MCQOPTIONS
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MCQOPTIONS
This section includes 815 Mcqs, each offering curated multiple-choice questions to sharpen your Production Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
As far as machinability is concerned, which of the following will be considered to be most inferior alloy? |
| A. | Malleable cast iron |
| B. | Parting off |
| C. | Monel metal |
| D. | Gun metal |
| E. | Bearing bronze |
| Answer» D. Gun metal | |
| 152. |
Which of the following machine is likely to be extensively used in a workshop manufacturing wire nails? |
| A. | Lathe |
| B. | Broaching machine |
| C. | Drilling machine |
| D. | Power press |
| E. | Cold heading machine |
| Answer» F. | |
| 153. |
Out of the following tools which one is expected to have highest carbon percentage |
| A. | Crowbar |
| B. | Ordinary file |
| C. | Circular saw |
| D. | Pliers |
| E. | Wrenches |
| Answer» C. Circular saw | |
| 154. |
Riser is generally located |
| A. | near the parting line |
| B. | on the upper most section of the casting |
| C. | Parting off |
| D. | opposite to the pouring end |
| E. | near the deepest section of the mould |
| Answer» C. Parting off | |
| 155. |
Which of the following plate can be used for milling the sides of a hexagon nut? |
| A. | Parting off |
| B. | 3 hole circle plate |
| C. | 45 hole circle plate |
| D. | 55 hole circle plate |
| E. | 24 hole circle plate |
| Answer» F. | |
| 156. |
Shearing strain in the chip at shear plane is |
| A. | tan (? + ?) + cot ? |
| B. | tan (? - ?) - tan ? |
| C. | Infinite clearance |
| D. | tan (? - ?) + cot ? |
| E. | tan (? - ?) + tan ? |
| Answer» E. tan (? - ?) + tan ? | |
| 157. |
Taper gererally used in lathes now-a-days is |
| A. | Jarno |
| B. | Morse |
| C. | Brown and sharpe |
| D. | None of above |
| E. | Parkinson |
| Answer» C. Brown and sharpe | |
| 158. |
Porosity of a welded joint may be caused by |
| A. | Poor base metal |
| B. | Low welding current |
| C. | High welding current |
| D. | Wrong size of electrode |
| E. | None of the above |
| Answer» B. Low welding current | |
| 159. |
Press die life is gauged by |
| A. | loss in weight |
| B. | amount of burr produced |
| C. | change of colour |
| D. | Any of the above |
| E. | Parting off |
| Answer» C. change of colour | |
| 160. |
In machine tools normally spindle speeds vary in |
| A. | Arithmetical progression |
| B. | Geometrical progression |
| C. | Exponential progression |
| D. | Logarithmic progression |
| E. | None of the above |
| Answer» C. Exponential progression | |
| 161. |
Hardest abrasive is |
| A. | Aluminium oxide |
| B. | Silicon carbide |
| C. | Boron carbide |
| D. | Diamond |
| E. | Tungsten oxide |
| Answer» E. Tungsten oxide | |
| 162. |
In which operation on a work piece on lathe the spindle speed with be least? |
| A. | Plain turning |
| B. | Thread cutting |
| C. | Taper turning |
| D. | Finishing |
| E. | Parting off |
| Answer» C. Taper turning | |
| 163. |
In which of the following process hydraulic fluid acts as transfer media? |
| A. | Ultrasonic machining |
| B. | Electron beam machining |
| C. | Water jet machining |
| D. | Iron beam machining |
| E. | Electro discharge machining |
| Answer» D. Iron beam machining | |
| 164. |
The process for producing smooth surfaces by plastically moving away the raised micro-irregularities on the surface and passing it into the microcavities is known as |
| A. | Buffing |
| B. | Super finishing |
| C. | Burnishing |
| D. | Tumbling |
| E. | Polishing |
| Answer» D. Tumbling | |
| 165. |
Which one of the following methods be used for turning internal tapers only? |
| A. | Taper attachment |
| B. | Reamer |
| C. | Form tool |
| D. | Compound rest |
| E. | Tailstock offset |
| Answer» B. Reamer | |
| 166. |
Point angle of 90? is used on drills for drilling on |
| A. | Parting off |
| B. | brass |
| C. | bakelite |
| D. | very hard materials |
| E. | aluminium |
| Answer» D. very hard materials | |
| 167. |
Which of the following is not a shearing process? |
| A. | Notching |
| B. | Perforating |
| C. | Lancing |
| D. | Blanking |
| E. | Embossing |
| Answer» F. | |
| 168. |
Which of the following is dead soft steel? |
