MCQOPTIONS
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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.
| 2451. |
A slot is to be milled centrally on a block with a dimension of \[40\pm 0.05\,\,mm.\] A milling cutter is 20 mm width is located with reference to the side of the block within \[\pm \,\,0.02\,\,mm.\] The maximum offset in mm between the centre line of the slot and the block is: |
| A. | \[\pm 0.070\] |
| B. | \[0.070\] |
| C. | \[\pm 0.020\] |
| D. | \[0.045\] |
| Answer» D. \[0.045\] | |
| 2452. |
Match List-I (instruments) with List-II (measurement) and select the correct answer by using the codes given below the lists: List-I (Instrument) List-II (Measurement) A. Pilot-tube 1. R.P.M. of a shaft B. McLeod gauge 2. Displacement C. Planimeter 3. Flow velocity D. LVDT 4. Vacuum 5. Surface finish 6. Area Codes: |
| A. | A\[\to \]4, B\[\to \]3, C\[\to \]6, D\[\to \]2 |
| B. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]6 |
| C. | A\[\to \]3, B\[\to \]4, C\[\to \]2, D\[\to \]6 |
| D. | A\[\to \]3, B\[\to \]4, C\[\to \]6, D\[\to \]2 |
| Answer» E. | |
| 2453. |
A fit is specified as \[215\,\,H\,\,8/e8.\]The tolerance value for a nominal diameter of 25 mm in IT8 is 33 microns and fundamental deviation for the shaft is \[-\,40\] microns. The maximum clearance of the fit in micron is: |
| A. | \[-\,7\] |
| B. | 7 |
| C. | 73 |
| D. | 106 |
| Answer» E. | |
| 2454. |
Consider the following statements with respect to control charts for attributes: 1. The lower control limit is non-negative 2. Normal distribution is the order for this data 3. The lower control limit is not significant 4. These charts give the average quality characteristics Which of the statements given above are correct. |
| A. | 1, 2 and 3 |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1, 2 and 4 |
| Answer» D. 1, 2 and 4 | |
| 2455. |
Quality control chart for averages was maintained for a dimension of the product. After the control was established, it was found that the standard deviation of the process was 1.00 mm. The dimension of the part is 70 \[\pm \] 2.5 mm. Parts above 725 mm can be reworked but parts below 67.5 mm have to be scrapped. What should be the setting of the process to ensure production of no scrap and to minimize the rework? |
| A. | 68.5 mm |
| B. | 70 mm |
| C. | 70.5 mm |
| D. | 725 mm |
| Answer» C. 70.5 mm | |
| 2456. |
Match List I (Quality control concepts) with List II (Quality control techniques) and select the correct answer using the codes given below the lists: List-I (Quality control concepts) List-II (Quality control techniques) A. Tightened and reduced inspection 1. Dodge roming tables B. Lot tolerance percent defective 2. Control chart for variables C. Poisson distribution 3. MIL standards D. Normal distribution 4. Control chart for number of non-conformities Codes: |
| A. | A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 |
| B. | A\[\to \]3, B\[\to \]4, C\[\to \]1, D\[\to \]2 |
| C. | A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2 |
| D. | A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]3 |
| Answer» D. A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]3 | |
| 2457. |
Match List-I (Trend/Defect) with List-II (Chart) and select the correct answer using the codes given below flue fists: List-I (Trend/Defect) List-II (Chart) A. Trend 1. R-Chart B. Dispersion 2. C-Chart C. Number of defects 3. \[\bar{X}\] - Chart D. Number of defectives 4. \[np-\]Chart 5. u-Chart Codes: |
| A. | A\[\to \]5, B\[\to \]3, C\[\to \]2, D\[\to \]4 |
| B. | A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2 |
| C. | A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4 |
| D. | A\[\to \]3, B\[\to \]4, C\[\to \]5, D\[\to \]2 |
| Answer» D. A\[\to \]3, B\[\to \]4, C\[\to \]5, D\[\to \]2 | |
| 2458. |
The span of control refers to the: |
| A. | Total amount of control which can he exercised by the supervisor |
| B. | Total number of persons which report to any one supervisor |
| C. | Delegation of authority by the supervisor to this subordinates |
| D. | Delegation of responsibility by the supervisor to his subordinates. |
| Answer» E. | |
| 2459. |
Which one of the following is not the characteristics of acceptance sampling? |
| A. | This is widely suitable in mass production |
| B. | It causes less fatigue to inspectors |
| C. | this is much economical |
| D. | It gives definite assurance for the conformation of the specifications for all the pieces. |
