Inhalation of silica dust causes a disease called__________________?

Related Mcqs:

Which of the following is not a weightless pollutant ?

A. SPM B. Thermal pollution C. Radioactive rays D. Noise pollution...

Presence of nitrates in water in excess of 50 ppm causes________________?

A. Methemoglobinemia B. Gastroenteritis C. Asphyxiation D. Tooth decay...

Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called__________________?

A. Grit B. Dust C. Powder D. Smoke...

Higher concentration of CO2 in atmosphere_____________________?

A. Allows visible solar radiation (ultraviolet) of short wave-length to pass through B. Reflects and absorbs the longer wavelength (infra-red) radiations C. Prevents solar heat being radiated out completely, resulting in ‘heat trap’ i.e., global warming D. All A., B. and C....

In a sedimentation tank, the detention period for water ranges from _____________ hours?

A. 2 to 4 B. 8 to 12 C. 16 to 20 D. 24 to 32...