Question 11 : The function of a distributor in a coil ignition system of I.C. engines is
1. to distribute spark
2. to distribute power
3. to time the spark
4. to distribute current
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Question 12 : Which of the following is not as a consequence of global warming?
1. rising sea level
2. increased agricultural productivity worldwide
3. worsening health effects
4. increased storm frequency and intensity
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Question 13 : Which of these fuel cells operates at high temperatures and pressures?
1. high temperature solid oxide fuel cell
2. alkaline fuel cell
3. molten carbon fuel cell
4. phosphoric acid fuel cell
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Question 14 : In a four stroke cycle petrol engine, the inlet valve
1. opens at top dead centre and closes at bottom dead centre
2. opens at 20° before top dead centre and closes at 40° after bottom dead centre
3. opens at 20° after top dead centre and closes at 20° before bottom dead centre id may open or close anywhere
4. none of the mentioned
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Question 15 : Intercooling is done in?
1. CI Engines
2. SI Engines
3. Gas Turbines
4. None of the mentioned
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Question 16 : For which of these devices does negative charge carriers flow from anode to cathode in the external circuit?
1. MHD generator
2. Thermionic generator
3. Thermoelectric generator
4. Fuel cell
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Question 17 : Which of these fuel cell operates at temperature below 100.C?
1. phosphoric fuel cell
2. solid polymer electrolyte fuel cell
3. molten carbon fuel cell
4. hydrogen-oxygen fuel cell
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Question 18 : Which of these should not be a properties of fuel cell electrodes?
1. good electrical conductors
2. highly resistant to corrosive environment
3. should perform charge seperation
4. take part in chemical reactions
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Question 19 : Which of the following is not an important characteristic of the Green Revolution?
1. mechanized agriculture
2. hybrid seeds
3. slash and burn
4. monoculture
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Question 20 : Which of the following does not relate to a compression ignition engine?
1. Fuel injector
2. Fuel pump
3. Governor
4. Carburettor
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