Explore topic-wise MCQs in Railways.

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.

501.

       The input of the mixer stage is                     

A.  RF signals only                              
B.  local oscillator signals only                      
C.  signals only                                     
D.  both [a] and [b]  
Answer» E.
502.

Channel capacity is equal to                         

A.  parabolic antenna         
B.  lens antenna        
C.  both [a] and [b]
D.  none of these    
Answer» B.  lens antenna        
503.

Three-point tracking is achieved by                 

A.  the padder capacitor      
B.  variable selectivity  
C.  both [a] and [b]
D.  none of these  
Answer» B.  variable selectivity  
504.

In ground wave propagation the absorption of waves

A.  decreases with frequency
B.  increases with frequency
C.  both [a] and [b]
D.  none of these
Answer» C.  both [a] and [b]
505.

   During heterodyne process in a receiver the modulation of the signal the signal                                          

A.  increases                      
B.  decreases          
C.  remains constant           
D.  both [a] and [b]
Answer» D.  both [a] and [b]
506.

          Which stage contains the primary of the first IF transformer

A.  Oscillator                     
B.  Detector             
C.  Both [a] and [b]
D.  None of these     
Answer» E.
507.

  When power ratios are expressed in dB m, the reference power is                                            

A.  1 mW              
B.  3 mW               
C.  2 mW              
D.  5 mW     
Answer» B.  3 mW               
508.

Diversity reception system is used to minimize the troubles due to                                          

A.  synchronous fading                           
B.  general fading only                            
C.  both [a] and [b]                    
D.  none of the above  
Answer» D.  none of the above  
509.

In a radio receiver padders are provided

A.  to improve tracking       
B.  to improve sensibility
C.  both [a] and [b]
D.  none of these
Answer» B.  to improve sensibility
510.

A beat frequency between 1500 kHz and 1955 kHz is

A.  455 kHz           
B.  350 kHz
C.  665 kHz                       
D.  750 kHz
Answer» B.  350 kHz
511.

The effect of transit-time noise is significant in

A.  HP                              
B.  LF
C.  both [a] and [b]
D.  none of these
Answer» B.  LF
512.

Virtual height of an ionosphere layer is........... the beat height

A.  less than                      
B.  equal to
C.  more than        
D.  none of these
Answer» D.  none of these
513.

The frequency at which the reactance of the two arms in a crystal gate are equal is

A.  zero
B.  maximum attenuation frequency
C.  both [a] and [b]
D.  none of the above
Answer» C.  both [a] and [b]
514.

A operations consultant for an automatic car wash wishes to plan for enough capacity to handle 60 cars hour. Each car will have wash time of 2 minutes, but there is to be a 20 per cent allowance for setup, delays and payment transactions. The installation capacity of car wash stalls should be:

A. 3                                 
B. 4
C. 5                                 
D. 6
Answer» B. 4
515.

A linkage is shown below in the figure in which links ABC and DBF are ternary links whereas AF, BE and CD are binary links. The degrees of freedom of the linkage when link ABC is fixed are:

A. 0                                 
B. 1
C. 2                                 
D. 3
Answer» B. 1
516.

The type of layout suitable for use of the concept, principles and approaches of 'group technology' is:

A. Product layout   
B. Job-shop layout
C. Fixed position layout      
D. Cellular layout
Answer» B. Job-shop layout
517.

Which of the following input data are needed for MRP? 1. Master production schedule 2. Inventory position 3. Machine capacity 4. Bill of materials Select the correct answer using the codes given below:

A. 1, 2 and 3                     
B. 2, 3 and 4
C. 1, 2 and 4                     
D. 1, 3 and 4
Answer» D. 1, 3 and 4
518.

Consider the following statements: Dispatching 1. Is the action of operations, planning and control 2. Releases work to the operating divisions 3. Convey instructions to the shop floor. Of these statements:

A. 1, 2 and 3 are correct
B. 1 and 2 are correct
C. 2 and 3 are correct
D. 1 and 3 are correct
Answer» D. 1 and 3 are correct
519.

