Quality Assurance Interview Questions | Qc Interview Questions

Interview Questions for QA / QC – Electrical & Instrumentation:

General interview questions:

1. Define ITP. 

Answer:

All inspections shall be done on the basis of approved ITP (Inspection Test Plan) which consists of the following sections;

• Activity Description
• Responsible Person
• Quality Inspection Activity
• Reference Drawings and Specifications
• Acceptance Criteria
• Verifying Documents (ITR’s)
• Intervention Points

2. Explain Intervention Points.

Answer:

W: Witness, S: Surveillance, A: Approval, M: Monitoring, R: Review, H: Hold

3. What is Method Statement?

Answer:

This is construction document on which basis construction work shall be performed at site.

4. What is NCR, CAR & PAR ?

Answer:

NCR: Non Conformance Report 

CAR: Corrective Action Report 

PAR: Preventive Action Report 

5. What is MAR and MRIR? 

Answer: 

MAR: Material Approval Request 

MRIR: Material Receiving Inspection Report

Difference between B-Tech Pass/Hons and BSC Engineering

Electrical Related Questions:

1. What you knows about International Standards like IEEE ,IEC, NEMA ,NFPA and API?

Answer:

IEEE stands for Institute of Electrical and Electronics Engineers.

IEC stands for International Electrotechnical Commission.

NEMA stands for National Electrical Manufacturers Association.

NFPA stands for National Fire Protection Association.

API stands for American Petroleum Institute.

2. IEC 60079-14 and IEC 60079-17 used for which purpose? 

Answer:

IEC 60079-14 is for Electrical Installations in Hazardous Areas and IEC 60079-17 is for Electrical Installations, Inspection and Maintenance. 

3. Which type of inspections you have performed regarding Electrical work?

Answer: 

Power Control and Earthing Cables Installation, LV/MV Switchgear Installation, Transformer Installation, Power Distribution Boards Installation, UPS Panel and Battery Installation, Earthing System Installation, Lighting System Installation, Motors Solo Run & Installation check and CP System Installation etc. 

4. What will you check during Lighting Final Installation and which drawing shall be used for this activity? 

Answer: 

Lighting final installation shall be checked as per Typical Installation Detail Drawing and Lighting & Small Power layout drawing, also we have to check the existing inspection reports related to this activity like Cable Laying Inspection report, Cable IR/Continuity test report, Glanding & Termination inspection report. 

5. By how many ways we can get the Cathodic Protection ? 

Answer: 

Cathodic Protection (CP) may be achieved in either of two ways. By the use of an impressed current from an electrical source, or by the use of sacrificial anodes. 

6. What are the main points, which we have to check during Motor Installation inspection? 

Answer: 

The important points that we have to check during Motor Installation are as follows; 

1. Check Rated Voltage, Current, Speed, Frequency, IP Rating and Temp. class.
2. Anti-condensation heaters installed continuity and IR test done. Check Phase to earth resistance (wherever applicable).
3. Verify Current Transformer (CT) installation, connection etc are correct. (wherever applicable).
4. Check stator winding connection and ensure that complies with nameplate/ data sheet.
5. Check auxiliary terminal boxes (space heater, bearing/winding temperature/vibration etc).

What is a Capacitor | Capacitor Construction 

Capacitor symbol | Capacitor Types

Instrumentation Questions:

1. What you knows about explosion proof areas/zones ? 

Answer:

Zone 0, 1 & 2 for Gases and vapours. Zone 20, 21 & 22 for Dust protection. 

2. What you know about Temperature classes for Electrical Instruments/Equipments, if T3 is mentioned over there on any instrument what that means? 

Answer:

It is surface temperature of a piece of electrical equipment. With a temperature classification of T3, surface temp. of electrical equipment will not rise above 200 °C. 

3. Which drawing shall be used for Final Instrument Installation inspection? 

Answer:

Typical Instrument Installation drawing. 

