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43. Fillers in a lead acid battery are provided to
A) Allow flow of gases B) Recover acid losses through vapour
C) Prevent flow of gases D) None of the above
44. In which solar energy collector the efficiency is maximum ?
A) Evacuated tube B) Line focusing
C) Flat plate D) Paraboloid dish
45. The primary purpose of a grounding system is to ०५०५९ 8 ட path for

46.

47,

49.

50.

51.

currents to the earth.

A) High resistance B) Low impedance

C) High impedance D) None of the above

Two 12 Volt 60 Ah batteries are connected in parallel, we get output.
A) 12 Volt 120 Ah B) 24 Volt 60 Ah

C) 24 Volt 120 Ah D) 12 Volt 30 Ah

Hydrometer is used to measure the in a lead acid cell.

A) Current rating B) Specific gravity of electrolyte

C) Power rating D) Efficiency

. The capacity of a cell increases with

A) The increase in plate surface area

B) The quantity and specific gravity of the electrolyte
C) The porosity of the separators

D) All of the above

For voltages and body resistances will increase the degree
of electrical shock to the human body.

A) higher, higher B) lower, higher
C) higher, lower D) lower, lower

Which of the following device will not operate at fault ?
A) 18018107 B) Circuit breaker
C) Fuse D) MCB

Melting point of Tungsten is
A) 2400°C B) 2700°C C) 3000°C 0) 3400°C

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