BUET ENGINEERS

1. The top, front, and bottom views align in this manner: A. Horizontally B. Vertically C. According to the planar views D. Parallel to the frontal plane 2. If a plane is parallel to the plane of projection, it appears: A. True size B. As a line or edge C. Foreshortened D. As an oblique surface 3. This line pattern is composed of three dashes, one long dash on each end with a short dash in the middle: A. Object B. Hidden C. Center D. Phantom 4. the plane upon which the top view is projected: A. Horizontal B. Frontal C. Profile D. Base 5. An advantage of this type of view is that each view shows the object all the way through as if it were transparent: A. Planar B. Horizontal C. Auxiliary D. Orthographic 6. This type of surface is tipped to all principal planes of projection and does not appear true size in any standard view: A. Foreshortened B. Parallel C. Orthographic D. Oblique

1. The primary unit of measurement for engineering drawings and design in the mechanical industries is the: A. Millimeter B. Centimeter C. Meter D. Kilometer 2. These units are based on inch-foot and yard measurements: A. International customary units B. U.S. metric units C. U.S. customary units D. ISO international units 3. This is how axonometric, oblique, and perspective sketches show objects: A. Orthographically B. Pictorially C. Obliquely D. Parallel Axonometric projection  is a type of  orthographic projection  used for creating a pictorial drawing of an object, where the lines of sight are perpendicular to the plane of projection, and the object is rotated around one or more of its axes to reveal multiple sides. 4. This type of projection is when projectors are parallel to each other, but are at an angle other than 90 degrees to the plane of projection: A. Oblique projection B. Perpendicular projection C. ...

Architect's scale Edit A triangular architect's scale, made of  brass An architect's scale is a specialized  ruler  designed to facilitate the drafting and measuring of  architectural drawings , such as  floor plans  and  orthographic projections . In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale. A device for drawing straight lines is a straight edge or  ruler . In common usage both are referred to as a ruler. Because the  scale  of such drawings are often smaller than life-size, an architect's scale features multiple  units of length  and proportional length increments. For accuracy and longevity, the material used should be dimensionally stable and durable. Scales were traditionally made of wood, but today they are usually made of rigid  plastic  or  aluminium . Architect's scales may be flat, with 4 scale...

Engineer's scale Edit Boxed set of 1850s ivory engineer's scales presented to the railway civil engineer  George Turnbull  in India. 16 scales are engraved. An  engineer's scale  is a tool for measuring distances and transferring measurements at a fixed  ratio  of length. It is commonly made of  plastic  or aluminum, and is just over 12 inches (300 mm) long, but with only 12 inches of markings, leaving the ends unmarked so that the first and last measuring ticks do not wear off. It is used in making engineering drawings, commonly called  blueprints , blue lines or plans in a specific scale. For example, "one-tenth size" would appear on a drawing to indicate a part larger than the drawing on the paper itself. It is not to be used to measure machined parts to see if they meet specifications. In the  United States  this scale is divided into decimalized fractions of an  inch , but has a cross-section like an ...

Glitter Bomb Explodes YouTube Star’s Popularity, Part  Ex-NASA engineer makes 'glitter bomb' to get revenge on porch thieves. Image: Mark Rober Despite all of the cool inventions he created, the glitter bomb is clearly Rober’s greatest hit. It is also among the most complex: a combination of mechanical components, four smartphones, and a custom printed circuit board attached to a 3D-printed chassis. One of the mechanical components releases a pound of multi-colored glitter from a cup embedded into the device’s top. Basically, it consists of a motor and gear box attached to the cup, which faces upward, Rober said. “When you spin it, the centrifugal acceleration then pushes the glitter outwards in a very uniform pattern.” But Rober did not just want to fling glitter at thieves who stole his package. He wanted to humiliate them by posting their response in a video. That meant recording their expressions and cries as the glitter coated their pants and car ...