| Answer» E. | |
| 2460. |
What is the dominant direction of the tool marks or scratches in a surface texture having a directional quality, called? |
| A. | Primary-texture |
| B. | Secondary texture |
| C. | Lay |
| D. | Flaw |
| Answer» D. Flaw | |
| 2461. |
Consider the following advantages: 1. Rapid process 2. Work with keyways can be ground 3. No work holding device is required. Which of these are the advantages of centreless grinding? |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» C. 2 and 3 | |
| 2462. |
The M and E-system in metrology are related to measurement of: |
| A. | Screw threads |
| B. | Flatness |
| C. | Angularity |
| D. | Surface finish |
| Answer» B. Flatness | |
| 2463. |
The forging defect due to hindrance to smooth flow of metal in the component called 'Lap' occurs because: |
| A. | The comer radius provided is too long |
| B. | The comer radius provided is too small |
| C. | Draft is not provided |
| D. | The shrinkage allowance is inadequate. |
| Answer» C. Draft is not provided | |
| 2464. |
Match List-I (Products) with List-II (Processes) and select the correct answer using the codes given below the lists: List-I List-II A. MS angles and channels 1. Welding B. Carburettors 2. Forging C. Roof trusses 3. Casting D. Gearwheels 4. Rolling Codes: |
| A. | A\[\to \]1, B\[\to \]2, C\[\to \]3, D\[\to \]4 |
| B. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| C. | A\[\to \]1, B\[\to \]2, C\[\to \]4, D\[\to \]3 |
| D. | A\[\to \]4, B\[\to \]3, C\[\to \]1, D\[\to \]2 |
| Answer» E. | |
| 2465. |
Match List-I (parts) with List-II (Manufacturing processes) and select the correct answer using the codes given below the lists: List-I (Parts) List-II (Manufacturing processes) A. Seamless tubes 1. Roll forming B. Accurate and smooth tubes 2. Shot peening C. Surfaces having hardness and fatigue strength 3. Forging higher 4. Cold forming Codes: |
| A. | A\[\to \]1, B\[\to \]4, C\[\to \]2, |
| B. | A\[\to \]2, B\[\to \]3, C\[\to \]1 |
| C. | A\[\to \]1, B\[\to \]3, C\[\to \]2 |
| D. | A\[\to \]2, B\[\to \]4, C\[\to \]1 |
| Answer» B. A\[\to \]2, B\[\to \]3, C\[\to \]1 | |
| 2466. |
In rolling a strip between two rolls, the position of the neutral point in the arc of contact' does not depend on: |
| A. | Amount of reduction |
| B. | Diameter of the rolls |
| C. | Coefficient of friction |
| D. | Material of the rolls. |
| Answer» E. | |
| 2467. |
The rate of production of a powder metallurgy par) depends on: |
| A. | Flow rate of powder |
| B. | Green strength of compact |
| C. | Apparent density of compact |
| D. | Compressibility of powder. |
| Answer» E. | |
| 2468. |
Consider the following steps involved in hamrner forging a connecting rod from bar Stock 1. Blocking 2. Trimming 3. Finishing 4. Fullering 5. Edging Which of the following is the correct sequence of operations? |
| A. | 1, 4, 3, 2 and 5 |
| B. | 4, 5, 1, 3 and 2 |
| C. | 5, 4, 3, 2 and 1 |
| D. | 5, 1, 4, 2 and 3 |
| Answer» C. 5, 4, 3, 2 and 1 | |
| 2469. |
Match List-I (components of a table fan) with List-II (Manufacturing processes) and select the correct answer using the codes given below the lists: List-I List-II A. Base with stand 1. Stamping and pressing B. Blade 2. Wire drawing C. Armature coil wire 3. Turning D. Armature shaft 4. Casting 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\[\to \]2, B\[\to \]3, C\[\to \]4, D\[\to \]1 |
| D. | A\[\to \]4, B\[\to \]1, C\[\to \]2, D\[\to \]3 |
| Answer» E. | |
| 2470. |
Best position of crank for blanking operation in a mechanical press is: |
| A. | Top dead centre |
| B. | 20 degrees below top dead centre |
| C. | 20 degrees before bottom dead centre |
| D. | Bottom dead centre. |
| Answer» D. Bottom dead centre. | |
| 2471. |
Which one of the following lubricants is most suitable for drawing mild steel wires: |
| A. | Sodium stearate |
| B. | Water |
| C. | lime-water |
| D. | Kerosene |
| Answer» B. Water | |
| 2472. |
Which one of the following metal forming processes is not a high energy rate forming process? |
| A. | Electro-magnetic forming |
| B. | Roll-forming |
| C. | Explosive forming |
| D. | electro-hydraulic forming. |
| Answer» C. Explosive forming | |
| 2473. |
Match List-1 with List-11 and select the correct answer using the codes given below the Lists: List-I List-II A. Drawing 1. Soap solution B. Rolling 2. Camber C. Wire drawing 3. Pilots D. Sheet metal operations using progressive dies 4. Crate 5. Ironing Codes: |
