Refresher 1 - MDSP (71 terms)

How do you call a ball bearing with race containing a pronounced groove for rolling elements?

Conrad bearing

This is a machining process for producing internal straight cylindrical surface or profiles, with process characteristics and tooling similar to those for turning operations. What is the machining process?

boring

What is the set of specification for the analysis, design, manufacture, and construction of something; the purpose of which is to achieve a specified degree of safety, efficiency, and performance of quality. How do you call this set of specifications?

Code

How do you call the size to which limits or deviations is assigned and is the same for both members of the fit it is the exact theoretical size?

basic size

What is the algebraic difference between a size and the corresponding basic size?

Deviation

What is the difference between the maximum and minimum size limits of a part?

tolerance

What are the stated maximum and minimum dimensions

limits

This is a general term that refers to the mating of cylindrical parts such as bolt or a hole. It is used only when the internal member is smaller than the external member. How do you call this?

clearance

What is the opposite of clearance, for mating cylindrical parts in which the internal member is larger than the external member?

Interference

These are the compounds of metallic elements, most frequently oxides, nitrides and carbides

ceramics

What do you call a material having different properties in all directions at point in solid?

Anisotropic material

The principle or method that a deflection at any point in bar is equal to sum of deflections caused by each load acting separately. How do you call this method or principle?

Method of superposition

This is the accepted standard wire rope with the wires twisted in one direction to form strands and the strands twisted in opposite in opposite direction to form a rope. How do you call this wire rope?

Regular lang lay rope

What is the form of correction that develops on highly localized areas on a metal surface?

apitting

How do you call the corrosion of iron-based alloys?

rusting

which of the following is the allowable stress that is generally used in practice for main-transmitting shafts?

4000 psi

What is the equation used to determine the first critical speed of the shaft that overstimulates frequency?

Rayleigh Equation

This key allows the hub to move along the shaft but prevent the rotation of the shaft. How do you call this key?

Feather key

How do you call the ratio of mean diameter of the coil and the coil diameter of the spring?

Spring index

It is a low cost spring material, suitable where service is not severe and dimensional precision is not needed. How do you call this material?

Hard drawn wire

How do you call a spring material that is hard drawn (80% reduction) but made up of high-grade steel?

Music Wire

It is a design approach where no catastrophic loss can occur as a result of a component failure. What is this design approach?

Fail-safe design approach

In a lathe machine, how do you call the diameter of the largest workpiece that can be rotated in a chuck or between centers without hitting the bed?

Swing

How do you call a phenomenon when two touching surfaces have high contact pressure and when these surfaces have minute relative motion?

Fretting

What is this part of headstock of a lathe machine used to transmit power from the spindle?

Back gear

When a hot part is cooled suddenly by quenching, there is momentarily a high temperature gradient that induces a stress gradient. Some metal parts under certain conditions crack as a result. What is this phenomenon?

Thermal-shock failure

It is the condition of a machine element when it is completely inoperable, cannot perform its intended function adequately or is unreliable for continued safe use. What do you call this condition?

Failure condition

It is a computation method used for solving complex shapes, such as those found in machinery; replaces the complex shape with a set of simple elements interconnected at a finite set of specific purpose. What is the computational method?

Finite element analysis

It is a design approach where needed service is made apparent before catastrophic failure. How do you call this?

Manifest danger design approach

It is a beam where one end is fixed and the other end is free. How do you call this beam?

Cantilever beam