Nasser S. Al Hajri Corporation Interview Questions, Process, and Tips

Q1. Why did you leave your previous company?
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Q2. What was your previous salary?
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Q1. Basic safety questions
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Q2. Technical safety based questions
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Q3. Scenarios based questions
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Q1. S W L .W L L
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Q2. Shef work load and work load limit
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Q3. Bow shaickl D shaickl
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Q4. Webbseling safety features
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Q5. Insfection and color code
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Q1. What are isometric drawing and use
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Isometric drawing is a 3D drawing technique used in piping to show a clear representation of piping layout.
• Isometric drawing is a type of 3D drawing that represents a 3D object in two dimensions.

• It is commonly used in piping to show the layout of pipes, fittings, and other components in a clear and detailed manner.

• Isometric drawings help in visualizing how components fit together and the overall layout of a piping syst...read more
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Q2. What is Types of drawing Isometric
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Isometric drawings are 3D drawings that show a three-dimensional object in a two-dimensional format.
• Isometric drawings use three axes (x, y, z) to represent the object in 3D space.

• All three axes are equally angled from each other, typically at 120 degrees.

• Isometric drawings are commonly used in engineering and construction to visualize objects and structures.

• Examples of isometric drawings include piping layouts, archit
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Quality tool box talk safe work on site

Piping metal code cs,SS,ltcs and alloys

Q1. How much group work in side
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Q2. Civil, mechanical, electrical
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Q3. All work place clean and safe
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Q4. Permit after work start
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All types of piping fabrication and erection installation in site

Q1. All reports submit in hr department
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Q1. What is Instrument Technician
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An Instrument Technician specializes in maintaining and calibrating instruments used in various industries.
• Responsible for installing, maintaining, and repairing instrumentation systems.

• Examples include pressure gauges, temperature sensors, and flow meters.

• Works in industries like oil and gas, manufacturing, and pharmaceuticals.

• Ensures compliance with safety and regulatory standards.

• Utilizes diagnostic tools to trouble
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Q2. What is Instrument cable
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Instrument cable is a specialized cable designed for transmitting signals in instrumentation and control systems.
• Used for connecting sensors, transmitters, and control devices.

• Typically shielded to reduce electromagnetic interference (EMI).

• Common types include twisted pair, coaxial, and multi-conductor cables.

• Examples include 4-20 mA signal cables and thermocouple extension wires.

• Designed to maintain signal integrity o
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Q3. What is control valve
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A control valve regulates fluid flow by varying the size of the flow passage as directed by a controller.
• Control valves are essential in process control systems.

• They can be operated manually or automatically.

• Common types include globe, ball, and butterfly valves.

• Used in industries like oil & gas, water treatment, and HVAC.

• Example: A globe valve can precisely control flow rates.
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Q4. What is a temperature
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Temperature is a measure of the average kinetic energy of particles in a substance, indicating how hot or cold it is.
• Temperature is measured in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K).

• It affects physical properties like density and viscosity; for example, water expands when heated.

• Thermometers are common instruments used to measure temperature.

• In weather, temperature influences climate and can affect ecosy...read more
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Q5. What is flow
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Flow refers to the movement of fluids, gases, or energy through a system, characterized by rate and direction.
• Flow can be laminar or turbulent; laminar flow is smooth and orderly, while turbulent flow is chaotic.

• In fluid dynamics, flow rate is measured in volume per time, e.g., liters per minute.

• Examples include water flowing through pipes, air moving through ducts, or blood circulating in the body.

• Flow can be influenc...read more
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Q6. What is level
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Level refers to the measurement of the height of a substance, often used in various industries for monitoring and control.
• Level can be measured in tanks, silos, and other containers to determine how much material is present.

• Common level measurement techniques include float switches, ultrasonic sensors, and radar level transmitters.

• For example, a float switch can activate a pump when the water level in a sump pit rises ...read more
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