4. If one Pressure Transmitter is installed at site, how many inspections are related to that one instrument? 

Answer:

1. Cable Tray Installation Inspection.
2. Cable Laying Inspection.
3. Cable IR/Continuity Test Inspection.
4. Cable Glanding & Termination Inspection.
5. Instrument Tubing Installation Inspection.
6. Final Instrument Installation Inspection 

5. Which drawing shall be used for Instrument Tubing Installation inspection?

Answer:

Hookup drawing shall be used for Tubing Installation of any Instrument. 

6. During material inspection of a Level Transmitter (LT), what will you check and with reference to which documents? 

Answer:

Material inspection shall be done as per approved ITP, data sheet and MR/MAR. Also following necessary documents shall be checked;

1. Instrument Calibration Report.
2. Product Catalogue/Installation Manual.
3. GA Drawings iv. Vendor Data sheet.
4. Inspection Reports (during manufacturing) 

7. Did you worked on F&G (Fire and GAS) system, if yes please specify which type of F&G instruments you have worked on? 

Answer:

Gas detectors (Flammable Gas Detector, Toxic Gas Detectors, Hydrogen Gas Detector), Flame detectors, Heat detectors, Smoke detectors, Beacons/Horns, Manual call points. 

8. At the stage of material inspection, which report we have to prepare?

Answer: 

MRIR: Material Receiving Inspection Report 

9. What is the abbreviation of DCS, ESD and SCADA system ? 

Answer:

DCS: Distributed Control System 

ESD: Emergency Shutdown System 

SCADA: Supervisory Control and Data Acquisition System 

10. Why we use Analog and Digital I/O cards in DCS Control Module? Which inputs are Analog and which are Digital? 

Answer:

Analog I/O cards shall be used for Analog inputs like, RTD, Thermocouple etc. And Digital I/O cards are used for Digital inputs like Pressure switches etc. 

11. What is IP rating? 

Answer:

IP stands for Ingress Protection, IP classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. 

12. How we check the cable Insulation Resistance (IR) of multi triad cable. 

Answer:

We have to test the cable as following;

1. Triad to Triad.
2. Triad to Screen.
3. Triad to Armour.
4. Core to Core.
5. Core to Screen.
6. Core to Armour 

13. What we have to check during loop checking of a control valve? 

Answer:

We have to note the following readings;

1. Controller output.
2. I/P Converter Output.
3. Valve Positioner Output.
4. Valve Position 

14. What is ‘Accuracy’ in Instrument Calibration? 

Answer:

Accuracy is the term used to describe the degree of conformity of a measured or calculated value to its actual or specified value. 

15. What is calibration span? 

Answer:

The calibration Span is defined as Upper Range Value (URV) minus Lower Range Value (LRV). For Zero-based instruments, % Span is also known as % of Full Scale (% FS). 

16. What is Instrument Error in calibration? 

Answer:

The difference between values indicated by an instrument and those that are

actual.

RF Engineer Interview Questions | Drive Test Engineer Interview Questions

Qc inspector Jobs in UAE | Ocher Consultants

Positions: QC Inspector

Number of Positions: Two (2)
Minimum Qualification: A Bachelor’s degree
    Minimum Experience: 1-3 Years
    Location: Sharjah, UAE

Job Context: 

Responsible for coordinating, facilitating, and implementing quality control standards in Production/Plant. Taking samples periodically from different stages of production and perform quality tests. 

