Which of the following should be used for extinguishing electrical fires?
A. Water
B. Carbon tetrachloride fire extinguisher
C. Foam type fire extinguisher
D. CO2 fire extinguisher
Answer: Option B
A. Water
B. Carbon tetrachloride fire extinguisher
C. Foam type fire extinguisher
D. CO2 fire extinguisher
Answer: Option B
Which of the following is not a source of power ?
A. Thermocouple
B. Photovoltaic cell
C. Solar cell
D. Photoelectric cell
Depreciation charges are high in case of
A. thermal plant
B. diesel plant
C. hydroelectric plant
D. none of the above
_______ is invariably used as base load plant.
A. Diesel engine plant
B. Nuclear power plant
C. Gas turbine plant
D. Pumped storage plant
An alternator coupled to a _____ runs at slow speed, as compared to as compared to others.
A. diesel engine
B. hydraulic turbine
C. steam turbine
D. gas turbine
Carbon dioxide (CO 2) is correct answer