This often requires the use of an

**aligned dimension**.**Aligned**dimensions can be created with the standard**dimensioning**tool in a sketch to**align**a**dimension**with the entity being dimensioned. In addition, the**aligned dimension**can be used to define the minimum distance between two sketch points or entities.Herein, what is unidirectional system?

Dimensions are placed at the middle and on top of the dimension lines.

**Unidirectional System**. In the**unidirectional system**, dimensions are placed in such a way that they can be read from the bottom edge of the drawing sheet. Dimensions are inserted by breaking the dimension lines at the middle.What are the two systems of dimensioning?

The dimensions are written either above the

**dimension**lines or inserted at the middle by breaking the**dimension**lines. Normally**two types of dimensioning system**exist. i.e. Aligned**system**and the unidirectional**system**.These are shown in figure 3.1

## What is a datum dimension?

A

**datum dimension**is a group design object. It allows for the**dimensioning**of a linear distance of a collection of objects, relative to a single reference object. The first object chosen is the 'base'. All subsequent objects are relative to this first object.2

## How do you align dimensions in Autocad?

**Help**

- Click Annotate tab Dimensions panel Adjust Space. Find.
- Select the dimension that you want to use as the base dimension when equally spacing dimensions.
- Select the next dimension to align.
- Continue to select dimensions and then press Enter.
- Enter 0 and press Enter.

3

## What is a baseline dimension?

A

**baseline dimension**is a group design object. It allows for the**dimensioning**of a linear distance of a collection of references, relative to a single base reference. The first point chosen is the 'base'. All subsequent points are relative to this first point.4

## What is a baseline in Autocad?

Creates a linear, angular, or ordinate dimension from the

**baseline**of the previous or selected dimension. Find. The default spacing between**baseline**dimensions can be set from the Dimension Style Manager, Lines tab,**Baseline**Spacing (DIMDLI system variable).5

## What is ordinate dimension in Autocad?

The origin point specified is used to define the value assigned to the

**ordinate dimension**. Typically, the origin point is defined on the model. If straight**ordinate**leaders are required, turn Ortho mode on. At the Select Feature Location prompt, specify a point location.6

## What is the UCS in Autocad?

The User Coordinate System defines. The XY plane, also called the work plane, on which objects are created and modified. The horizontal and vertical directions used for features like Ortho mode, polar tracking, and object snap tracking.

7

## What is the definition of ordinate dimensioning?

**Ordinate dimensions**are a set of

**dimensions**measured from a zero

**ordinate**in a drawing or sketch. In drawings, they are reference

**dimensions**and you cannot change their values or use the values to drive the model.

**Ordinate dimensions**are measured from the axis you select first.

8

## What is the datum plane?

Engineering. An engineering

**datum**used in geometric dimensioning and tolerancing is a feature on an object used to create a reference system for measurement. In engineering and drafting, a**datum**is a reference point, surface, or axis on an object against which measurements are made.9

## What is a datum for GIS?

In surveying and geodesy, a

**datum**is a set of reference points on the earth's surface against which position measurements are made, and (often) an associated model of the shape of the earth (reference ellipsoid) to define a geographic coordinate system.10

## What is the datum of an aircraft?

The area between the limits is called the CG range of the

**aircraft**. The horizontal reference**datum**is an imaginary vertical plane or point, placed along the longitudinal axis of the**aircraft**, from which all horizontal distances are measured for weight and balance purposes.11

## What is the reference datum?

**reference datum**. As used in the loading of aircraft, an imaginary vertical plane at or near the nose of the aircraft from which all horizontal distances are measured for balance purposes. Diagrams of each aircraft show this

**reference datum**as "balance station zero."

12

## What is basic weight of an aircraft?

**Operating**empty

**weight**(OEW) or

**basic operating weight**is the

**basic weight**of an aircraft including the crew, all fluids necessary for

**operation**such as engine oil, engine coolant, water, unusable fuel and all operator items and equipment required for flight but excluding usable fuel and the payload.

13

## What is basic weight?

It is the

**basic weight**of an aircraft including the crew, all fluids necessary for operation such as engine oil, engine coolant, water, unusable fuel and all operator items and equipment required for flight but excluding usable fuel and the payload. Payload. It is the carrying capacity of an aircraft.14

## Why is there a maximum zero fuel weight?

The bending loads increase significantly as

**weight**in the fuselage increases. All**weight**over and above the Maximum**Zero Fuel Weight**must be in the form of**fuel**in the wings. This plane can hold 5300 lbs of "Stuff" -**Fuel**or cargo. However, the ZFW limits the amount of cargo that can put on.15

## What is the maximum ramp weight?

**Maximum ramp weight**. The

**maximum ramp weight**(MRW) (also known as the

**maximum**taxi

**weight**(MTW)) is the

**maximum weight**authorised for manoeuvring (taxiing or towing) an aircraft on the ground as limited by aircraft strength and airworthiness requirements.

16

## What is the zero fuel weight of an airplane?

The zero-fuel weight (ZFW) of an aircraft is the total weight of the airplane and all its contents, minus the total weight of the usable fuel on board. Unusable fuel is included in ZFW. For example, if an aircraft is flying at a weight of

**5,000 kg**and the weight of fuel on board is**500 kg**, the ZFW is 4,500 kg.17

## What is dimension in size?

**Dimension**means

**size**for engineering, formally or informally, and has a vector property associated with it. One can refer to the

**dimension**"

**length**" of a couch when buying furniture or on a mechanical drawing designing it. "

**Size**" is more general. The words are synonyms; it is the usage which differs.

18

## What is the difference between size and location dimension?

With respect to linear

**dimensions**,**size dimensions**are sometimes referred to as overall**dimensions**, and will tell the viewer the overall width, height, and depth of an object.**Location dimensions**show the**location**of each geometric feature within an object or view.19

## What comes first in dimensions?

The Graphics' industry standard is width by height (width x height). Meaning that when you write your measurements, you write them from your point of view, beginning with the width. That's important. When you give us instructions to create an

**8×4**foot banner, we'll design a banner for you that is wide, not tall.20

## How do you read room dimensions?

For example, a

**dimension**of a rectangular**room**on a blueprint, 14' 11" X 13' 10" equates to a**room**size of 14 feet, 11-inches wide by 13 feet, 10-inches long.**Dimensions**are expressed as width by length by height or depth in three-**dimensional**space.