100+ Technical Assistant Interview Questions and Answers

The main reasons for less count in bulk packing are human error, machine malfunction, and inaccurate measurements.

• Human error in counting or packaging

• Machine malfunction or error in the production line

• Inaccurate measurements or weighing of the product

• Lack of quality control or inspection

• Environmental factors such as humidity or temperature

• Improper storage or handling of the product

• Inadequate training of personnel

• Inefficient production processes

• Poor communication between depar...read more

To convert a voltmeter to an ammeter, a shunt resistor is added in parallel to the meter to measure current instead of voltage.

• Add a shunt resistor in parallel to the voltmeter to convert it to an ammeter.

• Calculate the shunt resistor value using Ohm's Law (R = V/I) based on the desired current range.

• Connect the shunt resistor in parallel to the voltmeter with proper polarity.

• Ensure the shunt resistor has a low resistance value to minimize voltage drop and accurate current mea...read more

Questions related to tablet coating defects, ALCOA, CGMP, GDP, data integrity, IQ, OQ, PQ, coating machine capacity, gun validation, shade variation, and cleaning process for product changeover.

• Tablet coating defects can include issues such as cracking, peeling, or uneven coating.

• ALCOA stands for Attributable, Legible, Contemporaneous, Original, and Accurate, which are principles for data integrity.

• CGMP stands for Current Good Manufacturing Practice, which are regulations for...read more

RS 485 is a multi-point communication standard while RS 232 is a point-to-point communication standard.

• RS 485 supports up to 32 devices on a single bus while RS 232 only supports two devices.

• RS 485 uses differential signaling for noise immunity while RS 232 uses single-ended signaling.

• RS 485 can transmit data over longer distances than RS 232.

• RS 485 is commonly used in industrial automation and control systems while RS 232 is commonly used for computer serial ports.

The main reason for improper sealing of a bottle can be due to various factors such as damaged cap, incorrect torque, or contamination.

• Damaged cap

• Incorrect torque

• Contamination

A circuit breaker is an electrical switch that automatically interrupts the flow of current when it exceeds a certain limit.

• It is used to protect electrical circuits from damage caused by overloading or short circuits.

• It works by detecting the excess current and tripping the switch to break the circuit.

• Once tripped, it can be reset manually or automatically depending on the type of circuit breaker.

• Common types include thermal, magnetic, and hybrid circuit breakers.

• Examples of...read more

Yes, the chemical concentration can change with time due to various factors such as reaction kinetics, temperature, pressure, and presence of catalysts.

• Chemical reactions can lead to changes in concentration over time

• Factors like reaction kinetics, temperature, pressure, and catalysts can influence the rate of change

• For example, in a reaction where A + B -> C, the concentration of A and B will decrease over time while the concentration of C will increase

Synchronous motors require external starting methods due to their design and characteristics.

• Synchronous motors need to be brought up to synchronous speed before they can start operating efficiently.

• Common starting methods include using a pony motor, damper winding, or a frequency converter.

• Synchronous motors are not self-starting because they operate at a fixed speed determined by the frequency of the power supply.

• The rotor of a synchronous motor must be rotating at the same...read more

I use video editing software to merge and edit the random footage into one cohesive video.

• Import all the random footage into a video editing software like Adobe Premiere Pro or Final Cut Pro.

• Arrange the footage in the desired order on the timeline.

• Trim and edit each clip as needed to create a seamless transition between them.

• Add transitions, effects, and music to enhance the overall video.

• Export the final video in the desired format for sharing or viewing.

• Examples: Adobe Prem...read more

Leak test is performed to ensure that there are no leaks in a system. It is mandatory in certain industries.

• To ensure safety and prevent accidents

• To maintain product quality and integrity

• To comply with industry regulations and standards

• Examples: automotive industry, medical devices, HVAC systems

• Different methods of leak testing: pressure decay, vacuum decay, bubble testing, tracer gas testing

Types of gear boxes, compressors, steam boilers, chillers, airdryers, and mechanical seals are commonly asked questions for Technical Assistant interviews.

• Types of gear boxes include spur, helical, bevel, worm, and planetary.

• Compressors can be classified as positive displacement or dynamic.

• Steam boilers can be categorized as fire tube or water tube.

