9 a) Explain the operatmg pnnciple of a fuel cell. (5) b) List

the different types of fuel cell systems available for HEVs.

(5)
10 Discuss about the construction and working of the following
short-term storage systems: (10)

(i) Superconducting magnets (11) Hydraulic Accumulators
1 1 Explain the construction and working of Molten Carbonate fuel cell (MCFC) (10)

with the help of a suitable sketch
12 Explain the construction and working of the following fuel cells: (10)

(i) phosphoric acid fuel cell (ii) Photon exchange membrane fuel cell

13 Explain the three modes of operation and working of series hydraulic hybrid
(10)

vehicle with the help of a neat sketch.

14 With the help of a suitable sketch, explain the construction and working of
(10)

Pneumatic hybrid system.