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MCQOPTIONS
This section includes 2670 Mcqs, each offering curated multiple-choice questions to sharpen your Railways knowledge and support exam preparation. Choose a topic below to get started.
| 1101. |
Match List-I with List-II and select the correct answer using the codes given below the lists: List-I (Heat treatment) List-II (Effect on the properties) A. Annealing 1. Refined grain structure B. Nitriding 2. Improves the hardness of the whole mass C. Martempering 3. Increases surface hardness D. Normalizing 4. Improves ductility. Codes: |
| A. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| B. | A\[\to \]1, B\[\to \]3, C\[\to \]4, D\[\to \]2 |
| C. | A\[\to \]4, B\[\to \]2, C\[\to \]1, D\[\to \]3 |
| D. | A\[\to \]2, B\[\to \]1, C\[\to \]3, D\[\to \]4 |
| Answer» B. A\[\to \]1, B\[\to \]3, C\[\to \]4, D\[\to \]2 | |
| 1102. |
Consider the following statements: Addition of silicon to cast iron 1. Promotes graphite module formation. 2. Promotes graphite flake formation. 3. Increases the fluidity of the molten metal. 4. Improves the ductility of cast iron. Of these statements: |
| A. | 1 and 4 are correct |
| B. | 2 and 3 are correct |
| C. | 1 and 3 are correct |
| D. | 3 and 4 are correct. |
| Answer» C. 1 and 3 are correct | |
| 1103. |
In low carbon steels, presence of small quantities sulphur improves: |
| A. | weldability |
| B. | formability |
| C. | Machinability |
| D. | hardenability. |
| Answer» D. hardenability. | |
| 1104. |
Which of the following pairs are correctly matched? 1. Lead.......... screw nutphosphor bronze. 2. Piston..........cast iron. 3. Cam..........EN-31 steel. 4. Lead screw..........wrought iron. Select the correct answer using the codes given below: |
| A. | 2, 3 and 4 |
| B. | 1, 3 and 4 |
| C. | 1, 2 and 4 |
| D. | 1, 2 and 3 |
| Answer» C. 1, 2 and 4 | |
| 1105. |
Match List-I (materials) With List-II (applications) and select the correct answer using the codes given below the lists: List-I List-II A. Engineering ceramics 1. Bearings B. Fiber reinforced 2. Control plastics rods in nuclear reactors C. Synthetic carbon 3. Aerospace industry D. Boron 4. Electrical insulator Codes: |
| A. | A\[\to \]1, B\[\to \]2, C\[\to \]3, D\[\to \]4 |
| B. | A\[\to \]1, B\[\to \]4, C\[\to \]3, D\[\to \]2 |
| C. | A\[\to \]2, B\[\to \]3, C\[\to \]1, D\[\to \]4 |
| D. | A\[\to \]4, B\[\to \]3, C\[\to \]1, D\[\to \]2 |
| Answer» E. | |
| 1106. |
Cubic boron nitride is used: |
| A. | As lining material in induction furnaces |
| B. | For making optical quality glass |
| C. | For heat treatments |
| D. | as/for none of the above |
| Answer» E. | |
| 1107. |
Which of the following pairs of plastic and their modes of formation are correctly matched? 1. Polythene ............. condensation polymerization 2. Polycarbonate............ addition polymerization 3. Polystyrene .............addition polymerization 4. Polyamide..........either by addition or by condensation polymerization. Select the correct answer using the codes given below: Codes: |
| A. | 1 and 2 |
| B. | 2 and 4 |
| C. | 1 and 4 |
| D. | 3 and 4 |
| Answer» E. | |
| 1108. |
Which of following pairs are correctly matched? 1. Silicon steels .......... transformer stamping 2. Duralumin .......... cooking utensils 3. Gun metal.........bearings. Select the correct answer using the codes given below: Codes: |
| A. | 1, 2, and 3 |
| B. | 1 and 2 |
| C. | 1 and 3 |
| D. | 2 and 3 |
