If worker takes 15 min as a standard time for as job in which total allowance is 20% of normal time. If the rating of the worker is 100 %. Find the actual time required by the worker

1 Answer

Answer :

Standard Time (ST) = 15 Minutes

Rating Factor (RF) = 100 %

Allowance = 20 % of Normal Time (NT)

Standard Time (ST) = Normal Time (NT) + Allowance

15 = NT + (20/100) NT

15 = NT + (1 + 0.2)

NT = 15/1.2

NT = 12.5 Minutes = Basic Time (BT)

We Know That,

Basic Time = (Observed (Actual) Time x Rating Factor)/ 100

12.5 = (Observed (Actual) Time x 100)/ 100

12.5 = Observed (Actual) Time

Actual (Observed) Time (AT) required by the worker to complete the job is 12.5 Minutes.


Related questions

Description : What allowances are considered while calculating standard time? 

Last Answer : following types of allowances are considered while calculating standard time. 1) Relaxation allowance a) Personal need allowance b) Fatigue allowance i) Basic fatigue allowance ii) Variable ... 2) Contingency allowance 3) Special allowance 4) Process allowance 5) Interference allowance

Description : Explain in brief the allowances to be considered while estimating the standard time.

Last Answer : Allowances to be considered while estimating the Standard Time: Allowances are added to the normal time in order to arrive at standard time. It is impossible to work throughout the day even ... under exceptional circumstances. It is used with utmost care and only in clearly defined circumstances.

Description : Differentiate between product layout and process layout on the basis of 1) Initial investment cost. 2) Cycle Time. 3) Types of machines used. 4) Skill of labour required. 5) Inventory level. 6) Arrangement of machine. 

Last Answer : Parameter Product layout Process layout 1) Initial investment cost. It requires higher initial investment. Less initial investment 2) Cycle Time. Less cycle time for ... similar operation are grouped together to make a section, like lathe section, milling section etc.

Description : State the information required to do process planning. What is working drawing?

Last Answer : Information required to do process planning: [1] Assembly and Part drawings and Bill of Materials [2] Technical Details of Machine/Equipment to be used [3] Standard Times for operation ... their functional positions or as an exploded view where we relate the parts to their functional positions.

Description : State the information required to determine operation sequence.

Last Answer : Following information required to determine operation sequence; 1. Specification of raw material. 2. Specification of final product. 3. Time availability for dispatch. 4. Types of machine available. 5 ... 8. Plant layout. 9. Quantity to be manufactured. 10. Tolerance and accuracy.

Description : Compare Job and Batch production system with respect to: (1) Equipments (3) Investment (2) Labor (4) Examples of Products.

Last Answer : Difference between Job and Batch Production System with respect to following parameters:

Description : Compare a job production with mass production.

Last Answer : Comparison between Job and Mass Production with respect to different parameters:

Description : It takes `16 min` to boil some water in an electric kettle. Due to some defect it becomes necessary to remove `10 %` turns of the heating coil of the

Last Answer : It takes `16 min` to boil some water in an electric kettle. Due to some defect it becomes necessary to remove `10 ... min C. `20.9` min D. `13.9` min

Description : It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of ... 3.06 10 5 (B) 6.12 10 5 (C) 7.24 10 5 (D) 9.08 10

Last Answer : (A) 3.06 × 10

Description : A perfect product (with 100% awareness) starting with a survey score of 100, why is it that at 60% accessibility rating, 80% of customers have access to a product such that survey score declines from ... acquire the product. c. Because accessibility rating is not reliable. d. All of the above.

Last Answer : b. Of the 40% of customers without accessibility, 20% of them would make an extra effort to acquire the product.

Description : 71. If we take the number above, we can see that with increase of energy star rating there is a possibility of saving up to ________. a) 14% c) 15-20% b) 35% d) 30%

Last Answer : 14%

Description : In a large random data set following normal distribution, the ratio (%) of number of data points which are in the range of (mean ± standard deviation) to the total number of data points, is (A) ~ 50% (B) ~ 67% (C) ~ 97% (D) ~ 47%

Last Answer : Answer: B

Description : employment law, hourly worker told "we can't pay you overtime" Actual hours worked along with the 'required' 8 hours are documented. Overtime verifiable by presence of others at both ends of the day. Need to know if this is worth pursuing or not. Thank-yo?

Last Answer : Working over eight hours in one day does not neccessarily constitute overtime. Overtime may be determined by working over forty hours in one week,depending on the employer.

