MCQOPTIONS
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MCQOPTIONS
This section includes 303 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
What is the maximum pressure required in a compression molding process? |
| A. | 35 mpa |
| B. | 40 mpa |
| C. | 45 mpa |
| D. | 50 mpa |
| Answer» E. | |
| 102. |
Which of the following is the main advantage of using the electromagnetic forming process? |
| A. | high speed |
| B. | low maintenance |
| C. | applicable to all materials |
| D. | no spring-back |
| Answer» E. | |
| 103. |
The process of electromagnetic forming does not require any kind of lubrication. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 104. |
Which of the following methods of forming is not the part of electromagnetic forming? |
| A. | compression |
| B. | expansion |
| C. | shearing |
| D. | counter forming |
| Answer» D. counter forming | |
| 105. |
In the electromagnetic forming process, the forming pulse is kept longer to optimize the use of energy. |
| A. | true |
| B. | false |
| Answer» C. | |
| 106. |
Metal used for electroforming process absorbs energy from the magnetic field to get deform. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 107. |
The magnetic field interacts with metal to generate heat in the metal which causes forming process. |
| A. | true |
| B. | false |
| Answer» C. | |
| 108. |
In stretch forming, spring-back is a very complicated problem which causes trouble in operating machines during the process. |
| A. | true |
| B. | false |
| Answer» C. | |
| 109. |
3 WORKING PRINCIPLE AND APPLICATIONS - HYDRO FORMING - RUBBER PAD FORMING - METAL SPINNING |
| A. | forging |
| B. | rolling |
| C. | drawing |
| D. | stretch forming |
| Answer» E. | |
| 110. |
Stretch forming is a sheet metal forming operation in which shearing is taking place to deform the material. |
| A. | true |
| B. | false |
| Answer» C. | |
| 111. |
Which of the following metal forming processes is best suitable for making the wires? |
| A. | forging |
| B. | extrusion |
| C. | drawing |
| D. | rolling |
| Answer» D. rolling | |
| 112. |
Rolling is a forming process in which thickness of the metal plate is decreased by increasing its length. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 113. |
In metal forging process, the gravity drop hammers are operated by a ram using steam or pressurized air. |
| A. | true |
| B. | false |
| Answer» C. | |
| 114. |
Which of the following manufacturing processes is mainly considered for producing the components of very high strength? |
| A. | casting |
| B. | forging |
| C. | extrusion |
| D. | rolling |
| Answer» C. extrusion | |
| 115. |
Which of the following processes is not the type of bulk forming process in the metal forming? |
| A. | bending |
| B. | rolling |
| C. | forging |
| D. | extrusion |
| Answer» B. rolling | |
| 116. |
Metal forming is a process in which the metal is deformed plastically to get into the desired shape. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 117. |
Which of the following metal forming processes performs squeezing out of material through a hole? |
| A. | forging |
| B. | rolling |
| C. | drawing |
| D. | extrusion |
| Answer» E. | |
| 118. |
The metal forging operation can only be performed by manual means. |
| A. | true |
| B. | false |
| Answer» C. | |
| 119. |
Forming is a process that changes the shape of the metal by changing its phase. |
| A. | true |
| B. | false |
| Answer» C. | |
| 120. |
Rubber forming is a type of forming process in which polyurethane is used as a die material. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 121. |
Tangential stretch forming and simple stretch forming are quite similar to each other. |
| A. | true |
| B. | false |
| Answer» C. | |
| 122. |
The stretch forming process is generally performed by using a hydraulic operated ram. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 123. |
Stretch forming is a process which involves tensile and bending forces during the operation. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 124. |
High volume rate of production can be possible by stretch sheet metal forming process. |
| A. | true |
| B. | false |
| Answer» C. | |
| 125. |
Which of the following processes of metal forming is best suited for making products like aircraft wings and window frames? |
| A. | forging |
| B. | rolling |
| C. | drawing |
| D. | stretch forming |
| Answer» E. | |
| 126. |
In stretch forming, forming limit curve (FLC) is defined as a locus of all the limit strains in different strain paths of the sheet metal. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 127. |
The centre of the extruded product can develop cracks called as? |
