(a) Describe, with the aid of a sketch, an explosimeter for the detection of combustible gas. (6) (b) Describe how the instrument sketched in part (a) is tested and calibrated. (4)
Control system
(a) Describe, with the aid of a sketch, an explosimeter for the detection of combustible gas. (6) (b) Describe how the instrument sketched in part (a) is tested and calibrated. (4)
Control system
UKM Tuticorin 
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