Description : In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil, is (A) 35 % (B) 50 % (C) 65 % (D) None of these

Last Answer : Answer: Option C

Description : The cost of replacement of inefficient chiller with an energy efficient chiller in a plant was Rs. 10 lakh .The net annual cash flow is Rs 2.50 lakh .The return on investment is: a) 18% b) 20% c) 15 % d) none of the above

Last Answer : d) none of the above

Description : List the time study equipments and its uses.

Last Answer : Time study equipments and its uses.  1. Time Stop watch- When a stop watch is used as a work measurement technique to record times and rates of working for the element of specified job carried ... and stopwatch in position.  4. Pencil, eraser, device like tachometer for checking the speed, etc.

Description : State the significance of time study. What are the different time study equipments used to perform time study?

Last Answer : [1] It can be used to examine time of existing method [2] implemented for setting standard time required for operation [3] Used to determine performance rating of worker [4] IT can be used to ... chart etc [4] Clock/ watch 5. Boards for holding watches and paper 6. Videotape recorders.

Description : The inland fish production is almost how much % of total fish production in India (a) Over 50% (b) 30% (c) 20% (d) 40%

Last Answer : (a) Over 50%

Description : From which of the following is robot programming language. (A) VAL (B) AML (C) ABD (D) Both (A) & (B)

Last Answer : D

Description : ____ grippers are used to transfer ferrous material. (A) Magnetic grippers (B) Mechanical grippers (C) Adhesive grippers (D) Vacuum cup grippers

Last Answer : A

Description : ____ grippers are used to pick up light weight materials such as paper,cloth etc. (A) Mechanical grippers (B) Adhesive grippers (C) Vacuum cup grippers (D) Magnetic grippers

Last Answer : B

Description : From which of the following is the type of robot. (A) Point to point robots (B) Continue path robot (C) Jointed arm robots (D) All of the above

Last Answer : D

Description : Grippers are used to_____. (A) Hold the objects (B) Sense the objects (C) Move the objects (D) Both (A) & (C)

Last Answer : D

Description : The capacity of robot to carry load is known as_____. (A) Load carrying capacity (B) Work envelope (C) Maximum reach (D) None of the above

Last Answer : A

Description : The capacity of robot to carry load is known as_____. (A) Load carrying capacity (B) Work envelope (C) Maximum reach (D) None of the above

Last Answer : C

Description : The speed at which robot is capable of manipulating its end effector is known as the____. (A) Velocity of robot (B) Maximum reach (C) Speed of movement (D) Load carrying capacity

Last Answer : C

Description : Which is also known as work volume of robot. (A) Work envelope (B) Speed of movement(C) Load carrying capacity (D) Precision of movement

Last Answer : A

Description : From which of the following is benefit of robot. (A) Variety of task (B) Computer control (C) Repetitive task (D) All of the above

Last Answer : D

Description : Which is area of engineering and science which understand the different principles, structure and programming of robot. (A) Mechatronics (B) Robotics (C) Aeronautics (D) None of the above

Last Answer : B

Description : What is end effector? Give its classification 

Last Answer : In robotics, an end effector is a device or tool that's connected to the end of a robot arm where the hand would be. The end effector is the part of the robot that interacts with the ... designed. Classification:- i) Mechanical clamping ii) Magnetic clamping iii) Vocum (suction) gripping

Description : How ‘5s’ can be used as inventory reduction technique? 

Last Answer : By applying 5S in industry to systematically results- Total organization, cleanliness and standardization in work piece. Well organized workplace. More efficient workplace. More ... of waste & making cleanliness  4. SEIKETSU means standardizing 5. SHITSUKE means self discipline 

Description : What is group technology? Give its applications.

Last Answer : Group technology is based on the general principle that many problems are similar and by grouping similar problems single solution can be found to a set of problems thus saving time and efforts. ... is used for manufacturing in automobile industry, fast food chains, doctors and dentists etc.  

Description : State the advantages and disadvantages of combined operations. 

Last Answer : combined operation:- if the number of operations are combined in one setting it is possible to reduce the production time and the operations can be performed with more accuracy. Advantages of ... More costly set up 3) Trained operators are necessary 4) Sometimes special machines are needed 

Description :  Explain the concept of AGV? State it’s any two applications. 

Last Answer : AGV is the battery operated programmed vehicle, used to carry load from one location to another by following a prescribed path around the manufacturing floor. It is a driverless vehicle, ... System) 2) AGV material handling system is very suited to computer integrated manufacturing system  

Description : Explain various Robot configurations with neat sketch. 

Last Answer : Different Robot Configurations: Robots are being classified on the basis of their physical configuration and control systems adopted. These classifications are briefly described as below: [1] ... direction for vertical insertion tasks. It is basically used for the assembly purpose.

Description : State advantages and disadvantages of ERP System. 

