20+ Nisa Industrial Services Interview Questions and Answers

Controls required to safeguard organizations from perimeter to end points include firewalls, antivirus software, encryption, access controls, and regular security audits.

• Firewalls to monitor and control incoming and outgoing network traffic

• Antivirus software to detect and remove malware

• Encryption to protect sensitive data in transit and at rest

• Access controls to limit user permissions and restrict unauthorized access

• Regular security audits to identify and address vulnerabilit...read more

The least count of a measuring instrument is the smallest value that can be measured by the instrument.

• The least count is determined by the smallest division on the scale of the instrument.

• It represents the precision or accuracy of the instrument.

• For example, a ruler with millimeter divisions has a least count of 1 mm.

• A Vernier caliper with divisions up to 0.1 mm has a least count of 0.1 mm.

• The least count is important in ensuring accurate measurements and minimizing errors.

The well foundation executed was a caisson type and the sinking procedure involved controlled excavation and filling with concrete.

• The well foundation executed was a caisson type.

• The sinking procedure involved controlled excavation.

• The well foundation was filled with concrete.

• The sinking procedure ensured stability and proper alignment of the foundation.

Network security involves implementing measures to protect the organization's network from unauthorized access or attacks.

• Implementing firewalls to monitor and control incoming and outgoing network traffic

• Using encryption to secure data transmission over the network

• Regularly updating software and systems to patch vulnerabilities

• Implementing strong authentication methods such as multi-factor authentication

• Conducting regular security audits and assessments to identify and addre...read more

Single phase induction motor is not self-starting due to the absence of rotating magnetic field. Different methods of starting include capacitor start, split-phase, shaded pole, and reluctance start.

• Single phase induction motor lacks rotating magnetic field

• Capacitor start uses a capacitor to create a phase shift and start the motor

• Split-phase uses a starting winding to create a phase shift

• Shaded pole uses a shading coil to create a phase shift

• Reluctance start uses a centrifug...read more

I will ensure the security of end points and applications by implementing strong access controls, regular security updates, and continuous monitoring.

• Implementing strong access controls to restrict unauthorized access to end points and applications

• Regularly updating security patches and software to protect against vulnerabilities

• Implementing encryption to protect data in transit and at rest

• Utilizing endpoint detection and response (EDR) solutions for real-time monitoring and ...read more

Blocked rotor test is performed on a 3-phase induction motor to determine its impedance and calculate its locked rotor current.

• The motor is connected to a 3-phase supply with the rotor blocked.

• The voltage and current are measured and used to calculate the motor's impedance.

• The locked rotor current can be determined from the impedance.

• The test helps in assessing the motor's performance and identifying any faults or issues.

Information security refers to the practice of protecting information from unauthorized access, use, disclosure, disruption, modification, or destruction.

• Information security involves implementing measures to ensure the confidentiality, integrity, and availability of data.

• Common standards in information security include ISO/IEC 27001, NIST Cybersecurity Framework, and PCI DSS.

• Examples of information security measures include encryption, access control, firewalls, and regular ...read more

Tractors have larger rear wheels for better traction, stability, and weight distribution.

• Larger rear wheels provide better traction on uneven or slippery surfaces.

• The weight of the tractor is primarily distributed towards the front due to the heavy engine and attachments. Larger rear wheels help balance the weight distribution.

• The larger surface area of the rear wheels helps in reducing ground pressure, preventing sinking or getting stuck in soft soil.

• The increased diameter o...read more

Different methods of resistance measurement and their ranges

• Low resistance measurement: 4-wire Kelvin method, range 0.1 μΩ to 1 Ω

• Medium resistance measurement: 2-wire method, range 1 Ω to 1 MΩ

• High resistance measurement: Megohmmeter method, range 1 MΩ to 10 TΩ

• Other methods include 3-wire method and 4-wire guarded method

• Measurement accuracy depends on the method used and the quality of the equipment

Lightning arresters are used in transmission lines to protect the equipment and infrastructure from damage caused by lightning strikes.

• Lightning arresters divert the high voltage surge caused by lightning strikes to the ground, preventing it from damaging the transmission lines.

• They provide a low-resistance path for the lightning current to flow, reducing the risk of electrical breakdown and flashovers.

• Lightning arresters help in maintaining the insulation levels of the trans...read more

A power flow schematic diagram for a tractor.

• Start with the engine as the power source

• Show the power flow to the transmission

• Include the power flow to the wheels

• Illustrate any additional components such as hydraulic systems or electrical systems

The steel bridge executed was a cable-stayed bridge.