Key Responsibilities: 

• Ensures that products confer with respective quality standards and customer specifications at in-process and final quality points.
• Ensure statistical process control is effectively maintained. 
• Provide support to Operations, Engineering, Sales and other departments in interacting with customers, suppliers and other vendors.
• Develop, implement, and coordinate quality training programs for all Production personnel.
• Review quality Control standards, existing policies & procedures to evaluate the effectiveness of the production quality programs.
• Ensures proper handling and maintenance of QC equipment.
• Ensures that safety standards and procedures are followed.
• Any other task as assigned by the management.
Skill Sets:
• Ensure all aspects of the Quality Control Department including Quality Control, Calibration, and Document Control are implemented and complied. 
• Manage and maintain database for quality investigation reports. 
• Participate in employee training on Quality related systems. 
• Provide Quality Control support for Engineering, Manufacturing, Supplier Control and Product Development. 
• Quickly review suspect material and provide disposition instructions. 
• Assure manufacturing problems are quickly identified, documented and actions are taken to repair,
• Follow schedule for reviews and improve quality plans and inspection requirements.

Procedure to Apply: 

Interested applicants may immediately submit their CV along with latest snap & scan copy of valid passport at:cv@ocherconsultants.com as soon as early.
Please clearly mention the position applied for in the subject line. CV’s without subject will not be considered. Only shortlisted candidates will be called for Skype Interview (if required).

What is Electrical Resistance | Electrical Resistance Formula

What is Electrical Resistance?

Electrical resistance of an electrical conductor is the defined as:

An electrical quantity which measure how conductor material reduces electric currant flow through it.

Electrical resistance is measured in ohms (Ω).

Electrical resistance formula:

By ohm's law R is equal to V divided by I where,

R is the resistor's resistance in Ohms (Ω).

V is the voltage drop on resistor in Volts (V).

I  is the current of resistor in amperes (A).

Resistance in Series:

In series circuit total resistance of the circuit is equal to the sum of all resistance connected.

And the formula of resistance in series is:

R_Total = R₁+ R₂+ R₃+...

In series circuit current will be same in every resistor and voltage accross the circuit is the sum of voltage across the each component.

Resistance in Parallel:

In parallel circuit total resistance formula used is:

R_Total = 1/R₁+ 1/R₂+ 1/R₃+...

As circuit shown in parallel circuit current will be divided through each resistor and voltage will apply same on each resistor.

Resistivity and conductivity:

Read More:
1. RF Engineer Interview Questions | Drive Test Engineer Interview Questions
2. What is 2g 3g 4g | Difference Between 2g 3g and 4g
3. What is a Capacitor | Capacitor Construction
4. Capacitor symbol | Capacitor Types

Format Hard drive Windows 7 | How to Format a Hard Drive in Windows 7

Format a Drive in Windows 7, 8, 10:

You can format hard drive windows 7 or any windows like xp, vista, 8 and 10 by following below mention easy steps.

1. First of all open my computer.
2. Your partitions will be showing like local disc c, d, e. or in windows 7 like OS (C), OS (D) etc.
3. If you connect your external hard disk, memory card or any other portable drives that will also show here.
4. Now the drive that you want to format right click on that drive as shown in picture you will see format in options.
   
5. Click on format then you will see this tab.
              
6. Now check Quick format box and click on start button.
7. You are done, after some seconds your drive will format.

1. How to Show hidden files in USB 2. How to run old games on windows 7 3. How to install windows 7 from USB 4. Top Ten Keyboard shortcuts

What is 2g 3g 4g | Difference Between 2g 3g and 4g

What is 2g 3g 4g: 

If you are searching about what is 2g 3g 4g , understand here G stands for generation of mobile network. Now a days mobile network operators are offering 4g and 4.5g services in different countries. In 2015-2016 4g and 4.5g is mostly used technology.

• Companies for 2g 3g and 4g | Drive test engineering jobs
• Rf engineer interview questions | Drive test engineer interview questions
• What is a Capacitor | Capacitor Construction

What is 2G:

2g stand for second generation, it is a wireless telephone technology. 2g is also known as GSM (global system for mobile). If we talk about its benefits, there are 3 primary benefits of 2g. 

2G system was significantly more efficient on the spectrum allowing for far greater penetration level.

Data services like text messaging, picture messaging and mms was introduced by 2g networks.

Now a day 2g is superseded by new technologies like 2.5g, 2.75g, 3g, 4g and 4.5g. However 2g is still used in many parts of the world.

