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Conductive probes are placed into the side of the open tank to act as level alarms. If the base of tank is 2.0 m above the ground and the maximum operating level is 10.0 m above the ground.

The probes are placed as follows:

High High alarm at a height 110% of the operating range

High alarm at a height 95 % of the operating range

Low alarm at a height 10% of the operating range

Low Low alarm at a height 5 % of the operating range

a) Calculate the operating range (m) above the base of the tank Calculate the distance above the base of the tank for the:

b) High High alarm

c) High alarm

d) Low alarm

e) Low Low alarm

Fig: 1