Home/Volume-2/Miner’s diseases and Dust Hazards Volume-2 Miner’s diseases and Dust Hazards Admin03/08/20240 37 Less than a minute Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% Miner's Diseases and Dust Hazards Miner's diseases and Dust Hazards 1 / 13 1. The level of tolerance of noise is? 20 to 50 dB 50 to 70 dB 70 to 85 dB 90 to 110 dB 2 / 13 2. The place is said to be dusty if the dust concentration is? 1 mg/cu.m 5 mg/cu.m 10 mg/cu.m 20 mg/cu.m 3 / 13 3. P.R.U pump dust sampler uses the principle of? Thermal precipitation Impaction Impingement i.e inertia precipitation Scattering of light 4 / 13 4. The particles of silica measuring .... microns in dia are most apt to produce damage? 0.5 to 2.5 2.5 to 3 3 to 4 4 to 6 5 / 13 5. The disease caused due to insufficient light is? Nystagmus Ankylostomiasis Silicosis Asbestosis 6 / 13 6. Personal protective equipment is required if the noise level is? 80 dB 90 dB 125 dB 140 dB 7 / 13 7. The disease caused due to exposure to a dusty atmosphere containing a large amount of smoke? Anthracosis Ankylostomiasis Silicosis Asbestosis 8 / 13 8. The disease caused to inhalation of iron dust is? Ankylostomiasis Silicosis Asbestosis Siderosis 9 / 13 9. The disease caused due to working in insanitary working conditions by a thread like blood-sucking worm which enters the body through the skin is? Nystagmus Ankylostomiasis Silicosis Asbestosis 10 / 13 10. Konimeter dust sampler uses the principle of? Thermal precipitation Gravity Impingement i.e inertia precipitation Optical method 11 / 13 11. The permitted content of silica dust in mine air should not exceed ? 1 mg/cu.m 2 mg/cu.m 3 mg/cu.m 4 mg/cu.m 12 / 13 12. A worker should not be allowed to enter without appropriate ear protection an area in which the noise level is? 90 dB 115 dB 125 dB 140 dB 13 / 13 13. The disease caused due to inhalation of hydrated magnesium silicate? Ankylostomiasis Silicosis Asbestosis Siderosis Your score is The average score is 60% LinkedIn Facebook Twitter 0% Admin03/08/20240 37 Less than a minute