| A. | A\[\to \]2, B\[\to \]5, C\[\to \]1, D\[\to \]4 |
| B. | A\[\to \]4, B\[\to \]1, C\[\to \]5, D\[\to \]3 |
| C. | A\[\to \]5, B\[\to \]2, C\[\to \]3, D\[\to \]4 |
| D. | A\[\to \]5, B\[\to \]2, C\[\to \]1, D\[\to \]3 |
| Answer» E. | |
| 2474. |
Match List-I with List-II and select the correct answer using the codes given below the List: List-I List-II A. Die sinking 1. Abrasive jet machining B. Deburring 2. Laser beam machining C. Fine hole drilling (thin materials) 3. EDM D. Cutting/sharpening hard materials 4. Ultrasonic machining 5. Electro chemical grinding Codes: |
| A. | A\[\to \]3, B\[\to \]5, C\[\to \]4, D\[\to \]1 |
| B. | A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]5 |
| C. | A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]3 |
| D. | A\[\to \]4, B\[\to \]5, C\[\to \]1, D\[\to \]5 |
| Answer» B. A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]5 | |
| 2475. |
The bending force required for V-bending, U-bending and Edge-bending will be in the ratio of: |
| A. | 0.0430613425925926 |
| B. | 0.0840335648148148 |
| C. | 0.0430671296296296 |
| D. | 0.0423726851851852 |
| Answer» B. 0.0840335648148148 | |
| 2476. |
Which one of the following processes in most commonly used for the forging of bolt heads of hexagonal shape? |
| A. | Closed die drop forging |
| B. | Open die upset forging |
| C. | Close die press forging |
| D. | Open die progressive forging. |
| Answer» E. | |
| 2477. |
Which of the following components can be manufactured by power metallurgy methods? 1. Carbide tool tips 2. Bearings 3. Filters 4. Brake linings. Select the correct answer using the codes given below: |
| A. | 1, 3 and 4 |
| B. | 2 and 3 |
| C. | 1, 2 and 4 |
| D. | 1, 2, 3 and 4 |
| Answer» E. | |
| 2478. |
A cup 10 cm height and 5 cm diameter is to be made from a sheet metal of 2 mm thickness. The number of deductions necessary will be: |
| A. | One |
| B. | two |
| C. | Three |
| D. | four |
| Answer» D. four | |
| 2479. |
For 50% penetration of work material, a punch with single shear equal to thickness will: |
| A. | Reduce the punch load to half the value |
| B. | Increase the punch load by half the value |
| C. | Maintain the same punch load |
| D. | Reduce the punch load, to quarter load. |
| Answer» D. Reduce the punch load, to quarter load. | |
| 2480. |
Which one of the following is an advantage of forging? |
| A. | Good surface finish |
| B. | Low tooling cost |
| C. | Close tolerance |
| D. | Improved physical property |
| Answer» E. | |
| 2481. |
Which of the following pairs of process and draft are correctly matched? 1. Rolling............ 2 2. Extrusion............ 50 3. Forging ...........4 Select the correct answer using the codes given below: |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 1 and 3 |
| D. | 2 and 3 |
| Answer» B. 1 and 2 | |
| 2482. |
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 | |
| 2483. |
In sheet metal blanking, shear is provided on punches and dies so that: |
| A. | Press load is reduce |
| B. | Good cut edges obtained |
| C. | Warping of sheet is minimized |
| D. | Cut blank are straight |
| Answer» B. Good cut edges obtained | |
| 2484. |
Thread rolling is restricted to: |
| A. | Ferrous materials |
| B. | Ductile materials |
| C. | Hard materials |
| D. | none of the above. |
| Answer» C. Hard materials | |
| 2485. |
The force required for piercing a round hole when the die and punch are not provided with any shear is given by: Where L = length of die land, D = diameter of hole, T = thickness, S = shear strength |
| A. | LST |
| B. | \[\pi \] DS |
| C. | DLST |
| D. | \[\pi \] DST |
| Answer» E. | |
| 2486. |
The order of radial clearance between the punch and die for shearing plate of thickness 't' \[(1\,\,mm\le 2\,\,mm)\]is: |
| A. | 0.05 t |
| B. | 0.15 t |
| C. | 0.20 t |
| D. | 0.25 t |
| Answer» B. 0.15 t | |
| 2487. |
For punching operation the clearance is provided on which one of the following? |
| A. | The punch |
| B. | The die |
| C. | 50% on the punch 50% on the die |
| D. | \[\frac{1}{3}\,rd\] on the punch \[\frac{2}{3}\,rd\] on the die |
| Answer» C. 50% on the punch 50% on the die | |
| 2488. |
Which of the following are the characteristics of cold working of metals? 1. Stresses are set up in the metal that remain unless removed by subsequent heat treatment 2. Coarse grains are refined 3. Strength and hardness are increased. Select the correct answer using the code given below: |