| Answer» D. 2 and 3 | |
| 1109. |
Killed steels: |
| A. | Have minimum impurity level |
| B. | Have almost zero percentage of phosphorus and sulphur |
| C. | Are produced by LD process |
| D. | Are free from oxygen. |
| Answer» E. | |
| 1110. |
Consider the following treatments: 1. Normalizing 2. Hardening 3. Martempering 4. Cold working. Hardness and tensile strength in austenitic stainless steel can be increased by: |
| A. | 1, 2 and 3 |
| B. | 1 and 3 |
| C. | 2 and 4 |
| D. | 4 alone |
| Answer» E. | |
| 1111. |
Which of the following pairs are correctly matched? 1. Resilience........... resistance to deformation 2. Malleability ............ shape change 3. Creep........... progressive deformation 4. Plasticity.............. permanent deformation Select the answer using codes given below: Codes: |
| A. | 2, 3 and 4 |
| B. | 1, 2 and 3 |
| C. | 1, 2 and 4 |
| D. | 1, 3 and 4 |
| Answer» E. | |
| 1112. |
Quartz is a: |
| A. | Ferroelectric material |
| B. | Ferromagnetic material |
| C. | Piezoelectric material |
| D. | Diamagnetic material. |
| Answer» D. Diamagnetic material. | |
| 1113. |
Which of the following pairs arc correctly matched? 1. Cellulose nitrate..........Table tenis ball. 2. Phenol furfurol...........Brake linings. 3. Kpoxits ..........Jigs and fixtures. Select the correct answer using the codes given below: Codes: |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | 1, 2 and 3 |
| Answer» B. 2 and 3 | |
| 1114. |
The blade of a power saw is made of: |
| A. | Boron steel |
| B. | high speed steel |
| C. | Stainless steel |
| D. | malleable cast iron |
| Answer» C. Stainless steel | |
| 1115. |
Eutectic reaction for iron-carbon system occurs at: |
| A. | \[600{}^\circ C\] |
| B. | \[723{}^\circ C\] |
| C. | \[1147{}^\circ C\] |
| D. | \[1493{}^\circ C\] |
| Answer» C. \[1147{}^\circ C\] | |
| 1116. |
Duralumin alloy contains aluminium and copper in the ratio of: |
| A. | % AI % Cu 94 4 |
| B. | % AI % Cu 90 8 |
| C. | % AI % Cu 88 10 |
| D. | % AI % Cu 86 12 |
| Answer» B. % AI % Cu 90 8 | |
| 1117. |
Which of the following statements are true of annealing of steels? (1) Steels are heated to 500 to \[700{}^\circ C\] (2) Cooling is done slowly and steadily (3) Internal stresses are relieved (4) Ductility of steel is reduced. Select the correct answer using the codes given below: |
| A. | 2, 3 and 4 |
| B. | 1, 3and 4 |
| C. | 1, 2 and 4 |
| D. | 1, 2 and 3. |
| Answer» E. | |
| 1118. |
A carbon steel having Brinell Hardness number 100 should have ultimate tensile strength closer to: |
| A. | \[1000\,\,\text{N/m}{{\text{m}}^{\text{2}}}\] |
| B. | \[200\,\,\text{N/m}{{\text{m}}^{\text{2}}}\] |
| C. | \[350\,\,\text{N/m}{{\text{m}}^{\text{2}}}\] |
| D. | \[1000\,\,\text{N/m}{{\text{m}}^{\text{2}}}\] |
| Answer» D. \[1000\,\,\text{N/m}{{\text{m}}^{\text{2}}}\] | |
| 1119. |
Match List-I with List-II and select the correct answer using the codes given be lists: List-I (Steel type) List-II (Product) A. Mild steel 1. Screw driver B. Tool steel 2. Commercial beams C. Medium carbon steel 3. Crane hooks D. High carbon steel 4. Blanking dies Codes: |
| A. | A\[\to \]1, B\[\to \]4, C\[\to \]3, D\[\to \]4 |
| B. | A\[\to \]2, B\[\to \]4, C\[\to \]4, D\[\to \]1 |
| C. | A\[\to \]1, B\[\to \]3, C\[\to \]1, D\[\to \]2 |
| D. | A\[\to \]2, B\[\to \]1, C\[\to \]2, D\[\to \]3 |
| Answer» E. | |
| 1120. |
The microstructure composition of pearlite for and \[F{{e}_{3}}C\] diagram consists of: |
