Description : Suggest the type of cement used for the following : (i) For modular construction where form work needs to be removed early for re-use. . (ii) Mass concreting such as construction of dam. (iii) Decorative works in external surfaces of building. (iv) Cementing the oil well.
Answer : i) For modular construction where form work needs to be removed early for reuse. – Rapid Hardening Cement ii) Mass concreting such as construction of dam. – Low heat cement. iii) Decorative works in external surfaces of building – Coloured cement. iv) Cementing the oil well. – Oil Well Cement.
Answer : Natural oil cooling is used for transformers up to a rating of 3000 kVA.
Answer : Current transformers (CT) : Current transformer (CT) actually step down the high current to low current for the operation of relays. Current transformer is use for measurement of ... use for relay. This is about potential transformer.
Description : Core type transformers are popular in___________. (A) High voltage applications (B) Low voltage applications (C) All of the above (D) None of the above
Answer : Core type transformers are popular in High voltage applications
Description : Name this much publicized group of compounds, of which there are 209 congeners. It was first discovered as an environmental pollutant in 1966, and its widespread use in electrical transformers has ... food chain to such an extent that most adults have small concentrations in their fatty tissue.
Answer : ANSWER: PCB's (Accept POLYCHLORINATED BIPHENYL'S)