| A. | centre cracking |
| B. | centre burst |
| C. | arrow headed fracture |
| D. | all of the mentioned |
| Answer» E. | |
| 128. |
For proper stretching operation, the metal sheet should be stressed above its yield strength. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 129. |
Which of the following defect is also known as fish tailing? |
| A. | surface cracking |
| B. | pipe defect |
| C. | tearing |
| D. | internal cracking |
| Answer» C. tearing | |
| 130. |
Which of the following defect tends to draw surface oxides and impurities towards the centre of billet? |
| A. | blow hole |
| B. | cold shut |
| C. | surface cracking |
| D. | pipe defect |
| Answer» E. | |
| 131. |
Which of the following defect is also known as bamboo defect? |
| A. | blow hole |
| B. | cold shut |
| C. | surface cracking |
| D. | pipe defect |
| Answer» D. pipe defect | |
| 132. |
Which defect arises due to high friction or high speed? |
| A. | tearing |
| B. | surface cracking |
| C. | tearing & surface cracking |
| D. | flaking |
| Answer» D. flaking | |
| 133. |
Extrusion is similar to? |
| A. | rolling |
| B. | forming |
| C. | welding |
| D. | casting |
| Answer» B. forming | |
| 134. |
In which of the following process fluid medium is used to apply the load on the billet? |
| A. | direct |
| B. | indirect |
| C. | impact |
| D. | hydrostatic |
| Answer» E. | |
| 135. |
In which of the following process frictional loss is eliminated at the billet container interface? |
| A. | direct |
| B. | indirect |
| C. | impact |
| D. | hydrostatic |
| Answer» E. | |
| 136. |
In direct extrusion process at higher temperature which of the following is used to avoid friction? |
| A. | oil |
| B. | lubricants |
| C. | molten glasses |
| D. | wax |
| Answer» D. wax | |
| 137. |
Which of the following is a type of extrusion process? |
| A. | direct |
| B. | indirect |
| C. | impact |
| D. | all of the mentioned |
| Answer» E. | |
| 138. |
When forming “Z†sections, the product is twisted in the opposite direction to compensate the machine generated twist. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 139. |
When an asymmetrical section is roll formed, the finished product will have |
| A. | camber |
| B. | cross-bow |
| C. | a twist |
| D. | waviness |
| Answer» D. waviness | |
| 140. |
What is camber in roll forming? |
| A. | deviation of the strip edge from a straight line in horizontal plane |
| B. | deviation of the strip edge from a straight line in vertical plane |
| C. | difference in theoretical and actual elongation of the strip |
| D. | waviness of the strip |
| Answer» B. deviation of the strip edge from a straight line in vertical plane | |
| 141. |
During roll forming, the strain (elongation) of the outside edge fiber of the strip must remain below the uniform engineering strain (elastic limit). |
| A. | true |
| B. | false |
| Answer» B. false | |
| 142. |
What will be the elongation if a 1in high section is formed in four passes in a mill having a horizontal distance (between passes) of 14in? |
| A. | 0.04% |
| B. | 0.16% |
| C. | 0.63% |
| D. | 0.50% |
| Answer» B. 0.16% | |
| 143. |
What is “leg length†or “leg height� |
| A. | the maximum vertical dimension of the profile |
| B. | total length of the product |
| C. | excess length of the product |
| D. | maximum width of the section |
| Answer» B. total length of the product | |
| 144. |
Which of the following is true in case of “too quick†forming (too few passes)? |
| A. | it makes the tooling and the process uneconomical |
| B. | it makes process easier |
| C. | it distorts the product |
| D. | eliminate the need of a skilled operator |
| Answer» D. eliminate the need of a skilled operator | |
| 145. |
Which of following is necessary in order to have a good set of rolls? |
| A. | short horizontal distances |
| B. | small lead-in flanges |
| C. | a smooth flow of material |
| D. | less number of forming passes |
| Answer» D. less number of forming passes | |
| 146. |
During roll forming, a flat strip is passed number of times through the rollers. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 147. |
The metal forging operation can be performed manually or by automation. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 148. |
In open die forging process, homogenous deformation of billet has occurred with uniform increase in its diameter. |
| A. | true |
| B. | false |
| Answer» C. | |
| 149. |
Which of the following processes is mainly used for making the connecting rods? |
| A. | casting |
| B. | deep drawing |
| C. | rolling |
| D. | forging |
| Answer» E. | |
| 150. |
Isothermal forging is also known as cold forging operation. |
| A. | true |
| B. | false |
| Answer» C. | |