Match List-I (Methods) with List-II (Problems) and select the correct answer using the codes given below the lists. List-I List-II A. Moving Average        1. Assembly B. Line Balancing         2. Purchase C. Economic Batch Size   3. Forecasting D. Johnson alogorithm     4. Sequencing Codes:

A. A\[\to \]1, B\[\to \]3, C\[\to \]2, D\[\to \]4
B. A\[\to \]1, B\[\to \]3, C\[\to \]4, D\[\to \]2
C. A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2
D. A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4
Answer» E.
520.

Which one of the following is a qualitative technique of demand forecasting?

A. Correlation and regression analysis
B. Moving average method
C. Delphi technique
D. Exponential smoothing.
Answer» D. Exponential smoothing.
521.

Details of cost for make or buy decision are shown in the given graph figure. A discount is offered for a volume of purchase above 'V. Which one of the following ranges would lead to the economic decision?

A. Buy A, B Make 1 and 2 3 and 4
B. Buy A, B Make 1 and 3 2 and 4
C. Buy A, B Make 2 and 4 1 and 3
D. Buy A, B Make 1 and 4 2 and 3
Answer» B. Buy A, B Make 1 and 3 2 and 4
522.

Given T = underlying trend, C = cyclic variations within the trend S = seasonal variation within the trend and R = residual, remaining or random variation, as per the time series analysis of sales forecasting, the demand will be a function of

A. T and C            
B. R and S
C. T, C and S                    
D. T, C, S and R
Answer» E.
523.

Match List-I with List-II and select the correct answer using the codes given below the Lists. List-I (Topic) List-II (Method of solving) A. Forecasting 1. North-West comer Method B. Linear Programming     2. Rowan Plan C. Wage Incentive      3. Method of penalty D. Work Measurement   4. Time series Analysis 5. Work Factor System Codes:

A. A\[\to \]4, B\[\to \]3, C\[\to \]1, D\[\to \]5
B. A\[\to \]4, B\[\to \]1, C\[\to \]5, D\[\to \]3
C. A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]5
D. A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4
Answer» D. A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4
524.

Match List-I (type of Products) with. List-II (type of layout) and select the correct answer. List-I List-II A. Ball Bearings        1. Process Layout. B. Tools and Gauges    2. Product Layout C Large Boilers    3. Combination of Product and Process layout D. Motor cycle assembly           4. Fixed Position Layout. Codes:

A. A\[\to \]1, B\[\to \]3, C\[\to \]4, D\[\to \]2
B. A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2
C. A\[\to \]1, B\[\to \]2, C\[\to \]4, D\[\to \]3
D. A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4
Answer» D. A\[\to \]3, B\[\to \]1, C\[\to \]2, D\[\to \]4
525.

Which of the following factors are to be considered for production scheduling? 1. Sales forecast             2. Component design 3. Route sheet                4. Time standards Select the correct answer using the codes given below: Codes:

A. 1, 2 and 3                     
B. 1, 2 and 4
C. 1, 3 and 4                     
D. 2, 3 and 4
Answer» E.
526.

 In manufacturing management, the term "Despatching" is used to describe:

A. Despatch of sales order
B. Despatch of factory mail
C. Despatch of finished product to the user
D. Despatch of work orders through shop floor.
Answer» E.
527.

Which of the following charts are used for plant layout design? 1. Operation process chart          2. Man machine chart 3. Correlation chart 4. Travel chart Select the correct answer using the codes given below:

A. 1, 2, 3 and 4                 
B. 1, 2 and 4           
C. 1, 3 and 4                     
D. 2 and 3
Answer» C. 1, 3 and 4                     
528.

Which one of the following methods can be used for forecasting the sales potential of a new product?

