital signals are discrete and can only take specific values.
• Analog signals have infinite possible values, while digital signals have a finite number of possible values.

• Analog signals are more susceptible to noise and interference, while digital signals are more resistant.

• Examples of analog signals include sound waves and temperature readings,...read more
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Q2. Explain your project
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Q3. What are weight measuring instruments
Ans. 
Weight measuring instruments are devices used to measure the weight of an object or substance.
• Common weight measuring instruments include scales, balances, and load cells.

• Scales are used for measuring the weight of objects in various settings such as kitchens, laboratories, and industries.

• Balances are used for precise measurements in scientific experiments and research.

• Load cells are used in industrial applications to ...read more
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Q4. What is stain gauge
Ans. 
A strain gauge is a device used to measure the strain or deformation of an object by detecting changes in resistance.
• Strain gauges are often used in engineering applications to monitor the structural integrity of buildings, bridges, and machinery.

• They work on the principle that the electrical resistance of a wire changes when it is stretched or compressed.

• The strain gauge is attached to the object being measured and as...read more
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Q5. How i/p convertor works
Ans. 
An i/p converter converts input signals into a different format for processing or transmission.
• An i/p converter takes an input signal and converts it into a different format, such as analog to digital or vice versa.

• It may involve sampling the input signal at regular intervals and quantizing it into discrete values.

• Examples include analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
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Q6. How flapper nozzle works
Ans. 
A flapper nozzle is a type of valve that opens and closes to control the flow of a fluid or gas.
• Flapper nozzle consists of a flap or disc that moves up and down to regulate the flow

• When the flap is lifted, fluid or gas can pass through the nozzle

• When the flap is closed, the flow is stopped

• Commonly used in fuel dispensers, fire sprinkler systems, and irrigation systems
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Q7. Why do you choose instrumentation
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Q1. Brief about your self
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Q2. Lookup formulas if condition and conditional formatting
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Q1. What your working
Ans. 
Accounting, Taxation, GST Fill, TDS
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Q2. Taxation working
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Q3. Indirect taxation
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Q4. Balance sheet preparation
Ans. 
Balance sheet prepared yes
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Q5. Accounting on which software
Ans. 
Tally prime, software used
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Mat dbms os mostly mat

3 question in 1.5 hours hard questions

Q1. Implement priority queue
Ans. 
Priority queue is a data structure that stores elements based on their priority.
• Use a binary heap to implement a priority queue.

• Elements are inserted based on priority and removed in order of priority.

• Example: Inserting elements with priority values and removing them in sorted order.
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Q2. Implement stack and queue
Ans. 
Implement stack and queue using arrays
• For stack, use array and implement push and pop operations

• For queue, use array and implement enqueue and dequeue operations

• Example: Stack - push(1), push(2), pop() -> returns 2

• Example: Queue - enqueue(1), enqueue(2), dequeue() -> returns 1
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Q1. What is relative volatility
Ans. 
Relative volatility is a measure of how easily a component in a mixture can be separated from other components through distillation.
• Relative volatility is calculated as the ratio of the vapor pressures of the two components being separated.

• It is used in distillation processes to determine the efficiency of separation.

• Higher relative volatility indicates easier separation of components.

• For example, in the separation of ...read more
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Q1. What is Distillation
Ans. 
Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
• Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The components with lower boiling points will vaporize first and be collected, while the components with higher boiling points will remain in liquid form.

• Examples of distillation include...read more
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Q2. Difference absorber Column and strippers column
Ans. 
Absorber column absorbs a gas into a liquid, while a stripper column removes a component from a liquid.
• Absorber column is used to absorb a gas into a liquid, while a stripper column is used to remove a component from a liquid.

• Absorber column operates at a higher pressure than the stripper column.

• Absorber column is used in processes like gas sweetening, while stripper column is used in processes like solvent recovery.

• Ex...read more
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Q1. Back office & office codinater
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Q2. I want back office working
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Q3. I want store incharge and email reply chat tracking scaning and office filing all record manten
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Q4. I want dey ya night shift no problm but duty timing in fix no issu in any hard work
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