# QA/QC engineer basic Interview questions

**URL:** <https://forumautomation.com/t/qa-qc-engineer-basic-interview-questions/6321>\
**Category:** Interview Q & A\
**Created:** [April 30, 2019, 7:19pm UTC](https://forumautomation.com/t/qa-qc-engineer-basic-interview-questions/6321 "2019-04-30T19:19:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sivaranjith](https://forumautomation.com/letter_avatar_proxy/v4/letter/s/ba9def/32.png) [@sivaranjith](https://forumautomation.com/u/sivaranjith)\
**Post date:** [April 30, 2019, 7:19pm UTC](https://forumautomation.com/t/qa-qc-engineer-basic-interview-questions/6321/1 "2019-04-30T19:19:34Z")

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## What is QA/QC?

Answer:

**QA - Quality assurance**** QC - Quality control**

This QA/QC is intended to determine the sequence of requirements for material quality, work, inspection and recording.

## What are the basic required documents for a QA/QC personal?

Answer:

ITP: To conduct the quality check

QCP: Quality Control Procedure

WP: Work Procedure

P&ID: Piping & Instrument Diagram, as a reference.

MTC: To ensure that the material complies the PES standard specs.

PP: To ensure that the tools are installed in accordance with PID & PP as appropriate

IDS/ISS: To ensure that the instrument comply with basic requirements.

RFI: Request For Inspection.

QR: Quality record

QCO: To issue a warning in case of little violation and observation

NCR: To issue a warning in case of serious violation of the standard.

Calibration report: To ensure parameters are function checked as per IDS.

Hookup: To ensure remote connections are done correctly.

Wiring diagram: To ensure the wiring is done correctly.

## What is NCR?

Answer:

NCR is Non-Compliance Report or Non-Conformance report. A QA/QC personal can warn the contractor if they don’t comply or violate the standard procedure.

## What are the general Work Procedure (WP)?

Answer:

Work Procedure steps:

- Collect drawing & document

- Reproduction of the drawing

- Issue of drawing site

- New-issuing new revision

- Shredding of drawing

- Redlining drawing

- Transmittal of red lines of the client.

- Restricted access to the DCO

- Record

## What is Redlining?

Answer:

Drawing will be Redlined if some changes occur from the approved standards while the project is being constructed. Colour coding used:

Red: If addition required in the drawing

Green: If deletion is required from the drawing

Blue: If any comment is added.

## What are different kinds of certifications?

Answer:

- Wheather proof

- Dustproof

- Water tight

- Explosion proof

- Flame proof

- Intrinsic safety proof

## What are the difference between Inspection, witness & Hold point?

Answer:

Inspection: Work can be done without clients inspection.

Witness: It can be inspected on the completion of work without client inspection.

Hold point: Work can’t be executed further without client inspection

## What is ISO?

Answer:

[ISO](https://www.google.com/aclk?sa=l&ai=DChcSEwjwiZD4w_jhAhXBhHAKHVnSC8QYABAAGgJzYg&sig=AOD64_3YVNNebMyp0FgPkS2gn3gQD5xqZQ&q=&ved=2ahUKEwid1Yr4w_jhAhVb4XMBHVMwBgUQ0Qx6BAgLEAE&adurl=) means International Standard Organisation, some of their standards are ISO 9000 QMS, ISO 14001, etc.,

## What is loop check?

Answer:

[Loop check](https://forumautomation.com/t/what-is-loop-checking-importance-of-loop-checking/2346) is an operational check of a control loop. Intended to find out the deficiencies in control loop/ field interface/ HMI.

## What are standard heights to install the instruments?

Answer:

A standard height to install instruments is 1 - 4 meters, it can be changed according to the site convenience.