What is 3g:

3g is a term refers to third generation of wireless mobile networks. This short form (3G) is set by international telecommunication Union (ITU).

3g broadband offers greater flexibility and services and is more efficient then its predecessor 2g.

What is 4g:

Every one is shouting 4g, 4g. What is 4g?

4G is a fourth generation mobile networks technology as like 3g was third generation.

4G / LTE (long term evaluation) was arrived in UK for the first time in October.

4G LTE is offering for faster and more reliable mobile broadband internet for smart phones, tablets and laptops.

Lastly 4G is 5 times faster then 3g. Theoretically we can get 100 Mbps in lab but its not in real life. the average speed you can get is 30 Mbps maximum is real.

You can only use it on 4g internet supporting devices.

Difference Between 2g 3g and 4g: 

what is Difference Between 2g 3g and 4g?

As the name would recommend, 1G was the primary generation of mobile networks. Here essentially, radio signals were transmitted in ‘Analogue’ type and expectedly, one wasn't able to do a lot of aside from sending text messages and creating calls. however the largest disadvantage, however came within the variety of restricted network availability, as within the network was available solely inside the country.

2G networks on the opposite hand, were supported narrow band digital networks. Signals were transmitted within the digital format and this dramatically improved the standard of calls and additionally reduced the quality of information transmission. the other advantage of the 2G network came within the variety of Semi world Roaming System, that enabled the property everywhere the planet.

Between 2G and 3G there was a brief innovate between wherever mobile phones became sleeker and a lot of ‘pocketable’ if we are able to call it that. this can be popularly brought up as 2.5G wherever the number of radio waves to be transmitted was a lot of lower. This successively had an impression on the form and structure of mobile phones. however most of all, 2.5G helped within the ushering of GPRS (General Pocket Radio Service).

The third generation of mobile networks has become popular mostly because of the flexibility of users to access the web over devices like mobiles and tablets. The speed of information transmission on a 3G network ranges between 384KBPS to 2MBPS. this implies a 3G network really permits for a lot of information transmission and so the network allows voice and video calling, file transmission, net aquatics, online TV, read high definition videos, play games and far a lot of.  3G is that the best choice for users World Health Organization ought to perpetually keep connected to net.

4th Generation of mobile networks ar believed to produce several price accessorial options. additionally to any or all the 3G facilities, knowledge transmission is believed to travel through the roof with speeds move between 100MBPs to 1GBPS. Phew! Happy talking, surfing, conferencing, chatting, networking, partying, or no matter you would like to try and do on your cell phone.

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Difference Between 2g 3g and 4g, what is 2g 3g 4g, 2g and 3g difference, what is 4g, what is 3g, what is 2g, what is 1g.

Capacitor symbol | Capacitor Types

Capacitor Symbol:

There are different types of capacitors, and the basic capacitor symbol for every capacitor is same like shown in fig.

In this fig three capacitor symbols are showing.

Read full article: What is a capacitor.

Read More: Keyboard shortcut keys.

Capacitor symbol with picture:

Polarize and non-polarize capacitor symbol:

All electrolytic capacitor are polarizes capacitor.

A type of capacitor that has no implicit polarity, it can be connected either way in a circuit is non polarized capacitor.
Mica, Ceramic and some electrolytic capacitors are non-polarized. 
You'll also sometimes hear people call them "bipolar" capacitors.

More symbol of Capacitor:

What is a Capacitor | Types of Capacitors | Capacitor Construction

What is Capacitor or capacitor definition:

A capacitor is an electrical passive device which used to store electrical energy. A capacitor is made of two closed conductors / plates, separated by dielectric material.

When  its connected to power source plates accumulates electric charge. Positive and negative charges accumulates on both plates.

Stored electric charge in capacitor is measured as capacitance and the unit to measure capacitance is Farad (F).

Pictures of capacitors:

Capacitors Picture

In the picture shown, these are passive capacitors.