• Chillers can be classified as air-cooled or water-cooled.

• Airdryers can be categorized as refrigerated or desiccant.

• Mechanical sea...read more

CT secondary should not be open circuited as it can lead to dangerous high voltage spikes and damage the equipment.

• Open circuiting the CT secondary can lead to dangerous high voltage spikes due to no current flow.

• It can damage the CT and other connected equipment.

• It can also lead to inaccurate measurements and incorrect readings.

• Short circuiting the CT secondary is a safer option to prevent high voltage spikes.

• Proper grounding and connection of the CT secondary is essential f...read more

Formulation technology involves the development of methods to create and optimize chemical reactions in order to produce desired products.

• Formulation technology is used in various industries such as pharmaceuticals, cosmetics, and food.

• It involves selecting the appropriate ingredients and determining the optimal ratios and processing conditions to achieve the desired product.

• Chemical reactions play a crucial role in formulation technology as they determine the properties and ...read more

DC motors and generators work on the principle of electromagnetic induction.

• DC motors convert electrical energy into mechanical energy

• DC generators convert mechanical energy into electrical energy

• Both use a commutator and brushes to switch the direction of current flow

• DC motors have a rotor and a stator, while DC generators have a stator and a rotor

• DC motors and generators have various applications in industries such as automotive, aerospace, and power generation

Recent CPUs from Intel and AMD along with compatible motherboards.

• Intel Core i9-10900K with compatible motherboard Z490 chipset

• AMD Ryzen 9 5950X with compatible motherboard X570 chipset

• Intel Core i7-10700K with compatible motherboard B460 chipset

• AMD Ryzen 7 5800X with compatible motherboard B550 chipset

Different types of speed control methods in DC motor include armature voltage control, field flux control, and armature resistance control.

• Armature voltage control: Adjusting the voltage applied to the armature to control speed.

• Field flux control: Changing the field flux to regulate the speed of the motor.

• Armature resistance control: Varying the armature resistance to adjust the speed of the motor.

A single line diagram is a simplified representation of a power system showing the main components and their connections.

• Single line diagrams show the main components of a power system such as generators, transformers, transmission lines, and distribution lines.

• Each component is represented by a simple symbol with lines connecting them to show how they are interconnected.

• For example, a generator is represented by a circle with a line extending from it to a transformer symbol....read more

Most petrol pump stations use LED lighting systems for energy efficiency and cost savings.

• LED lighting systems are commonly used in petrol pump stations

• LED lights provide bright and uniform illumination for safety and security

• LED lights are energy efficient and cost effective, saving on electricity bills

• LED lights have a longer lifespan compared to traditional lighting systems

• Some petrol pump stations may also use solar-powered lighting systems for sustainability

Customer business development involves building and maintaining relationships with customers to drive growth and increase revenue.

• Identify target customers and market segments

• Research and understand customer needs and pain points

• Develop and implement strategies to attract and acquire new customers

• Build and maintain strong relationships with existing customers

• Provide excellent customer service and support

• Offer personalized solutions and tailor-made products/services

• Regularly a...read more

The maximum number of people who can use the network when the server is down.

• Depends on the network infrastructure and backup systems in place.

• Can vary from a few to thousands depending on the organization.

• Users may experience slower speeds or limited access during server downtime.

The deflection of a simply supported beam refers to the amount of bending or displacement that occurs when a load is applied.

• The deflection of a simply supported beam depends on factors such as the length of the beam, the type of load applied, and the material properties of the beam.

• It can be calculated using various methods such as the Euler-Bernoulli beam theory or finite element analysis.

• The deflection of a simply supported beam is typically measured in terms of vertical d...read more

A 33/11kv transformer can be represented by a schematic diagram with two sets of windings and a core.

• The transformer has two sets of windings, one for the primary voltage of 33kv and the other for the secondary voltage of 11kv.

• The windings are wrapped around a core made of laminated steel to reduce energy loss due to eddy currents.

• The transformer may also have cooling fins or a cooling system to dissipate heat generated during operation.

• The transformer may have bushings for c...read more

TAN and TBN are both chemical terms used in different contexts. TAN refers to Total Acid Number, while TBN stands for Total Base Number.