| A. | Carbon dissolved in alpha iron having a body- centered cubic structure |
| B. | Carbon dissolved in gama iron having a face- centered cubic structure |
| C. | A mixture of body-centered alpha iron and face entered gamma iron |
| D. | Carbon dissolved in body-centered alpha iron and an \[{{F}_{e}}F{{e}_{3}}C.\] |
| Answer» E. | |
| 1121. |
Induction hardening is basically a: |
| A. | Carburising process |
| B. | Surface hardening process |
| C. | Core-hardening process |
| D. | None of the above. |
| Answer» C. Core-hardening process | |
| 1122. |
Carriage brass can be: |
| A. | Cold rolled into sheets |
| B. | Drawn into wires |
| C. | Formed into tubes |
| D. | Any of the above. |
| Answer» E. | |
| 1123. |
Which of the following statement is incorrect about duralumin? |
| A. | It is prone to age hardening |
| B. | It can he forged |
| C. | It has good machining properties |
| D. | It is lighter than pure aluminium. |
| Answer» D. It is lighter than pure aluminium. | |
| 1124. |
Invar is used or measuring tapes primarily due to its: |
| A. | Non-magnetic properties |
| B. | High nickel content |
| C. | Low coefficient of thermal expansion |
| D. | Hardenability |
| Answer» D. Hardenability | |
| 1125. |
The percentage of phosphorous in phosphor bronze is: |
| A. | 0.1 |
| B. | 1 |
| C. | 11.1 |
| D. | 98 |
| Answer» B. 1 | |
| 1126. |
Which of the following would you prefer for checking the hardness of thin sections? |
| A. | Hebert cloud burst test |
| B. | Shore's Seleroscope |
| C. | Knoop hardness test |
| D. | Vickers hardness test |
| Answer» D. Vickers hardness test | |
| 1127. |
Polyamides are characterized by: |
| A. | Flexible chain |
| B. | Rigid chain |
| C. | amorphous structure |
| D. | Crystalline structure |
| Answer» E. | |
| 1128. |
Temperature required for full annealing in hyper- eutectoid steel is: |
| A. | \[50{}^\circ C\] above upper critical temperature \[(A{{C}_{3}})\] |
| B. | \[50{}^\circ C\] below upper critical temperature \[(A{{C}_{3}})\] |
| C. | \[50{}^\circ C\] above lower critical temperature \[(A{{C}_{1}})\] |
| D. | \[50{}^\circ C\] below lower critical temperature \[(A{{C}_{1}})\] |
| Answer» B. \[50{}^\circ C\] below upper critical temperature \[(A{{C}_{3}})\] | |
| 1129. |
Match List-I (Ingredients) with List-II (Welding functions) and select the correct answer using the codes given below the lists: List-I (Ingredients) List-II (Welding function) A. Silica 1. Arc stabilizer B. Potassium silicate 2. De-oxidizer C. Ferro silicon 3. Fluxing agent D. Cellulose 4. Gas forming Codes: |
| A. | A\[\to \]3, B\[\to \]4, C\[\to \]2, D\[\to \]1 |
| B. | A\[\to \]2, B\[\to \]1, C\[\to \]3, D\[\to \]4 |
| C. | A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4 |
| D. | A\[\to \]2, B\[\to \]4, C\[\to \]3, D\[\to \]1 |
| Answer» D. A\[\to \]2, B\[\to \]4, C\[\to \]3, D\[\to \]1 | |
| 1130. |
Addition of which of the following improves 3 machining of copper? |
| A. | sulphur |
| B. | vanadium |
| C. | Tin |
| D. | zinc |
| Answer» E. | |
| 1131. |
For the pipe fitting like elbow, tee, union etc. which of the following is preferred? |
| A. | Pig iron |
| B. | Malleable iron |
| C. | Spheroidal graphite cast iron |
| D. | High carbon steel. |
| Answer» C. Spheroidal graphite cast iron | |
| 1132. |
Which of the following display properties similar to that of steel? 1. Black-heart cast iron 2. White-heart cast iron 3. Gray cast iron 4. Pig iron |
| A. | 1 and 2 only |
| B. | 3 and 4 only |
