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Q. Show the Methods of material handling?
Methods of material handling during operations and maintenance activities shall be considered for all facilities to ensure that the final design will provide sufficient materials handling space and equipment. Special consideration shall be given for the dynamic movement of a load and lifting equipment and the effect it may have when installing and removing equipment.
Materials handling equipment such as davits, trolley beams, and ramps shall be provided as appropriate to handle materials such as chemicals and catalysts for plant operation. Trolley beams, hoists, monorails, cranes, davits or jibs shall be provided as appropriate to service equipment such as pumps, motors, scraper launchers/receivers, compressors, turbines, relief valves (nominal 100 mm (4 in) and larger), and manhole covers. These lifting facilities shall extend beyond equipment foundations into drop zones accessible to mobile equipment.
Trolley beams or davits may be provided at the top of columns with internals and/or with flanges over a nominal 100 mm (4 in) or weighing over 36 kg (80 lb.). Manhole covers shall be hinged or equipped with davits. Manhole covers on the underside of horizontal pressure vessels shall be counterbalanced if their weight is over 36 kg (80 lb.). Materials storage space shall be provided as appropriate for materials such as chemicals and catalysts. Removable sections of floors, platforms, walls and roofs shall be provided as appropriate for removing and lowering machinery components to grade level for further handling by mobile equipment. However, built-in equipment handling facilities shall be provided where practical.
NOR Gate NOR means NOT OR . it complements the output of an OR gate. The symbol of Nor gate in fig. (a) shows that a Nor gate comprises of an OR gate followed by a N
Explain 8259 Pin Diagram. The 8259A adds 8 vectored priority encoded interrupts to the microprocessor. It can be expanded to 64 interrupt requests by using one master 8259A and
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Q. Show Application of bistable multivibrator? · Bistable multivibrator is used as counters and storing of binary information. · It is used as frequency divider in timing ci
Q. A tank is filled with water to a height of 12.5cm.The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4cm.What is the refractive i
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Q. Explain the operation of N-channel FET? Transistor is a linear semiconductor device that controls current with the application of a lower-power electrical signal. Transistor
An n-channel depletion MOSFET, for which I DSS = 7mA and V P = 4 V, is said to be operating in the ohmic region with drain current i D = 1 mA when v DS = 0.8 V. Neglecting the
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