MCQOPTIONS
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MCQOPTIONS
This section includes 455 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
The operation of bending a sheet of metal along a curved axis, is known as%! |
| A. | Plunging |
| B. | Notching |
| C. | Slitting |
| D. | Forming |
| Answer» E. | |
| 202. |
Seam welding is best adopted for metal thickness ranging from%! |
| A. | 0.025 to 3 mm |
| B. | 3 to 5 mm |
| C. | 5 to 8 mm |
| D. | 8 to 10 mm |
| Answer» B. 3 to 5 mm | |
| 203. |
The property of sand due to which the sand grains stick together is called%! |
| A. | Collapsibility |
| B. | Permeability |
| C. | Cohesiveness |
| D. | Adhesiveness |
| Answer» D. Adhesiveness | |
| 204. |
The surface to be machined is marked on the pattern by%! |
| A. | Red colour |
| B. | Yellow colour |
| C. | Black colour |
| D. | Blue colour |
| Answer» B. Yellow colour | |
| 205. |
In electric resistance welding, pressure applied varies from%! |
| A. | 1 to 5 MPa |
| B. | 5 to 10 MPa |
| C. | 10 to 25 MPa |
| D. | 25 to 55 MPa |
| Answer» E. | |
| 206. |
For gas welding, the pressure desired at the welding torch for oxygen is%! |
| A. | 7 to 103 kN/m² |
| B. | 70 to 280 kN/m² |
| C. | 280 to 560 kN/m² |
| D. | 560 to 840 kN/m² |
| Answer» C. 280 to 560 kN/m¬¨‚⧠| |
| 207. |
An oxidising process used for aluminium and magnesium articles is called%! |
| A. | Galvanizing |
| B. | Anodizing |
| C. | Parkerising |
| D. | Sherardizing |
| Answer» C. Parkerising | |
| 208. |
Seam welding is a%! |
| A. | Continuous spot welding process |
| B. | Multi-spot welding process |
| C. | Arc welding process |
| D. | Process used for joining round bars |
| Answer» B. Multi-spot welding process | |
| 209. |
A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as%! |
| A. | Shift |
| B. | Sand wash |
| C. | Swell |
| D. | Scab |
| Answer» C. Swell | |
| 210. |
A ring gauge is used to%! |
| A. | Check the diameter of shafts or studs |
| B. | Test the accuracy of holes |
| C. | Check the clearance between two mating surfaces |
| D. | All of the above |
| Answer» B. Test the accuracy of holes | |
| 211. |
Which of the following material can be used for making patterns?%! |
| A. | Aluminium |
| B. | Wax |
| C. | Lead |
| D. | All of these |
| Answer» E. | |
| 212. |
A hacksaw blade is specified by its%! |
| A. | Length |
| B. | Material |
| C. | Width |
| D. | Number of teeth |
| Answer» B. Material | |
| 213. |
Lancing is the operation of%! |
| A. | Cutting a sheet of metal in a straight line along the length |
| B. | Removal of metal to the desired shape from the edge of a plate |
| C. | Cutting a sheet of metal through part of its length and then bending the cut portion |
| D. | Bending a sheet of metal along a curved axis |
| Answer» D. Bending a sheet of metal along a curved axis | |
| 214. |
Spot welding is used for welding%! |
| A. | Lap joints in plates having 0.025 mm to 1.25 mm thickness |
| B. | Lap joints in plates having thickness above 3 mm |
| C. | Butt joints in plates having 0.025 mm to 1.25 mm thickness |
| D. | Butt joints in plates having thickness above 3 mm |
| Answer» B. Lap joints in plates having thickness above 3 mm | |
| 215. |
When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.%! |
| A. | Horizontal core |
| B. | Vertical core |
| C. | Drop core |
| D. | Balanced core |
| Answer» D. Balanced core | |
| 216. |
A jolt machine is used to%! |
| A. | Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould |
| B. | Ram the sand harder at the back of the mould and softer on the pattern face |
| C. | Produce uniform sand hardness throughout the mould |
| D. | Produce uniform packing of sand in the mould |
| Answer» B. Ram the sand harder at the back of the mould and softer on the pattern face | |
| 217. |
The oxygen cylinder is usually painted with%! |
| A. | Black colour |
| B. | White colour |
| C. | Maroon colour |
| D. | Yellow colour |