• TAN measures the acidic components in a substance, while TBN measures the basic components.

• TAN is used to assess the acidity of lubricating oils, while TBN is used to measure the reserve alkalinity of the oil.

• TAN is typically expressed in milligrams of potassium hydroxide per gram of oil (mg KOH/g), while TBN is expressed in the same units.

• TA...read more

Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.

• Derivation involves conservation of energy for a fluid element along a streamline

• Applications include explaining lift in aviation, flow in pipes, and operation of carburetors

• Bernoulli's equation is used to analyze fluid flow in various engineering applications

Some popular softwares for video editing include Adobe Premiere Pro, Final Cut Pro, and Davinci Resolve.

• Adobe Premiere Pro

• Final Cut Pro

• Davinci Resolve

Arc quenching in SF6 circuit breaker involves the use of sulfur hexafluoride gas to rapidly extinguish the arc.

• SF6 gas is used as the quenching medium due to its high dielectric strength and excellent arc-extinguishing properties.

• When the circuit breaker detects an arc, the SF6 gas is rapidly injected into the arc zone to cool and extinguish it.

• The high thermal conductivity of SF6 helps in quickly dissipating the heat generated by the arc.

• SF6 gas also has a high electronegati...read more

Permanent losses in transformers refer to losses that occur continuously during operation and cannot be recovered.

• Permanent losses include core losses (eddy current and hysteresis losses) and copper losses (due to resistance in windings).

• Core losses are constant and occur even when the transformer is idle.

• Copper losses increase with the load on the transformer.

• Permanent losses result in reduced efficiency and increased heating of the transformer.

• Examples of permanent losses i...read more

The density of steel is around 7.85 g/cm³.

• Density is the measure of mass per unit volume.

• Steel is a metal alloy composed of iron and carbon.

• The density of steel varies depending on its composition and temperature.

• The density of steel is higher than that of most other materials.

• The density of steel is commonly used in engineering and construction applications.

Transformer core is laminated to reduce eddy current losses and improve efficiency.

• Laminating the core reduces eddy current losses

• Lamination helps in improving the efficiency of the transformer

• Prevents overheating of the core

• Increases the resistance of the core to magnetic flux

Two examples of excipients for delayed release are hydroxypropyl methylcellulose and ethyl cellulose.

• Hydroxypropyl methylcellulose is a water-soluble polymer that forms a protective barrier around the active ingredient, delaying its release.

• Ethyl cellulose is a water-insoluble polymer that forms a coating around the active ingredient, which dissolves slowly in the intestinal tract, delaying its release.

Oops in C# stands for Object-Oriented Programming. Its benefits include code reusability, modularity, and easier maintenance.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Code reusability: Reusing classes and objects in different parts of the program.

• Modularity: Breaking down a p...read more

I have experience with hardware troubleshooting and maintenance.

• I have built and upgraded my own desktop computer

• I have replaced components such as RAM, hard drives, and power supplies

• I have experience with troubleshooting hardware issues such as overheating and component failure

• I have worked with various hardware peripherals such as printers and scanners

A circular pier with reinforcement detail requires a structural drawing.

• The pier should be designed to withstand the loads it will bear.

• The reinforcement should be placed in a way that ensures the pier's stability.

• The drawing should include dimensions, materials, and placement of reinforcement.

• The design should comply with local building codes and regulations.

• Examples of reinforcement include steel bars, mesh, and fiber-reinforced polymer.

Type A and Type B are personality theories that categorize individuals based on certain traits and characteristics.

• Type A individuals are competitive, ambitious, impatient, and highly organized.

• Type B individuals are more relaxed, laid-back, and less stressed.

• Examples: Type A personalities may thrive in high-pressure environments like sales or finance, while Type B personalities may excel in creative fields like art or writing.

Buchholz relay is a protective device for oil-filled transformers and reactors, used to detect and prevent internal faults.

• It is a gas and oil-operated relay

• Monitors the gas accumulation in the oil tank

• Triggers an alarm or trips the transformer if gas levels exceed the set limit

• Helps in preventing catastrophic failures in transformers

Screen resolution refers to the number of pixels that can be displayed on a screen, typically represented as width x height.

• Common screen resolutions include 1920x1080 (Full HD), 2560x1440 (2K), and 3840x2160 (4K).