A. Time Series Analysis
B. Jury of Executive Opinion Method
C. Sales Force Composite Method
D. Direct Survey Method
Answer» E.
529.

For a small scale industry, the fixed cost per month is Rs. 5000. The variable cost per product is Rs. 20 and sales price is Rs. 30 per piece. The break-even r production per month will be:

A. 300                              
B. 460
C. 500                              
D. 10000
Answer» D. 10000
530.

Production cost refers to prime cost phis:

A. Factory overheads
B. Factory and administration overheads           
C. Factory, administration and sales overheads
D. Factory, administration and sales overheads and profit.
Answer» B. Factory and administration overheads           
531.

Which one of the following is the correct definition of critical ratio in scheduling?

A. Demand time/supply lead time
B. Supply lead time/demand time
C. Demand time/manufacturing lead time
D. Manufacturing lead time/demand time
Answer» D. Manufacturing lead time/demand time
532.

Match List-I with List-II and select the correct answer using the codes given below the lists: List-I (Equipment) List-II (Application) A. Hoist 1. For moving over a fixed route B. Conveyor 2. For transporting material over a varying path C. Fork truck          3. For vertically raising or lowering material in a fixed location D. Elevators 4. For overhead lifting of loads in fixed area 5. For moving persons up or down Codes:

A. A\[\to \]4, B\[\to \]2, C\[\to \]3, D\[\to \]5
B. A\[\to \]2, B\[\to \]3, C\[\to \]4, D\[\to \]5
C. A\[\to \]4, B\[\to \]1, C\[\to \]2, D\[\to \]3
D. A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3
Answer» D. A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3
533.

Air cargo movements fall under:

A. Fixed path system
B. Continuous system
C. Intermittent system
D. Variable path system
Answer» B. Continuous system
534.

Consider the following features/characteristics: 1. Need for greater variety of skills in labour 2. Intermittent flow of materials and parts 3. Preference for flexible layout The characteristics of job order layout would include:

A. 1, 2 and 3                     
B. 1 and 2
C. 2 and 3            
D. 1 and 3
Answer» B. 1 and 2
535.

Production scheduling is simpler, and high volume of output and high labour efficiency are achieved in the case of:

A. Fixed position layout
B. Process layout
C. Product layout
D. A combination of line process layout
Answer» D. A combination of line process layout
536.

  In thermal power plants, coal is transferred from bucker to the other places by:

A. Hoists               
B. conveyors
C. Cranes              
D. lifts
Answer» C. Cranes              
537.

Match List-1 with List-II and select the correct answer using the code given below the lists: List-I (Contribution) List-II (Contributor) A. Specialization of Labour in Manufacturing     1. Henry Gantt B. Scheduling techniques 2. George Dantzig C. Linear Programming 3. Adam Smith D. Quality and Productivity Applications from Japan 4. W.E. Deming 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\[\to \]4, B\[\to \]3, C\[\to \]1, D\[\to \]2
D. A\[\to \]2, B\[\to \]4, C\[\to \]3, D\[\to \]4
Answer» D. A\[\to \]2, B\[\to \]4, C\[\to \]3, D\[\to \]4
538.

Which of the following are the characteristics of job order production? (1) High degree of production control is required (2) Division of labour is effective (3) Detailed schedule is needed for each component (4) A flexible layout is preferred Select the correct answer using the codes given below: Codes:

A. 1, 3 and 4                     
B. 2 and 4
C. 1 and 3            
D. 3 and 4
Answer» D. 3 and 4
539.

The constant factor in case of R 10 series of preferred number / is:

A. 1.6                               
B. 1.25
C. 1.12                             
D. 1.03
Answer» C. 1.12                             
540.