| Answer» B. White colour | |
| 218. |
*$_The oxyacetylene gas used in gas welding produce a flame temperature of? |
| A. | 1800°C |
| B. | 2100°C |
| C. | 2400°C |
| D. | 3200°C |
| Answer» E. | |
| 219. |
*$_Riddle is used for? |
| A. | Smoothing and cleaning out depressions in the mould |
| B. | Cleaning the moulding sand |
| C. | Moistening the sand around the edge before removing pattern |
| D. | Reinforcement of sand in the top part of moulding box |
| Answer» C. Moistening the sand around the edge before removing pattern | |
| 220. |
*$_A neutral flame is obtained by supplying? |
| A. | Equal volumes of oxygen and acetylene |
| B. | More volume of oxygen and less volume of acetylene |
| C. | More volume of acetylene and less volume of oxygen |
| D. | None of the above |
| Answer» B. More volume of oxygen and less volume of acetylene | |
| 221. |
*$_The binder commonly used in making oil sand, is? |
| A. | Clay type binder |
| B. | Organic type binder |
| C. | Inorganic type binder |
| D. | Any one of these |
| Answer» C. Inorganic type binder | |
| 222. |
*$_The process of increasing the cross-section of a bar at the expense of its length, is called? |
| A. | Drawing down |
| B. | Upsetting |
| C. | Spinning |
| D. | Peening |
| Answer» C. Spinning | |
| 223. |
*$_The purpose of a gate is to? |
| A. | Delivers molten metal into the mould cavity |
| B. | Act as a reservoir for the molten metal |
| C. | Feed the molten metal to the casting in order to compensate for the shrinkage |
| D. | Delivers molten metal from pouring basin to gate |
| Answer» B. Act as a reservoir for the molten metal | |
| 224. |
*$_In a hot chamber die casting machine? |
| A. | Ferrous alloys with low melting temperature are casted |
| B. | Ferrous alloys with high melting temperature are casted |
| C. | Nonferrous alloys with low melting temperature are casted |
| D. | Nonferrous alloys with high melting temperature are casted |
| Answer» D. Nonferrous alloys with high melting temperature are casted | |
| 225. |
*$_The temperature produced by oxy-hydrogen flame is about? |
| A. | 1800°C |
| B. | 2100°C |
| C. | 2400°C |
| D. | 3200°C |
| Answer» D. 3200¬¨‚àûC | |
| 226. |
*$_To prevent the body of the blade from jamming in the saw cut, the teeth of blade are? |
| A. | Strengthened |
| B. | Sharpened |
| C. | Set |
| D. | All of these |
| Answer» D. All of these | |
| 227. |
*$_The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as? |
| A. | Drawing |
| B. | Squeezing |
| C. | Coining |
| D. | Planishing |
| Answer» B. Squeezing | |
| 228. |
*$_The metal patterns as compared to wooden patterns require less? |
| A. | Shrinkage allowance |
| B. | Machining allowance |
| C. | Draft allowance |
| D. | Distortion allowance |
| Answer» D. Distortion allowance | |
| 229. |
*$_A basic shaft is one whose? |
| A. | Lower deviation is zero |
| B. | Upper deviation is zero |
| C. | Lower and upper deviations are zero |
| D. | None of these |
| Answer» C. Lower and upper deviations are zero | |
| 230. |
*$_In backhand welding, the angle between the welding rod and the work is ________ as compared to forehand welding.? |
| A. | Same |
| B. | Less |
| C. | More |
| D. | None of these |
| Answer» B. Less | |
| 231. |
*/*_During drawing operation, the states of stress in cup would include? |
| A. | Compressive stress in the flange |
| B. | Tensile stress in the wall |
| C. | Both (A) and (B) |
| D. | None of these |
| Answer» D. None of these | |
| 232. |
*/*_In piercing operation, the clearance is provided on? |
| A. | Punch |
| B. | Die |
| C. | Half on the punch and half on the die |
| D. | Either on punch or die depending upon designer's choice |
| Answer» C. Half on the punch and half on the die | |
| 233. |
*/*_V-block is used to? |
| A. | Check the trueness of flat surfaces |
| B. | Locate centres of round rods |
| C. | Check the surface roughness |
| D. | None of these |
| Answer» E. | |
| 234. |
