Wednesday 19 August 2015

Design for Manufacturability Test

Design for Manufacturability Test

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Another name for indirect extrusion is _____________.

a. direct extrusion
b. forward extrusion
c. backward extrusion
d. impact extrusion

The minimum temperature used in the plasma arc cutting process is:

a. 11000°F
b. 17000°F
c. 6000°F
d. 20000°F

Which material is the mold in plaster mold casting made of?

a. Al2O3
b. CaSO4-H2O
c. SiC
d. SiO2

Which of the following is the most commonly employed casting process?

a. Sand casting
b. Centrifugal casting
c. Investment casting
d. Shell casting
e. Die casting

Identify the advantages of sand castings over die castings from the points given below.

a. Sand castings can vary greatly in wall thickness, whereas die castings have a uniform wall thickness.
b. Sand castings have better surface finish than die castings.
c. Sand castings are wider in gauge than die castings.
d. A mold can be reused in case of sand castings, but not in case of die castings.
e. Sand castings are stronger than die castings by virtue of the material used.
f. Sand castings have higher production rates than die castings.

Which tool is used in steel hot rolling of plate?

a. Wire stock
b. Slab
c. Bar stock
d. Bloom

The process of verifying a product's speed, consumption and reliability is called

a. Testing
b. Patents
c. Inspection
d. Quality Assurance

Sheet metal working operations are mainly carried out as:

a. hot working
b. warm working
c. cold working
d. None of these

Which of the following is a high-energy-rate forming process?

a. Electrochemical machining
b. Explosive forming
c. Hydroforming
d. Electron beam cutting

The _____________ process uses mechanical energy as its main energy source.

a. conventional milling
b. laser beam machining
c. electrochemical grinding
d. wire EDM

In the context of computer graphics, WCS stands for:

a. Web CAD System
b. Worldwide CAD Sectors
c. Web Coordinate Sectors
d. World Coordinate System

Another name for the calorizing process is:

a. Doping
b. Hot sand blasting
c. Siliconizing
d. Alonizing

Die casting involves usage of which of the following metals?

a. Tungsten
b. Cast iron
c. Steel
d. Tin

The ____________ process is known to achieve the highest material removal rate.


a. discharge machining
b. water jet cutting
c. ultrasonic machining
d. plasma arc cutting

In which plastic shaping process is parison formed?

a. Compression molding
b. Blow molding
c. Sandwich molding
d. Pressure thermoforming

Which machine tool is used in sheet metal working?

a. Drill press
b. Stamping press
c. Lathe
d. Gear shaper

The number of points essential to define the rectangle command in CAD is:

a. 4
b. 2
c. 8
d. 1

Which of the following is NOT an equipment used for abrasive blasting?

a. Sample blast equipment
b. Blast cabinet
c. Portable blast equipment
d. Blast room

Which of the following types of materials are NOT suitable for stamping?

a. Ferrous metals
b. Nonferrous metals
c. Nonmetallic materials
d. Metallic materials

Which of the following describes the relationship between packing factor and porosity in the case of metallic powders?

a. Packing factor = 1 - Porosity
b. Packing factor - Porosity = 0
c. Packing factor = 2/Porosity
d. Packing factor + Porosity = 0
e. None of these

The DFA(Design for Assembly) index is given as:

a. Theoretical maximum assembly time ÷ Actual assembly time
b. Theoretical maximum assembly time × Actual assembly time
c. (Theoretical maximum assembly time × Actual assembly time) ÷ 2
d. Actual assembly time ÷ Theoretical maximum assembly time

Which of the following are major components of a CNC machine?

a. Machine tool
b. Tracer Control
c. Servos and selsyns
d. Machine Control Unit

Which of the following does NOT determine the quality of a product during manufacturing?

a. Consistency of components of products
b. All components should be new and free from defects
c. Product should meet the requirements
d. Weight of product should be less

Which of the following method is used for the production of gear using generation process?

a. Milling
b. Broaching
c. Punching
d. Hobbing

Which of the following is NOT a manufacturing requirement?

a. Assembly
b. Standards
c. Delivery date
d. Materials

Identify the soldering methods that are NOT applied with brazing.

a. Soldering iron
b. Wave soldering
c. Torch soldering
d. Infrared soldering
e. Dip soldering

Which of the following formulas helps determine the minimum form height for sheet metal use if D, T and R are given as minimum distance, material thickness and bend radius respectively?

a. R = 1.5T + D
b. T = D + R
c. D = 2.5T + R
d. 5T = R - 1.5D

In CAD, which direction is chosen to begin measurement of angles?

a. 3 o'clock
b. 6 o'clock
c. 9 o'clock
d. 12 o'clock

Which of the following machine is appropriate for cutting large diameter holes, holes with very close tolerance, and to do shaped holes?

a. Hole Popping EDM
b. Wire EDM
c. Die Sinking EDM
d. None of these

Which of the following operations is/are carried out in sand casting once the casting is removed from the mold?

a. Inspection
b. Heat treatment
c. Machining
d. All of these

Which design characteristics are easy to achieve by pressing and sintering of metal powders?

a. Outside rounded corners
b. Threaded holes
c. Vertical stepped holes
d. Side holes

Hard facing utilizes which one of the following basic processes?

a. Dip coating
b. Brazing
c. Arc welding
d. Electroplating

___________ is an approach used in product development in which functions of design engineering, manufacturing engineering and other functions are integrated to reduce the elapsed time required to bring a new product to the market.

a. Industrial Engineering
b. Concurrent Engineering
c. Parallel Engineering
d. Manufacturing and design Engineering

In the context of the metal stamping process, which of the following operations produces one or more plane surfaces that are at an angle to the original or flat plane of the blank?

a. Blanking
b. Stamping
c. Forming
d. Coining

_____________ means that factors relating to the product after it has been manufactured should be taken into consideration in design.

a. Design for life cycle
b. Design for manufacturing and assembly
c. Design for cost
d. Design for quality

A _____________ is a thermoforming mold having a convex shape.

a. negative mold
b. three-plate mold
c. positive mold
d. die

Which of the following metals are used to make solder alloys?

a. Copper
b. Lead
c. Tin
d. Zinc
e. Titanium

Which of the following powder shapes is likely to have the lowest interparticle friction?

a. Spherical
b. Hemispherical
c. Circular
d. Triangular

Which of the following ways can be used in product designing so that they can be less environmentally damaging and less costly to produce?

a. Make products durable or recyclable
b. Use recycled materials
c. Substitute for harmful materials
d. Reduce the amount of materials used
e. a and d
f. a, b, c and d

Carburizing incorporates which one of the following?

a. Diffusion
b. Acid pickling
c. Blast finishing
d. Vapor degreasing
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