TSSA Practice 1 Question with 100% correctly researched answers.

TSSA Practice 1 Question with 100% correctly researched answers. A 7m long bar of negligible mass is supported on a fulcrum, situated 4.7m from the left end. A 13.5N force is applied downward at the right end of the bar. What force is required at the left end for equilibrium? - 6.61 N A bimetal thermometer consists of: - Two dissimilar metals welded together. What are the main component metals of "white metal"? - lead and tin Industrial stack emissions are - reflective of the type of fuel being burned A Van Stone flange is fitted ___________ on a pipe: - Loosely Which one of the following fusion welding is a totally manual process? - oxy-fuel The state of matter of a particular substance is dependent on its: - Temperature and pressure The "flash point" of a flammable liquid is the temperature at which: - the liquid will produce enough vapour to form a flammable mixture when mixed with air On a P&ID, symbols are used for instrumentation the first letter stands for - What is being measured The low water fuel cutoff is a device fitted to the boiler to shut the: - Fuel valve if the water level becomes too low The unit of measure for work in the SI system is: - Joules The purpose of the non-return valve on a boiler is to_____________________. - Prevent the back flow of steam into the boiler The ratio between the ultimate strength and the allowable stress is called the - Safety factor The efficiency of a combined cycle plant, using a pressurized fluidized bed boiler, is about _____ higher than that of a conventional pulverized coal plant. - 5% A Bourdon tube may be manufactured in the shape of a helix so that _______________________ than a standard bourdon tube - It has enough power and rotation to move the pens of a recorder without the use of gears If a substance goes through a process that changes its composition so that it is no longer the same substance, then the substance has undergone a: - Chemical change By doing this, waste disposal can be made to be more effective. - Treat the waste