*/*_The operation of bending a sheet of metal along a curved axis, is known as? |
| A. | Plunging |
| B. | Notching |
| C. | Slitting |
| D. | Forming |
| Answer» E. | |
| 235. |
*/*_A ring gauge is used to? |
| A. | Check the diameter of shafts or studs |
| B. | Test the accuracy of holes |
| C. | Check the clearance between two mating surfaces |
| D. | All of the above |
| Answer» B. Test the accuracy of holes | |
| 236. |
*/*_A hacksaw blade is specified by its? |
| A. | Length |
| B. | Material |
| C. | Width |
| D. | Number of teeth |
| Answer» B. Material | |
| 237. |
*/*_Which of the following material can be used for making patterns?? |
| A. | Aluminium |
| B. | Wax |
| C. | Lead |
| D. | All of these |
| Answer» E. | |
| 238. |
*/*_Spot welding is used for welding? |
| A. | Lap joints in plates having 0.025 mm to 1.25 mm thickness |
| B. | Lap joints in plates having thickness above 3 mm |
| C. | Butt joints in plates having 0.025 mm to 1.25 mm thickness |
| D. | Butt joints in plates having thickness above 3 mm |
| Answer» B. Lap joints in plates having thickness above 3 mm | |
| 239. |
*/*_Lancing is the operation of? |
| A. | Cutting a sheet of metal in a straight line along the length |
| B. | Removal of metal to the desired shape from the edge of a plate |
| C. | Cutting a sheet of metal through part of its length and then bending the cut portion |
| D. | Bending a sheet of metal along a curved axis |
| Answer» D. Bending a sheet of metal along a curved axis | |
| 240. |
*/*_A jolt machine is used to? |
| A. | Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould |
| B. | Ram the sand harder at the back of the mould and softer on the pattern face |
| C. | Produce uniform sand hardness throughout the mould |
| D. | Produce uniform packing of sand in the mould |
| Answer» B. Ram the sand harder at the back of the mould and softer on the pattern face | |
| 241. |
*/*_When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.? |
| A. | Horizontal core |
| B. | Vertical core |
| C. | Drop core |
| D. | Balanced core |
| Answer» D. Balanced core | |
| 242. |
*/*_The oxygen cylinder is usually painted with? |
| A. | Black colour |
| B. | White colour |
| C. | Maroon colour |
| D. | Yellow colour |
| Answer» B. White colour | |
| 243. |
*/*_The accuracy of micrometers, calipers, dial indicators can be checked by a? |
| A. | Feeler gauge |
| B. | Slip gauge |
| C. | Ring gauge |
| D. | Plug gauge |
| Answer» C. Ring gauge | |
| 244. |
*/*_The operation of cutting of a flat sheet to the desired shape is called? |
| A. | Shearing |
| B. | Piercing |
| C. | Punching |
| D. | Blanking |
| Answer» E. | |
| 245. |
*/*_For obtaining a cup of diameter 25 mm and height 15 mm by drawing, the size of the round blank should be approximately? |
| A. | 42 mm |
| B. | 44 mm |
| C. | 46 mm |
| D. | 48 mm |
| Answer» D. 48 mm | |
| 246. |
*/*_An oxidising process used for aluminium and magnesium articles is called? |
| A. | Galvanizing |
| B. | Anodizing |
| C. | Parkerising |
| D. | Sherardizing |
| Answer» C. Parkerising | |
| 247. |
*/*_For gas welding, the pressure desired at the welding torch for oxygen is? |
| A. | 7 to 103 kN/m² |
| B. | 70 to 280 kN/m² |
| C. | 280 to 560 kN/m² |
| D. | 560 to 840 kN/m² |
| Answer» C. 280 to 560 kN/m¬¨‚⧠| |
| 248. |
*/*_A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as? |
| A. | Shift |
| B. | Sand wash |
| C. | Swell |
| D. | Scab |
| Answer» C. Swell | |
| 249. |
*/*_Seam welding is a? |
| A. | Continuous spot welding process |
| B. | Multi-spot welding process |
| C. | Arc welding process |
| D. | Process used for joining round bars |
| Answer» B. Multi-spot welding process | |
| 250. |
*/*_During hot working of metals? |
| A. | Porosity of the metal is largely eliminated |
| B. | Grain structure of the metal is refined |
| C. | Mechanical properties are improved due to refinement of grains |
| D. | All of the above |
| Answer» E. | |