This set of Flexible Manufacturing System Multiple Choice Questions & Answers (MCQs) focuses on “Manufacturing Operations”.
1. Which is a single step operation used to transform raw material to final product?
a) Tetragonal Operation
b) Unit Operation
c) Tertiary Operation
d) Binary Operation
View Answer
Explanation: To transform raw material to final product in a single step in the sequence of steps is known as Unit Operation. Many Unit operations are interlinked to perform an overall process. Tetragonal, Tertiary and Binary operations are not single step operations.
2. How are manufacturing operations classified?
a) Processing and Assembly Operations
b) Stable and Unstable Operations
c) Fixed and Variable Operations
d) Single and Binary Operations
View Answer
Explanation: Processing and Assembly are the two categories of Manufacturing Operations. It is based on the finished product after operations with respect to the final product. Stable and unstable, Fixed and Variable, Single and Binary do not come under manufacturing operations.
3. Which of the following manufacturing operation joins two or more products to form a new entity?
a) Pasting Operation
b) Mixing Operation
c) Assembly Operation
d) Processing Operation
View Answer
Explanation: Two or more parts are joined to form a new entity in assembly operations. Parts are assembled considering tolerances and allowances without compromising the function of the system.
4. Which operation is used to convert a work material to the near product state?
a) Moving Operation
b) Stationary Operation
c) Assembly Operation
d) Processing Operation
View Answer
Explanation: Processing Operation is used to convert a work material to a state that is closer to the final product shape and structure. It is usually achieved by applying energy to bring a change in work material shape and structure.
5. Which of the following is a desirable objective in manufacturing?
a) Reducing Waste
b) Increasing Inventory
c) Increasing Lead Time
d) Increasing Waste
View Answer
Explanation: One of the desirable objectives in manufacturing is to reduce waste. Increasing the inventory, Increasing Lead Time and Increasing Waste are not usually desired in manufacturing perspective.
6. What are all the categories of Processing Operations?
a) Setting, Tooling and Dismantling
b) Shaping, Property Enhancing and Surface Processing
c) Dismantling, Assembling and Machining
d) Manufacturing, Dismantling and Assembling
View Answer
Explanation: Shaping, Property Enhancing and Surface Processing are the three broad categories of Processing Operations. These operations are usually done is sequence to achieve the required design specifications.
7. Which of the following process pours the molten metal into a mold cavity?
a) Dyeing
b) Solidification Process
c) Machining
d) Finishing
View Answer
Explanation: In Solidification Process, molten metal is poured into the cavity which is similar in shape of the final product. The molten metal gets solidified and gets removed from the cavity and hence it is called as Solidification Process.
8. Which of the following is used in the Casting Process?
a) Powder
b) Rubber
c) Metals
d) Ceramics
View Answer
Explanation: Metals are used in the casting process. Powders, Rubber and Ceramics are not generally used in the casting process. In casting process, metal is melted and poured into the cavity to gain the shape of the die.
9. Which of the following process is usually done for plastics and glasses?
a) Molding
b) Casting
c) Welding
d) Grinding
View Answer
Explanation: Molding is usually carried out using Plastics and glasses. Plastics and glasses are not used in processes like Casting, Welding and Grinding processes. This is because in these processes, high temperature leads to complete melting and may explode sometimes.
10. Which process involves pressing of powders at high pressure in a die cavity?
a) Solidification Process
b) Particulate Processing
c) Liquefaction Process
d) Precipitation
View Answer
Explanation: In particulate Processing, final product is achieved by applying high pressure to metallic powders in die cavity so that the powder takes the shape of the die cavity. In particulate processing, Powder is the starting material.
11. Which process is used to increase strength by heating the part to a temperature below melting point so that the particles get bonded together?
a) Lubricating
b) Freezing
c) Desalination
d) Sintering
View Answer
Explanation: Sintering is usually done to increase the strength of parts made using metallic powders. It is done by heating the part to temperature below its melting point so that the particles get bonded together.
12. Which of the following can be formed using particulate processing?
a) Gases
b) Fluids
c) Metals and Ceramics
d) Semi-fluids
View Answer
Explanation: Metals and Ceramics are formed using particulate processing. Gases, Fluids and semi-fluids are the states of matter which cannot be formed using particulate processing. This is because metals and ceramics have the capability to gain strength and take their shape under the application of heat.
13. Which of the following manufacturing process is carried out by applying stress exceeding metal’s yield strength by using ductile metal as its starting material to obtain the final product?
a) Loading Process
b) Assimilating Process
c) Deformation Process
d) Expansion process
View Answer
Explanation: In Deformation process, load is applied on the metal exceeding the metal’s yield strength. The final product is obtained by using ductile metal as its starting product. Since, deformation is seen in the ductile metals it is termed as Deformation Process.
14. Which of the following is a deformation process?
a) Forging
b) Nitriding
c) Carbonization
d) Quenching
View Answer
Explanation: Forging is a deformation process. Nitriding, Carbonization and Quenching are the processes used to harden the material. Forging is the process where the work metal will be subjected to high temperature and compressive force will be applied to them to strengthen it.
15. Which of the following is done using sheet metals?
a) Extrusion
b) Rolling
c) Forging
d) Bending
View Answer
Explanation: Bending is done using sheet metal. Extrusion, rolling and Forging are the deformation processes. In bending, the metal takes a new shape from the existing shape where as in deformation process, it results in the change in length of the component.
Sanfoundry Global Education & Learning Series – Flexible Manufacturing System.
To practice all areas of Flexible Manufacturing System, here is complete set of 1000+ Multiple Choice Questions and Answers.
If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]