You can see all capacitors have two points to connect with positive and negative charge.

There are different types of capacitors. 

Read More: Rf engineer interview questions.

Capacitor symbol:

As shown these are some capacitor symbol.

what is Capacitance:

Capacitance can be defined as: electric charge divided by voltage is equal to capacitance.

Where:

C = capacitance (in farad)

Q = electric charge (in coulombs)

and

V = Voltage (in volts)

Capacitance Formula: C=Q/V

Capacitance of a plate capacitor:

Capacitance (C) of plate capacitor is equal to permittivity (ε) times, Area of plate (A) divided by distance between plates (d).

Here,

C = capacitance of capacitor in Farad (F)
ε = permittivity of capacitor's dielectric material in farad/meter (F/m)
A = Area of capacitor plate in square meter (m)² 
d = Distance between capacitor plates in meter (m)

Capacitor Construction:

Only Parallel plate capacitors are considered for all practical purposes. There are two conductors or electrodes separated by dielectric material of uniform thickness. Conductors can be any type of material which can easily conduct electricity. Dielectric material must be an insulator - poor conductor.

Types of Capacitors:

• Variable Capacitor
• Spherical Capacitor
• Electrolytic Capacitor
• Power Capacitor
• Ceramic Capacitor
• Tantalum Capacitor
• Paper Capacitor
• Mica Capacitor

FTTH, FOC, NOC, Transmission and many more Jobs in Delta Telecom

Jobs in Delta Telecom:

This Job has been Expired you can contact Delta for More Job information.
Delta telecom have opening for Telecom Engineer residing in Saudi Arabia.

	Read More Companies in Saudi Arabia. Read More Email list of Companies to apply for Job. Read More Rf engineer interview questions.

Positions:

• Telecom, Installation Engineer
• Telecom, Implementation Engineer
• FTTH Enginer
• Fiber Optics Engineer
• Generator Tecnician
• Documentation Responsible
• Bss Engineer
• NOC Engineer
• Help Desk Engineer
• Transmission Engineer
• Technicians ( Telecom)
• Riggers
• Purchaser for Telecom Equipment
• Civil Engineer
• Civil Project Supervisor
• Telecom Supervisor
• Team Lead Engineer

The candidates who have transferable iqama will be proffered. In some positions driving license should be a plus point for candidate.
Email your resume written below.

Email Address: hr.ksa@deltatelecom.co

RF Engineer Interview Questions | Drive Test Engineer Interview Questions

 RF Engineer Interview Questions:

RF engineer or rf drive test engineers are commonly asked below written question. But it depends on your job duties for which postion you are hiring. Rf engineer interview question should not be same all time due to new technologies coming day by day but basics are very important to understand. When you talk about drive test engineer jobs you should have to know companies for drive test engineers.

Interview questions and answers:

Q.1: Please introduce the telecommunication/wireless system configuration.

GSM: MS-BTS-BSC-MSC WCDMA:UE-NODEB-RNC-CN

Q.2: Tell us 2G/3G(noun) parameter we often see in the testing ,explain it:

GSM:

RX Level (Received signal level):

-70dbm to -20dbm:good;-70dbm to -80dbm:normal;-80dbm to -90dbm:acceptable; below -90:bad

RX Quality (Recieved signal quality):

0 to 4 :good;   4 to 6 normal; up 6 bad;

C/I: Carries power / Interface power

WCDMA:

RSCP: Recieved signal code power

-70dbm to -20dbm:good;-70dbm to -80dbm:normal;-80dbm to -90dbm:acceptable; below -90:bad

Ec/Io: Chip energy / Interface of other cell:

0 to -6:good;-6 to -10: normal;-10 to -12:acceptance; below -12:bad.

Q.3: Introduce the testing for new site.

① On air or not；

② sector swap or not;

③ site coverage;inter handover;intra handover;

④ GPRS or hsdpa hsupa testing

⑤ video call testing(3G)

⑥ sms,mms testing

Q.4: How to estimate the antenna /feeder cross during testing?