| A. | Parting off |
| B. | C 45 |
| C. | 11 Mn 2 |
| D. | C 04 |
| E. | 33 Mo 55. |
| Answer» E. 33 Mo 55. | |
| 169. |
The machining allowance provided on pattern depends on |
| A. | The casting orientation |
| B. | Size and shape of casting |
| C. | Degree of accuracy required |
| D. | All of the above |
| E. | None of above |
| Answer» E. None of above | |
| 170. |
Cutting speed in turning operations is maximum in case of |
| A. | Cast iron |
| B. | Mild steel |
| C. | Aluminium |
| D. | Bronze |
| E. | Brass |
| Answer» D. Bronze | |
| 171. |
Mould washes are used to produce |
| A. | castings with different hardnesses at different locations |
| B. | smooth surface on castings |
| C. | castings with symmetrical sections |
| D. | None of the above |
| E. | Parting off |
| Answer» C. castings with symmetrical sections | |
| 172. |
For which of the following material TIG welding is preferred? |
| A. | Gold |
| B. | Stainless steel |
| C. | Mild steel |
| D. | Silver |
| E. | Aluminium |
| Answer» F. | |
| 173. |
The speed of grinding wheel is limited by |
| A. | type of bond |
| B. | grinding operation |
| C. | rigidity of grinding machine |
| D. | All of the above |
| E. | Parting off |
| Answer» E. Parting off | |
| 174. |
The limitation of electronically operated automatic control system is |
| A. | Considerable time lag |
| B. | Poor accuracy |
| C. | Complicated control response |
| D. | It requires eloborate protection in hazardous locations |
| E. | Serious effect of ambient conduction |
| Answer» E. Serious effect of ambient conduction | |
| 175. |
Folding process of edges of the sheet metal is termed as |
| A. | Bending |
| B. | Seaming |
| C. | Hemming |
| D. | Parting off |
| Answer» E. | |
| 176. |
The surface accuracy of slip gauges is of the order of |
| A. | 0.02 |
| B. | 0.0002 |
| C. | 0.002 |
| D. | 0.2 |
| E. | 0.00002 |
| Answer» B. 0.0002 | |
| 177. |
The equal percentage characteristic of a valve is |
| A. | Uniform flow rate |
| B. | Flow rate proportional to valve lift |
| C. | Each increment of plug movement produces a change in flow which is proportional to the amount flowing before the change occurred |
| D. | Percentage increase in flow is equal to the percentage increase in lift |
| E. | The flow rate before the plug movement is equal to the flow rate after the movement |
| Answer» D. Percentage increase in flow is equal to the percentage increase in lift | |
| 178. |
Preheating is usually done while welding |
| A. | Cast iron |
| B. | Aluminium |
| C. | Thin sheets of mild steel |
| D. | Thick sheets of mild steel |
| E. | Copper |
| Answer» B. Aluminium | |
| 179. |
The length of a hacksaw blade is measured from |
| A. | Centre of hole at one end to the centre of hole at the other end |
| B. | None of these |
| C. | The formula L = 16 x width |
| D. | Extreme one to-extreme end |
| E. | 1830 rpm |
| Answer» B. None of these | |
| 180. |
As per ISS a steel specified as T 75 W 18 Co 10 Cr 4V2 will not have (as constituent) |
| A. | Cobalt |
| B. | Chromium |
| C. | Vanadium |
| D. | Electrical stampings |
| E. | Copper |
| Answer» F. | |
| 181. |
A process applying oxide coating on aluminium is known as |
| A. | Anodizing |
| B. | Oxidizing |
| C. | Pickering |
| D. | Galvanising |
| E. | Blanking |
| Answer» B. Oxidizing | |
| 182. |
The usual ratio of forward and return stroke in shaper is |
| A. | 2 ; 3 |
| B. | 3 ; 2 |
| C. | 4 ; 3 |
| D. | 1 ; 2 |
| E. | 3 ; 4 |
| Answer» C. 4 ; 3 | |
| 183. |
The advantage of mercury switch is |
| A. | No mechanical moving parts |
| B. | No open contacts |
| C. | Sealed from dirt and contamination |
| D. | Maintanance free |
| E. | All of the above |
| Answer» F. | |
| 184. |
Arc blow is a welding defect which is encountered |
| A. | In thermit welding |
| B. | In MIG welding |
| C. | In arc welding using a.c. current |
| D. | In arc welding using d.c. current |
| E. | In gas welding |
| Answer» E. In gas welding | |
| 185. |
Die sinking is |
| A. | The process of hardening of dies by sinking in quenching oil |
| B. | The local cooling of dies on the dia surface by pouring oil on the spot |
| C. | The process of cutting die impression |
