Bulb of lead acid battery rated at . . . . . . . . V . . . . . . . . amps giving light output of . . . . . . . . lumens.
A. 4; 0.67; 30
B. 3; 0.57; 20
C. 4; 0.58; 25
D. 3; 0.67; 10
Answer: Option A
A. 4; 0.67; 30
B. 3; 0.57; 20
C. 4; 0.58; 25
D. 3; 0.67; 10
Answer: Option A
The bulb of old ham lead acid battery is filled with . . . . . . . .
A. Nitron
B. Butron
C. Krypton
D. None
When methane is burnt two gasses are formed with a blue flame. Name the gases.
A. CO2 + CO
B. CO2 + H2O
C. CO2 + N2
D. CO2 + CH4
The greatest danger of pneumo coniosis in the size of dust is . . . . . . . .
A. 3 micron
B. 5 micron
C. 4 micron
D. 1 micron
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