Submission, Opening, and Scrutiny of Tender

Submission of Tender

In order to keep secrecy until the opening of the tender, they should be submitted under sealed cover at the latest by the closing time. For identity purposes, the name of the work and its due Date should be clearly written on the top of the envelope. Tenders may be sent by post or can be put in the letterbox kept for this purpose on the premises of the office. The time usually is kept up to 5 clocks. i.e. the office hour or after the normal delivery time of delivery by post Tenders received after the due time and date are rejected.

Opening of Tender

The valid tenders are opened at the notified time in the presence of underwear or their representatives. Each page of the tender has to be initialed in the opening officer.

Scrutiny of Tender

Each tender is scrutinized carefully and any writings or cutting are initialed By the opening officer to ensure that tenders are not tampered with at a later stage.

RS Aggarwal Aptitude Book PDF Free Download

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Limitations of Terzaghi Theory

Limitations of Terzaghi Theory The value of the coefficient of consolidation has been assumed to be constant. The distance d of the drainage path cannot be measured accurately in the field. The thickness of the deposit is generally variable, and an average value has to be estimated. There is sometimes difficulty 1n locating the drainage face, and sometimes thin previous seams that can act as good drainage faces are missed in the boring operations. The equation is based on the assumption that the consolidation is one-dimensional. In the field, the consolidation is generally 3-dimensional. The lateral drainage may have a significant effect on the time rate of consolidation. The initial consolidation and secondary consolidation have been neglected. Sometimes these form an important part of the total consolidation. In actual practice, the pressure distribution may be far from linear or uniform.

Types Of Current Collector

Current Collector A current collector is a device used to collect electrical current from a moving conductor, such as a train or a trolley. It is typically used in electric vehicles, such as trains and trams, to transfer power from an overhead power source to the vehicle's electric motor. The current collector consists of a sliding contact, which is often made of carbon or copper, that makes contact with an overhead power source, such as an overhead catenary wire or a third rail. The sliding contact is mounted on the vehicle and is typically in the form of a pantograph or a trolley pole. The pantograph is a device with a metal frame and a spring-loaded arm that presses against the overhead power source. It is raised and lowered by the operator of the vehicle, and as it moves along the overhead power source it maintains contact and collects the electrical current. The trolley pole is a vertical pole that is mounted on the roof of the vehicle and has a horizontal arm that extends out

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