| D. | The process of scrapping a die impression so that remaining metal may be retrieved for further use |
| E. | None of the above |
| Answer» D. The process of scrapping a die impression so that remaining metal may be retrieved for further use | |
| 186. |
The difference between a plate and sheet is |
| A. | A plate is less than 5 mm in thickness |
| B. | A sheet is more than 5 mm in thickness |
| C. | A sheet is always more than 5 metres in length |
| D. | Sheet and plate are same and thickness is immaterial |
| E. | A sheet is always less than 5 mm thick and a plate more than 5 mm thick |
| Answer» F. | |
| 187. |
In all the following case chips produced are in the form of fragments EXCEPT |
| A. | Trepanning of steel |
| B. | Facing of bronze |
| C. | Shaping of cast iron |
| D. | Milling of aluminium |
| E. | Parting off |
| Answer» B. Facing of bronze | |
| 188. |
An idler pulley is used for |
| A. | Changing the direction of rotation |
| B. | Running during no load period |
| C. | For stopping the motion frequently |
| D. | For adjusting the belt tension |
| E. | None of the above |
| Answer» E. None of the above | |
| 189. |
Kuock out mechanism in press is used to |
| A. | chamfer the edges |
| B. | eject out the component |
| C. | shift the position of work piece after one operation |
| D. | None of the above |
| E. | Parting off |
| Answer» C. shift the position of work piece after one operation | |
| 190. |
The advantage of electronically operated automatic control system is |
| A. | Can be located in hazardous locations |
| B. | Needs no maintenance |
| C. | Does not require skilled service personnel |
| D. | No time lags, no transmission delays |
| E. | Does not cost much |
| Answer» E. Does not cost much | |
| 191. |
A thin tube is to be cut by hacksawing. Blades with following TPI are available which blade will be appropriate for the job |
| A. | 14 TPI |
| B. | 4- TPI |
| C. | 18 TPI |
| D. | 32 TPI |
| E. | 20 TPI |
| Answer» E. 20 TPI | |
| 192. |
The purpose of sometimes adding exothermic materials to sand is |
| A. | To dry the mould |
| B. | To produce directional solidification by the generation of heat |
| C. | To produce chilled surfaces |
| D. | To heat the core |
| E. | To heat the sand |
| Answer» C. To produce chilled surfaces | |
| 193. |
Folding of edges of the sheet metal is done to |
| A. | Parting off |
| B. | To make the product stronger |
| C. | To make the product attractive |
| D. | Strengthen the edges and eliminate the sharp edges |
| Answer» E. | |
| 194. |
EN series is used to designate |
| A. | aluminium alloys |
| B. | steels |
| C. | organic materials |
| D. | Parting off |
| E. | copper alloys |
| Answer» C. organic materials | |
| 195. |
The material for worm wheels is usually |
| A. | Bronze |
| B. | Cast iron |
| C. | Copper |
| D. | Aluminium |
| E. | Cast steel |
| Answer» B. Cast iron | |
| 196. |
During arc welding if the current is too low, it is likely to result in |
| A. | Poor penetration |
| B. | Excess piling up of weld metal |
| C. | Excessive electrode consumption |
| D. | All of the above |
| E. | None |
| Answer» E. None | |
| 197. |
Loam moulds are |
| A. | Used for symmetrical castings |
| B. | Used in centrifugal castings |
| C. | Used for very small articles |
| D. | Made out of wet sand and then skin dried |
| E. | Used for large castings |
| Answer» F. | |
| 198. |
The disadvantage of die casting process is |
| A. | Cost is less |
| B. | Surface finish is poor |
| C. | Heavy section can be easily cast |
| D. | High production rates are not possible |
| E. | Only certain non-ferrous alloys can be cast economically |
| Answer» F. | |
| 199. |
In die casting process |
| A. | The cost of dies is generally insignificant |
| B. | Very high production rates are possible |
| C. | Any size of casting can be prepared |
| D. | Any metal can be cast |
| E. | Dimensional accuracy is immaterial |
| Answer» C. Any size of casting can be prepared | |
| 200. |
Which of the following provides an additional projection on a pattern and also forms a seat to support and locate the core in the mould? |
| A. | Head |
| B. | Mould print |
| C. | |
| D. | Check |
| E. | Core print |
| Answer» F. | |