• The bridge was constructed using steel cables to support the deck.

• Cable-stayed bridges are known for their aesthetic appeal and structural efficiency.

• Examples of famous cable-stayed bridges include the Millau Viaduct in France and the Russky Bridge in Russia.

Risk is the potential for loss or harm resulting from a particular action or decision.

• Risk is inherent in all aspects of life and business.

• It involves uncertainty and the possibility of negative outcomes.

• Risk can be managed through strategies such as risk assessment, mitigation, and transfer.

• Examples of risks include financial risk, operational risk, and reputational risk.

PERT & CPM are project management techniques used to plan, schedule, and control complex projects.

• PERT stands for Program Evaluation and Review Technique, while CPM stands for Critical Path Method.

• PERT is used for projects with high uncertainty and risk, while CPM is used for projects with well-defined activities and timelines.

• Both techniques involve breaking down a project into smaller tasks, estimating the time and resources required for each task, and creating a network di...read more

The question is asking about the sequence of psc I gider.

• PSC stands for Primary Sclerosing Cholangitis, a chronic liver disease.

• The question is likely asking about the order or progression of symptoms or events related to PSC.

• Examples of possible pointers could include the stages of PSC, the diagnostic process, or the treatment options.

Confirming torquing involves verifying the accuracy of applied torque.

• Confirming torquing is essential to ensure the proper tightening of fasteners.

• It involves using torque wrenches or other torque measuring devices.

• Verification can be done by comparing the applied torque with the specified torque value.

• Visual inspection of fasteners can also help confirm torquing.

• Regular calibration of torque tools is necessary for accurate confirmation.

Defects in welding are imperfections or flaws that occur during the welding process.

• Common defects include porosity, undercutting, incomplete fusion, and cracks.

• Porosity is caused by gas entrapment and can be mitigated by using proper shielding gas and cleaning the base metal.

• Undercutting is a groove formation at the weld toe and can be reduced by adjusting welding parameters.

• Incomplete fusion occurs when the weld metal does not properly fuse with the base metal and can be pr...read more

QA focuses on preventing defects, while QC focuses on identifying and fixing defects.

• QA stands for Quality Assurance and QC stands for Quality Control.

• QA is a proactive process that focuses on preventing defects by establishing processes and standards.

• QC is a reactive process that focuses on identifying and fixing defects through inspections and testing.

• QA involves activities like creating test plans, conducting audits, and implementing quality management systems.

• QC involves ...read more

Checklist for inspection can be made by identifying key inspection points, setting inspection frequency, including relevant regulations and standards, and ensuring clear documentation.

• Identify key inspection points based on equipment or process being inspected

• Set inspection frequency based on criticality and risk factors

• Include relevant regulations, standards, and best practices in the checklist

• Ensure clear documentation of inspection findings, actions taken, and follow-up re...read more

Performance test of elastomeric bearings evaluates their ability to withstand load, deformation, and environmental conditions.

• Performance test assesses the load-carrying capacity of elastomeric bearings.

• It measures the deformation and displacement under different loads.

• Tests evaluate the behavior of bearings under various environmental conditions like temperature and moisture.

• Performance tests ensure the durability, stability, and functionality of elastomeric bearings.

• Example...read more

Sub grade FDD is required as per Morth.

• FDD stands for Field Density Test.

• Morth refers to the Ministry of Road Transport and Highways.

• Sub grade FDD is necessary to determine the compaction and strength of the sub grade soil.

• It helps in ensuring the stability and durability of the road pavement.

• FDD results are used to assess the quality of the sub grade and make necessary improvements.

CBR test is a laboratory test used to determine the strength and bearing capacity of soil.

• CBR stands for California Bearing Ratio.

• It is a measure of the relative strength of a soil sample.

• The test involves compacting a soil sample in a mold and subjecting it to a standard load.

• The load penetration is measured and compared to standard values.

• CBR values are used in the design of pavements and other civil engineering structures.

• Higher CBR values indicate stronger and more stable...read more

Stress and strain are related as stress is the force applied per unit area, while strain is the deformation caused by stress.

• Stress is the force applied per unit area, while strain is the deformation caused by stress.

• Stress is measured in units of force per unit area, such as pounds per square inch (psi) or pascals (Pa).

• Strain is measured as the change in length or shape of a material due to stress, and is typically expressed as a percentage or in units of length per length.

• T...read more