| A. | 1 and 2 only |
| B. | 1 and 3 only |
| C. | 2 and 3 only |
| D. | 3 only |
| Answer» B. 1 and 3 only | |
| 2489. |
In drawing operation, proper lubrication is essential for which of the following reasons. 1. To improve die life 2. To reduce drawing forces 3. To reduce temperature 4. To improve surface finish Select the correct answer using the code given below: |
| A. | 1 and 2 only |
| B. | 1, 3 and 4 only |
| C. | 3 and 4 only |
| D. | 1, 2, 3 and 4 |
| Answer» E. | |
| 2490. |
Consider the following steps in forging a connecting rod from bar stock: 1. Blocking 2. Trimming 3. Finishing 4. Edging Select the correct sequence of these operations using the codes given below: Codes: |
| A. | \[1-2-3-4\] |
| B. | \[2-3-4-1\] |
| C. | \[3-4-1-2\] |
| D. | \[4-1-3-2\] |
| Answer» E. | |
| 2491. |
Which one of the following methods is used for the manufacture of collapsible tooth paste tubes? |
| A. | Impact extrusion |
| B. | direct extrusion |
| C. | Deep drawing |
| D. | piercing. |
| Answer» E. | |
| 2492. |
What are the advantages of powder metallurgy'? 1. Extreme purity product 2. Low labour cost. 3. Low equipment forming Select the correct answer using the code given below: |
| A. | 1, 2 and 3 |
| B. | 1 and 2 only |
| C. | 2 and 3 only |
| D. | 1 and 3 only |
| Answer» C. 2 and 3 only | |
| 2493. |
Consider the following statements related to forging: 1. Flash is excess material added to stock-which flows around, parting line. 2. Flash helps in filling of thin ribs and bosses in upper die. 3. Amount of flash depends upon forging force. Which of the above statements is/are correct? |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 1 and 3 |
| D. | 2 and 3 |
| Answer» D. 2 and 3 | |
| 2494. |
In drawing operation if \[{{D}_{i}}=\] initial diameter and \[{{D}_{0}}=\] outgoing diameter, then what is the degree of drawing equal to? |
| A. | \[\frac{{{D}_{i}}-{{D}_{0}}}{{{D}_{i}}}\] |
| B. | \[\frac{D_{i}^{2}-D_{0}^{2}}{D_{i}^{2}}\] |
| C. | \[\frac{D_{i}^{2}-D_{0}^{2}}{D_{i}^{2}}\] |
| D. | \[\sqrt{\frac{D_{i}^{2}-D_{0}^{2}}{D_{i}^{2}}}\] |
| Answer» D. \[\sqrt{\frac{D_{i}^{2}-D_{0}^{2}}{D_{i}^{2}}}\] | |
| 2495. |
Which one of the following statements in extrusion processes in not correct? |
| A. | In forward extrusion, the problem of friction is prevalent because of relative motion between heated metal billet and cylinder wall |
| B. | In backward extrusion, the problem of friction is completely eliminated |
| C. | Forward cold extrusion is similar to forward hot extrusion forces except extrusion ratios are higher and extrusion pressures are less |
| D. | Cold extrusion forging is similar to impact extrusion except that side walk are much thicker and their height is smaller. |
| Answer» B. In backward extrusion, the problem of friction is completely eliminated | |
| 2496. |
At which temperature is cold working of metals carried out? |
| A. | At the recrystallization temperature |
| B. | Below the recrystallization temperature |
| C. | Above the recrystallization temperature |
| D. | At any temperature |
| Answer» C. Above the recrystallization temperature | |
| 2497. |
Which of the following parts can he made economically be powder metallurgy? 1. Gears 2. Automobile cylinders 3. Filters 4. Gun barrels Select the correct answer using the code given below: |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 3 |
| D. | 2 and 4 |
| Answer» C. 2 and 3 | |
| 2498. |
In blanking operation the clearance is provided: |
| A. | On the punch |
| B. | On the die |
| C. | Both on the punch and the die |
| D. | Neither/on the punch nor on the die. |
| Answer» B. On the die | |
| 2499. |
In part produced by powder metallurgy process, presintering is done to: |
| A. | Increase the toughness of the component |
| B. | Increase the density of the component |
| C. | Facilitate bonding of non-metallic particles |
| D. | Facilitate machining of the part. |
| Answer» D. Facilitate machining of the part. | |
| 2500. |
Which of the following are produced by powder metallurgy process 1. Cemented carbide dies 2. Porous bearings 3. Small magnets 4. Parts with intricate shapes Select the correct answer using the codes given below: Codes: |
| A. | 1, 2 and 3 |
| B. | 1, 2 and 4 |
| C. | 2, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» B. 1, 2 and 4 | |