1. : When we are not using pulverized fuel in the boiler, which equipment is used for supplying coal?
(A) Heater
(B) Stoker
(C) Burner
(D) Skip hoist
2. : Where is hydrogen cooling used?
(A) Water wheel generators
(B) Turbogenerators
(C) Both (A) and (C)
(D) None of these
3. : The draught which a chimney produces is called:
(A) Natural draught
(B) Reduced draught
(C) Balanced draught
(D) None of these
4. : What is the permissible pH of water used in boilers?
(A) Slightly greater than 7
(B) Less than 7
(C) Exactly 7
(D) Exactly 10
5. : Velox boiler is a:
(A) Low-pressure boiler
(B) High-pressure boiler
(C) Medium-pressure boiler
(D) None of these
6. : In which cycle is bled steam used to heat feed water for the boiler?
(A) Fixation cycle
(B) Regenerative cycle
(C) Nitrogen cycle
(D) None of these
7. : What is the fibrous portion of sugarcane left after extracting the juice called?
(A) Fuel gas
(B) Biogas
(C) Bagasse
(D) None of these
8. : Lignite coal has:
(A) Low calorific value
(B) High calorific value
(C) Medium calorific value
(D) None of these
9. : How is the chemical composition of coal given?
(A) Orast analysis
(B) Proximate analysis
(C) Ultimate analysis
(D) None of these
10. : Which of the following is a low-head axial flow turbine?
(A) Radial turbine
(B) Francis turbine
(C) Kaplan turbine
(D) None of these
11. : Isotopes are elements that have:
(A) Same atomic number only
(B) Different atomic number only
(C) Same atomic number but different mass number
(D) Same mass number but different atomic number
12. : Which of the following is a non-petroleum fuel?
(A) Benzol
(B) Iodine
(C) Coal
(D) None of these