• Screen resolutions can vary depending on the device, such as smartphones, tablets, laptops, and desktop monitors.

• Higher screen resolutions result in sharper images and text, but may require more processing power and affect battery life.

The role of MHO relay is to provide distance protection for power lines by measuring the impedance of the line and tripping the circuit breaker if a fault is detected.

• Provides distance protection for power lines

• Measures impedance of the line

• Trips the circuit breaker if a fault is detected

Communicate openly, listen actively, collaborate on solutions, and maintain a positive relationship.

• Communicate openly with suppliers to understand the problem

• Listen actively to their perspective and concerns

• Collaborate on finding solutions that work for both parties

• Maintain a positive relationship by showing respect and appreciation

• Provide feedback on the outcome and follow up to ensure the issue is resolved

Mulesoft is a software company that provides integration and API management solutions.

• Mulesoft offers a platform for connecting applications, data, and devices across on-premises and cloud environments.

• It allows organizations to design, build, and manage APIs and integrations.

• Mulesoft's Anypoint Platform is a widely used tool for API development and integration.

• It helps businesses streamline their operations and improve connectivity between systems.

Renewable energy sources are the most eco-friendly form of energy.

• Renewable energy sources like solar, wind, hydro, geothermal, and biomass are eco-friendly.

• They do not emit harmful pollutants and do not contribute to climate change.

• Renewable energy sources are sustainable and can be replenished naturally.

• They also reduce dependence on fossil fuels and promote energy independence.

• Examples include solar panels, wind turbines, hydroelectric dams, and geothermal power plants.

TTL stands for Time to Live. It is a value in data packets that determines how long the packet can exist before being discarded.

• TTL is used to prevent data packets from circulating indefinitely in a network.

• It is commonly used in IP networks to limit the lifespan of a packet.

• TTL is decremented by one each time the packet passes through a router or gateway.

• If the TTL value reaches zero, the packet is discarded.

• TTL can be set by the sender of the packet to a specific value.

• For ...read more

The printf function is used in C programming to print formatted output to the console.

• printf function takes a format string as the first argument, followed by any additional arguments to be printed

• Format specifiers like %d, %f, %s are used to specify the type of data to be printed

• Example: printf("Hello, %s! Your age is %d", name, age);

There are various types of threading machines available in the market.

• The most common types of threading machines are manual threading machines, automatic threading machines, and CNC threading machines.

• Manual threading machines require manual intervention for threading operations.

• Automatic threading machines are equipped with sensors and can perform threading operations automatically.

• CNC threading machines are computer-controlled and can perform threading operations with high...read more

Lighting semiconductors are electronic devices that emit light when an electric current is passed through them.

• Lighting semiconductors are commonly used in LED lights.

• They are made of materials such as gallium arsenide, gallium nitride, and silicon carbide.

• When an electric current is passed through the semiconductor, it excites the electrons and causes them to emit photons.

• The color of the light emitted depends on the material used in the semiconductor.

• Semiconductors are used...read more

Different types of patents include utility patents, design patents, and plant patents.

• Utility patents are the most common type and cover new and useful processes, machines, articles of manufacture, or compositions of matter.

• Design patents protect the ornamental design of functional items.

• Plant patents are granted for new and distinct varieties of plants.

• Other types of patents include provisional patents, non-provisional patents, and international patents.

There are several types of PLCs, including modular, compact, rack-mounted, and software-based PLCs.

• Modular PLCs are designed to be expandable and customizable.

• Compact PLCs are smaller and more cost-effective than modular PLCs.

• Rack-mounted PLCs are designed to be mounted in a standard equipment rack.

• Software-based PLCs run on a computer and use specialized software to emulate a physical PLC.

• Other types of PLCs include safety PLCs, high-speed PLCs, and distributed PLCs.

• The type...read more

The wire diagram connects the PID controller to the Solid State Relay (SSR) and then to the heaters.

• Connect the output of the PID controller to the input of the SSR.

• Connect the output of the SSR to the heaters.

• Ensure proper grounding and insulation for safety.

• Use appropriate wire gauge based on the current requirements.

• Label all connections for easy troubleshooting.

• Consider using color-coded wires for easy identification.