Last Answer : Advantages of ERP System: [1] Improved efficiency across business due to timely availability of information. [2] Better decision making owing to information integration. [3] Reduced inventory costs due ... [9] Lack of support from the ERP vendor, consultancy firm or the hardware vendor.

Description : What is ejector? Explain role and necessity of ejector in the design of jigs and fixtures.

Last Answer : Ejector: Ejector is used to remove the work piece from close fitted locators and is present behind the work piece. Ejector speed up the operation by reducing unloading time. This increases the ... [6] The combined mechanism used in Ejectors can be powered hydraulically or by compressed air. 

Description : State the functions of production planning.

Last Answer : Function of Production Planning: Production planning is the determination, acquisition and arrangement of all facilities necessary for future production of products. It performs following functions; [1] To ... ; D. [4] To efficiently utilize the available resources and plant facilities.

Description : Give classification of robot sensor. 

Last Answer : Classification of Robot Sensor: Robot Sensors senses and capability includes vision and hand eye coordination, touch, hearing, sensors will divided into the following categories.  [1] Vision Sensor: ... and the stored vocabulary word the robot performs some actions which correspond to the word. 

Description : Explain the concept of JIT and how does it help the manufacturing system to improve productivity?

Last Answer : Concept of JIT: [1] JIT is a Production methodology which aims to improve overall productivity through elimination of waste and which leads to improved quality. [2] JIT concept was ... ] It improves customer satisfaction [14] It improves working condition and relation between employees. 

Description : Explain the importance of ‘5S’ (“Five S”) Concept.

Last Answer : Introduction of 5 S Concept: [1] 5S is a process of workplace organization and housekeeping which is carried out gradually and systematically. [2] It is a structured program to implement workplace ... In fact, 5S is a basic step in a journey towards Total Quality Management (TQM).

Description : What are the different types of Fixtures? Explain any one with sketch.

Last Answer : Types of Fixtures: Following are the types of Fixtures according to the type of machine operations for which they are used. [1] Lathe (Turning) Fixture [2] Milling fixtures  [3] Grinding ... relative to the tool of the machine table and guide the broaching tool in relation to the job. 

Description : Explain the principle of working of hydraulic actuator and state its advantages.

Last Answer : Working Principle of Hydraulic Actuator  1. According to Pascal, when there is an increase in pressure at any point in a confined incompressible fluid, then there is an equal increase at every point in ... better performance than others. 3. Power to weight ratio of these actuators is high.

Description : List down various types of clamping devices used in design of Jigs. Explain any one with sketch.

Last Answer : List of Types of clamping devices used in design of jigs. i. Screw clamp ii. Pivoted clamp. iii. Equalizing clamp. iv. Latch clamp. v. Wedge clamp. vi. Hinged jaw clamp. ... to be gripped on its edges as shown in figure. This arrangement ensures easy machining of the work piece 

Description : Explain the following terms in context with work study.

Last Answer : i. Therbligs. ii. MTM (Method Time Measurement)  Therbligs :  1. Therbligs are used to describe the basic element of movement or fundamental hand motions of the work cycle. 2. Every ... sum of these motion times is the time an operator of average skill would take to perform the task.

Description : State the various stages at which inspection should be planned. 

Last Answer : Stages of inspection: 1. Inspection of incoming materials, raw materials or received materials including bought out items. 2. In process inspection: It includes following stages; a. ... on completed assemblies under conditions similar to field conditions.  3. Inspection of finished goods.

Description : Explain the need and importance of material handling devices in an industry. 

Last Answer : Need of material handling devices: Material handling is an important activity in the industries. A large part of indirect labour employed in an industry is engaged in handling of materials. It has ... material handling and provides proper working conditions. 6. Reduced in process inventory.

Description : What is the salient feature of industrial policy as regards to backward areas?

Last Answer : Salient features of industrial policy:  1. Industrial extension services through small industries service institute and other organizations. 2. Factory space in industrial estate through cooperative and ... purchases. 9. Reservation of product for exclusive manufacture in the small-scale sector.

Description : Explain the various steps for planning a process for product from raw material to finished product in an industry.

Last Answer : 1. Analysis of Product and its specification: - During analysis, following parameter should be considereda. Drawing and specification of product. b. Quality of product. c. Number of parts/components per ... and fixing the rates of payment. 11. Prepare the route sheet and operation sheet.

Description : Define scheduling. What are various steps taken to control the production scheduled.

Last Answer : Scheduling: It is the assignment of work to the facility with the specification of time. Scheduling is the time phase of loading specifying starting and end time for a particular work to be done. ... is impossible to perform according to plan, then it is necessary to re-plan the whole activities.