When we at the service cell coverage the rxlev is other cell’s .and the rxlev is weakly.

When we test ,target cell ,the sverce line connect to other cell.

Q.5: Please Analysis of Causes of call drop.

Poor coverage:

Coverage hole, dead zone, isolated island, uplink/downlink unbalance Coverage over shooting Signal attenuation.

Interference:

Internal interference, external interference and the equipment interference ; Strong downlink/ uplink  interference.

Parameter setting not proper:

Radio link timeout counter, handover, power control etc.

Handover failure:

Q.6: Please Analysis of Causes of handover failure.

① missing neighbor or neighbor not defined

② parameter for the handover are not good

③ Interference

Q.7: Introduce the software and test equipment you have used Software:

① TEMS product:TEMS9.1;8.14;8.03;

② Nemo

③ Probe1.5,probe1.4;probe1.3; assistant analysis

④ Mapinfo:9.0;8.5;7.0;

⑤ actix analysis

 Test mobile:

sonyerrisson: k800i; k790i; z750i; w600; w995

Nokia: 6680; N70; N80

Motorola: V3XX

Q.8: Introduce the mapinfo and googlearth.

① Check the site location from google earth or mapinfo

② check the entironment nearby the site and make a plan for the testing from google earth and mapinfo;

③ analysis the logfile from mapinfo.

Q.9: how can analysis the logfile and make report.

① actix software analysis

② Tems software analsis

③ assistant software analysis

Check coverage,quality ,handover and Throughput and so on.
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Companies for 2g 3g and 4g drive test engineer jobs in Saudi arabia KSA

LCC:

LCC is a world famous telecom company who need drive test engineers every time. In Saudi Arabia LCC do not allow to work on free visa now, If you want to work in LCC you should have to transfer in company.

LCC Address:

Office # 4 and 5 second floor Al mizan tower, main street olaya Riyadh KSA

Riyadh 11451 P.O Box 2432

Phone: +966 11 4653626

Fax: +966 11 4661838

Web: www.lcc.com

SwedTel Arabia:

In different cities swedtel has different projects Main cities where it is working is Dammam, Jizan, Abha, Jeddha and Madinah.

Swedtel allow to work on free visa and hire drive test engineer fresh and experienced. This is not a big company if we see lcc, Swedtel is only working in four countries UAE, KSA, Malaysia and Sweden.

SwedTel Address:

Al hejlan building Near ishara siteen olaya road Riyadh KSA.

Riyadh 115227 P.O Box 68367

Phone: +966 11 4735990

Fax: +966 114735991

Web: www.swedtel.com

GTL:

In telecom business gtl is a well-known telecom company in KSA. GTL has awarded many time in different business competitions. GTL is working in Nepal, USA, Canada, UK, UAE, KSA and Philippines. GTL hire drive test engineers for 2g 3g and 4g projects.

GTL Address:

Office # 615 Al Akaria 2 Olaya GTL KSA limited

Riyadh 11372 P.O Box: 301146

Phone: +966 1 4603990

Fax: +966 1 4603700

Web: www.gtllimited.com

Delta Telecom:

Delta is working in various telecom fields like network planning, network development, network support, Rf network planning, optimization and drive test engineering.

Delta Telecom Address:

Office # 14, 15 4rt floor al lokman building. King Abdul Aziz st. cross 10 Al-Khober.

Phone: +966 3 8998183

Fax: +966 3 8998183

Web: www.deltatelecom.co

CCS:

CCS is hiring drive test engineers who has good knowledge of 2g 3g and 4g experience with reporting. CCS take transfer and have good benefits for employs instead of others.

CCS Address:

Room # 104 first floor Al Salam complex king fahad road Riyadh KSA.

Phone: N/A

Fax: N/A

Web: www.chinaccsi.com

• Email List of companies in Saudi Arabia