 Which of the following is/are advantage(s) of cellular manufacture? 1. Lower work-in-progress inventories 2. Fewer tooling changes Select the correct answer using the code given below:

A. 1 only              
B. 2 only
C. Both 1 and 2                 
D. neither 1 nor 2
Answer» D. neither 1 nor 2
541.

Consider the following statements: 1. In product-flow layout, the arrangement of facilities within the plant is relatively inflexible. 2. Process layout is typical in job shops and batch production. Which of the statements given above is/are correct?

A. 1 only              
B. 2 only
C. Both 1 and 2                 
D. neither 1 nor 2
Answer» D. neither 1 nor 2
542.

Motions of limbs are through 1. Elbow                        2. Finger 3. Hip                           4. Shoulder 5. Wrist. What is the correct sequence in descending order of motion in terms of time and fatigue involved?

A. \[3\,-\,4\,-\,1\,-\,5\,-\,2\]  
B. \[2\,-\,5\,-\,1\,-\,4\,-\,3\]
C. \[5\,-\,2\,-\,3\,-\,1\,-\,4\]  
D. \[4\,-\,3\,-\,2\,-\,1\,-\,5\]
Answer» C. \[5\,-\,2\,-\,3\,-\,1\,-\,4\]  
543.

A certain part is produced in a batch size of 50 units and requires a sequence of 8 operations in the plant. The average set-up time and average non-operation time per operation are3 hours and 7 hours, respectively. The average operative time per machine per part is 6 minutes. What is the manufacturing lead time?

A. 100 hours                     
B. 120 hours
C. 150 hours                     
D. 180 hours
Answer» C. 150 hours                     
544.

The factory overhead rate is 125% and direct labour cost for a job is Rs. 900. What is the factor overhead charge?

A. Rs. 360             
B. Rs. 720
C. Rs.1125            
D. Rs. 2250
Answer» D. Rs. 2250
545.

Break-even analysis can be used for which of the following? 1. Profit analysis 2. Production method cost comparison. Select the correct answer using the code given below:

A. 1 only              
B. 2 only
C. Both 1 and 2                 
D. neither 1 nor 2
Answer» D. neither 1 nor 2
546.

Which one of the following is not a necessary information input to Material Requirements Planning?

A. Inventory on hand
B. Bill of materials
C. Sequence of operations on a job
D. Master production schedule (MPS).
Answer» D. Master production schedule (MPS).
547.

Consider the following statements: 1. The manufacturing equipment used in batch production is general-purpose but designed for higher rates of production 2. The machine tools used in batch manufacture are not combined with specially designed jigs and fixtures. Which of the statements given above is/are correct?

A. 1 only              
B. 2 only
C. Both 1 and 2                 
D. neither 1 nor 2
Answer» B. 2 only
548.

Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Purpose of Transportation) List-II (Device) A. Coal from the pit to surface 1. Bucket elevator B. Lump and powder material in bulk  transportation to 2. Belt conveyor C. Stacking components in store 3. Fork lift truck D. Heavy material transportation in machine shop 4. Crane Codes:

A. A\[\to \]3, B\[\to \]4, C\[\to \]1, D\[\to \]2
B. A\[\to \]1, B\[\to \]2, C\[\to \]3, D\[\to \]4
C. A\[\to \]3, B\[\to \]2, C\[\to \]1, D\[\to \]4
D. A\[\to \]1, B\[\to \]4, C\[\to \]3, D\[\to \]2
Answer» C. A\[\to \]3, B\[\to \]2, C\[\to \]1, D\[\to \]4
549.

Consider the following statements: Method study is carried out to achieve 1. the most effective use of plant and equipment 2. the most effective use of human efforts 3. Evaluation of human work. Which of the statements given above are correct?

A. 1 and 3 only                 
B. 2 and 3 only
C. 1 and 2 only                 
D. 1, 2 and 3
Answer» C. 1 and 2 only                 
550.

In case of mutually exclusive projects, which one is the most suitable criterion for evaluation of projects?

A. Net Present Value
B. Payback Period
C. Internal Rate of Return
D. Rate of Return
Answer» E.