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Introduction to Engineering Specifications

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Introduction to Engineering Specifications

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Questions and Answers

What is precision characterized in terms of?

Mean

Standard deviation (correct)

Mode

Range

A result is considered valid if it is:

Accurate only

Precise only

Both accurate and precise (correct)

Neither accurate nor precise

Which classes of well cements are covered in the document?

Classes M and N

Classes G and H

Classes A, B, C, and D (correct)

Classes X and Y

What does the document specify for well cement classes G and H?

Only clinker with no additives Signup and view all the answers

Which referenced document is indispensable for the application of this document?

API Specification 13A Signup and view all the answers

What does the specification allow for in terms of equipment and engineering solutions?

It allows vendors to offer alternative equipment or solutions for individual applications. Signup and view all the answers

When is it the responsibility of the vendor to identify variations from the specification?

When an alternative is offered by the vendor. Signup and view all the answers

What does 'calibrating an instrument' refer to in the specification?

Ensuring the instrument's accuracy in measurement. Signup and view all the answers

What do the US Customary (USC) units provided in brackets represent?

Direct conversion of SI units to USC units. Signup and view all the answers

What is accuracy related to in the context of a measurement?

Conformity of a measurement to its actual value. Signup and view all the answers

Why are temperature values rounded to the nearest degree in the specification?

To match precision marks on thermometers. Signup and view all the answers

Study Notes

This specification outlines requirements and recommendations for six classes of well cements and two classes of composite well cements.
Well cement classes A, B, C, and D are obtained by grinding Portland cement clinker with interground or blended calcium sulfate (CaSO4) as an additive. Processing additives and set-modifying agents can be used.
Composite well cement classes K and L are obtained by intergrinding Portland cement clinker with composite constituents or by blending separately produced Portland cement with separately processed composite constituents.
Metric SI and US customary units are used in this document, with conversions rounded for ease of use.
API Specification 13A and ASTM C109/C109M, as well as other referenced documents, are indispensable for the application of this specification. They provide standards for testing compressive strength of hydraulic cement mortars and chemical analysis of hydraulic cement.

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Description

This quiz covers the basics of engineering specifications, including the awareness of varying requirements for different applications and the consideration of alternative equipment or solutions. It emphasizes the responsibility of vendors and purchasers when alternative technologies are offered.