In coal preparation plant, magnetic separators are used to remove___________?

Related Mcqs:

1. Method which is commonly applied for unloading the coal for small power plant is___________?

   A. lift trucks B. coal accelerators C. tower cranes D. belt conveyor...

2. Belt conveyer can be used to transport coal at inclinations upto____________?

   A. 30° B. 60° C. 80° D. 90°...

3. The efficiency of a modern boiler using coal and heat recovery equipment is about_____________?

   A. 25 to 30% B. 40 to 50% C. 65 to 70% D. 85 to 90%...

4. Where unpulverised coal has to be used and boiler capacity is large, the stoker which is used is______________?

   A. underfeed stoker B. overfeed stoker C. any...

5. The overall efficiency of thermal power plant is equal to____________?

   A. Rankine cycle efficiency B. Carnot cycle efficiency C. Regenerative cycle efficiency D. Boiler efficiency x turbine efficiency x generator efficiency...

6. Rankine cycle efficiency of a good steam power plant may be in the range of____________?

   A. 15 to 20 per cent B. 35 to 45 per cent C. 70 to 80 per cent D. 90 to 95 per ceut...

7. In thermal power plant, heat from the flue gases is utilized in___________?

   A. super heater B. condenser C. economizer D. chimney...

8. Annual operating expenditure of a power plant consists of_________?

   A. fixed charges B. semi-fixed charges C. running charges D. all of the above...

9. Which of the following power plant has highest Depreciation charges?

   A. Thermal plant B. Diesel plant C. Hydroelectric plant D. All have same...

10. Which of the following Power Plant causes least environmental pollution____________?

    A. Thermal Power Plant B. Hydro Power Plant C. Nuclear Power Plant D. Diesel Power Plant...