| C. | 2 and 4 only |
| D. | 1 and 3 only |
| Answer» B. 3 and 4 only | |
| 1133. |
Specify the sequence correctly: |
| A. | Grain growth, recrystallization, stress relief |
| B. | Stress relief, grain growth, recrystallization |
| C. | Stress relief, recrystallization grain growth |
| D. | Grain growth, stress relief, recrystallization |
| Answer» D. Grain growth, stress relief, recrystallization | |
| 1134. |
Quenching is not necessary when hardening is done by: |
| A. | Case carburizing |
| B. | Flame hardening |
| C. | nitriding |
| D. | Any of the above processes. |
| Answer» E. | |
| 1135. |
Fillers are added to plastics to: |
| A. | Improve flow |
| B. | Reduce brittleness |
| C. | Facilitate processibility |
| D. | Reduce cost. |
| Answer» E. | |
| 1136. |
In the ABC method of inventory control. Group A constitutes costly items. What is the usual percentage of such items of the total items? |
| A. | 10 to 20% |
| B. | 20 to 30% |
| C. | 30 to 40% |
| D. | 40 to 50% |
| Answer» B. 20 to 30% | |
| 1137. |
If the annual demand of an item becomes half, ordering cost double, holding cost one-fourth and the unit cost twice, then what is the ratio of the new EOQ and the earlier EOQ? |
| A. | \[\frac{1}{2}\] |
| B. | \[\frac{1}{\sqrt{2}}\] |
| C. | \[\sqrt{2}\] |
| D. | 2 |
| Answer» E. | |
| 1138. |
ABC analysis in materials managements is a method of classifying the inventories based on: |
| A. | The value of annual usage of the items |
| B. | Economic order quantity |
| C. | Volume of material consumption |
| D. | Quantity of materials used. |
| Answer» B. Economic order quantity | |
| 1139. |
Economic Order Quantity is the quantity at which the cost of carrying is: |
| A. | Minimum |
| B. | Equal to the cost of ordering |
| C. | less than the cost of ordering |
| D. | Cost of over-stocking. |
| Answer» C. less than the cost of ordering | |
| 1140. |
Match List-I (Phase diagram) with List-II (Characteristic) and select the correct answer using the codes given below the lists: List-I (Phase diagram) List-II (Characteristic) A. Isomorphous system A. One liquid decomposes into another liquid and solid B. Eutectic system B. One liquid and another solid combine to form a new solid C. Peritectic system C. Two metals are corn pletely soluble in liquid state and completely insoluble in solid slate D. Monotectic system D. Two metals, soluble in solid and liquid state Codes: |
| A. | A\[\to \]2, B\[\to \]3, C\[\to \]4, D\[\to \]1 |
| B. | A\[\to \]4, B\[\to \]1, C\[\to \]2, D\[\to \]3 |
| C. | A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 |
| D. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| Answer» E. | |
| 1141. |
Which of the following is a point imperfection 1. Vacancy 2. Interstitially 3. Frenkel imperfection 4. Schottky imperfection |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 2, 3 and 4 only |
| D. | 1, 2, 3 and 4 |
| Answer» E. | |
| 1142. |
A furniture company is maintaining a constant work force which can produce 3000 tables per quarter. The annual demand is 12000 units and is distributed seasonally in accordance with the quarterly indexes \[{{Q}_{1}}=0.80,\] \[{{Q}_{2}}=1.40,\] \[{{Q}_{3}}=1.00\] and \[{{Q}_{4}}=0.80.\] Inventories are accumulated when demand is less than the capacity and are used up during periods of strong demand to supply the total demand. To take into account any seasonal demand the inventories on hand at the beginning of the first quarter should be at least: |
