Skip to main content

The general safety measures taken during civil engineering construction.

The following safety measures are taken during civil engineering construction. (i) Suitable scaffolds should be provided for workmen. (ii) When ladder are used, it should be provided with foot holds and hand holds and inclination of one is to four (1 horizontal : 4 vertical) be provided. (iii) The scaffolding should be properly supported and shall have a guard rail property attached to it. (iv) Every opening in floor of a building should be provided with suitable means to prevent the fall of persons or materials. (v) Fencing and lights shall be provided to protect the public from accident. (vi) The excavated material shall not be placed within 1.5m of the edge of the trench or half the depth whichever is more to avoid collapse of sides due to surcharge. (vii) No undermining or undercutting shall be allowed. (viii) All roads and open areas adjacent to any side where demolition is to be carried out, must be closed or suitably protected. (ix) No electrical cable etc. shall remain electric...
Post a Comment

Decision Making in Scientific Management

Question 1(b): How is decision making in scientific management different from decision making in traditional management? (Summer 2005)

Scientific management was developed and introduced by F. W. Taylor in 1910 and he is known as 'father of scientific management'. Throughout his career, Taylor was cencerned with the problem of increasing labour productivity without putting undue strain on workers.

Scientific management means the application of scientific methods of study analysis to the problems of management. It is a systemetic and thoughtful approach to the job of management as compared to the rule of thumb or trial and error. It is concerned with the scientific bent of mind and is more than merely a set of techniques for improving efficiency. In order to execute the principles of scientific management Taylor and his associates developed the following techniques.

1. Scientific work study: It involves the measurement and improvement of work. Scientific work study includes: 

(i) Method Study: This study involves the critical examination of plan layout, product design, material handling and work processes, to minimise time, distance and cost involved in the transportation and storage of materials. 

(ii) Motion Study: It refers to the study of the movement of an operator or a machine involved in a task with a view to eliminate unworked or useless motions. Motion study helps to find the best method of doing work. Gilberth identified 17 basic motions involved in every human operation. These are search, select, grasp, transport empty, transport loaded, hold, release load, position, proposition, inspect, assembly, disassemble, use, unavoidable delay, avoidable delay, plan and rest for overcoming fatigue. Symbolically SH, ST, G, TE, TL, H, RL, P, PP, I, A, DA, U, UD, AD, Pn, & R (17).

(iii) Time Study: It implies the study of time taken to perform each operation of a job in order to find out the proper time that should be taken in doing the job. 

(iv) Fatigue Study: It implies provision of rest hours after a set time interval. During the rest time the worker can recoup (recover) his energy.

2. Scientific Task Setting: It is the technique of forecasting and viewing ahead every step in a long series of separate operations. It include:

(a) Routing: It implies laying out the route or both to be followed by each piece of raw material before its conversion into finished product. 

(b) Scheduling: It refers to time - table of operation.

(c) Despatching: It involves assembling of necessary resources, assignment of jobs, supervision of work, enforcing discipline and coordinating activities.  

(d) Follow-up: It is the last step in scientific planning which refers to checking of work and taking corrective steps to ensure that each piece of work is completed at the right time. 


Labels:

Comments

Post a Comment

Kindly let me know, if you want to know anything.

Popular posts from this blog

Fibre Reinforced Concrete

Fibre reinforced concrete is a composite material essentially consisting of conventional concrete or mortar reinforced by random dispersal of short, discontinuous and discrete fine fibres of 25-50mm long and 0.25 to 0.50 mm in diameter, consisting of 4 to 5% weight and of specific geometry. The fibres interlock and entangle around aggregate particles and considerably reduce the normal workability while mix becomes more cohesive and less prone to segregation. The fibres suitable for reinforcing the concrete have been produced froom steel, glass and organic polymers. Naturally occuring asbestos and vegetable fibres, such as jute are also used for reinforcement. Steel, carbon and glass have higher elastic moduli than cement mortar matrix and polypropylene and vegetable fibres are low modulus fibres. High modulus fibres improve both flexural and impact resistance simultaneously whereas low modulus fibre improve impact resistance of concrete but do not contribute much to flexural strength. ...
Post a Comment
Read more

Differences between manufacturing and service operations.

Question : What are the important differences between manufacturing and service operations ? (Summer 2005) Manufacturing Operations :  1. Manufacturing involve tangible goods production. 2. Manufacturing involve heavy plant and machinery. 3. Raw materials, work in process and finished goods can be inventoried. 4. Maintenance is often preventive and takes place at production site. 5. Customer is not in the most of the process. Service Operations :  1. Services are usually intangible (ex: buying a ride on a vehicle) 2. Services are often produced and consumed simultaneously. 3. Services have inconsistent product definition. 4. Maintenance is often repair and takes place at customer's site. 
Post a Comment
Read more

Delegation is neither decentralization nor are their purpose the same.

Delegation is a process, while decentralisation is the end result of delegation and dispersal of authority. Delegation mainly refers to the granting of authority and the creation of responsibility as between the individual and superiors whereas decentralisation is the situation which exists as a result of the systematic delegation of authority throughout the organisation. In delegation, a superior continues to be responsible for the work delegated to his subordinates, while in decentralisation the superior is relieved from his responsibility for the work decentralised and the subordinate become liable for that. Delegation is vital and essential to the management process. Only through delegation, subordinates can be involved in the organisation and the management can get things done. Decentralized is optional, in the sense that it may or may not be practised as a systematic policy.  
Post a Comment
Read more