| A. | 0 |
| B. | 600 |
| C. | 1200 |
| D. | 2400 |
| Answer» C. 1200 | |
| 1143. |
A shop owner with an annual constant demand of 'A' units has ordering costs of Rs. 'P' per order and carrying costs Rs. 'l' T per unit per year. The economic order quantity for a purchasing model having no shortage may be determined from: |
| A. | \[\sqrt{\frac{24\,P}{Al}}\] |
| B. | \[\sqrt{\frac{24\,AP}{I}}\] |
| C. | \[\sqrt{\frac{2\,AP}{I}}\] |
| D. | \[\sqrt{\frac{2\,AI}{P}}\] |
| Answer» D. \[\sqrt{\frac{2\,AI}{P}}\] | |
| 1144. |
Match List-I (material) with List-II (application) and select the correct answer using the codes given below the list List-I (Material) List-II (Application) A. Ceramics chemical 1. Construction of plants B. Refractories 2. Columns and pillars C. Stones 3. Lining of furnaces D. High silica glass 4. Tiles Codes: |
| A. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| B. | A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 |
| C. | A\[\to \]4, B\[\to \]1, C\[\to \]2, D\[\to \]3 |
| D. | A\[\to \]2, B\[\to \]3, C\[\to \]4, D\[\to \]1 |
| Answer» B. A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 | |
| 1145. |
Which of the following fibre materials are used for reinforcement in composite materials: 1. Glass 2. Boron carbide 3. Graphite Select the correct answer using the codes given below: Codes: |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 3 |
| D. | 1, 2 and 3 |
| Answer» B. 1 and 3 | |
| 1146. |
Consider the following statements] Poly-tetra-fluorothene is 1. A thermoplastic material 2. Having high friction coefficient 3. A thermosetting material 4. Having low friction coefficient 5. An electric insulator 6. Non sticking to surfaces. Which of the above statements are correct? |
| A. | 1, 2 and 5 |
| B. | 2, 3 and 6 |
| C. | 3, 4 and 5 |
| D. | 3, 2 and 5 |
| Answer» B. 2, 3 and 6 | |
| 1147. |
Which of the following are fabricated using| engineering plastics? (1) Surface plate (2) Gears (3) Guide way for machine tools (4) Foundry patterns. Select the correct answer using the codes given below: Codes: |
| A. | 1, 2 and 3 |
| B. | 1 |
| C. | 2, 3 and 4 |
| D. | 1, 2/3 and 4 |
| Answer» D. 1, 2/3 and 4 | |
| 1148. |
Which of the following factors govern solubility of two non-ferrous metals both inliquid state as well as in solid state? 1. Crystal structure 2. Relative size factor 3. Chemical-affinity factor 4. Relative valence factor Select the correct answer using the codes giver below: |
| A. | 1, 2 and 3 |
| B. | 2, 3 and 4 |
| C. | 1 and 4 |
| D. | 3 and 4 |
| Answer» E. | |
| 1149. |
Match List-I (Name of the element) with List-II (Crystal structure) and select the correct answer using the codes given below the lists: List-I List-II A. Fluorspar 1. Body-centered cubic B. Alpha-iron 2. Hexagonal close packed C. Silver 3. Simple cubic D. Zinc 4. Face-centered cubic Codes: |
| A. | A\[\to \]3, B\[\to \]2, C\[\to \]4, D\[\to \]1 |
| B. | A\[\to \]4, B\[\to \]1, C\[\to \]3, D\[\to \]2 |
| C. | A\[\to \]4, B\[\to \]2, C\[\to \]3, D\[\to \]1 |
| D. | A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2 |
| Answer» E. | |
| 1150. |
Carbide-tipped cutting, tools are manufactured by powder-metal technology processes and have a composition of: |
| A. | Zirconium-Tungsten (35%-65%) |
| B. | Tungsten carbide-cobalt (90%-10%) |
| C. | Aluminium oxide-silica (70%-30%) |
| D. | Nickel-chromium tungsten (30%-15%55%) |
| Answer» C. Aluminium oxide-silica (70%-30%) | |