What does Hydrogen fuel cell vehicles produce as “exhaust”?

What does Hydrogen fuel cell vehicles produce as “exhaust”?
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H2O
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1. What is the largest lymphatic organ of the body? 2. Indian Constitution recognises minorities on which basis? 3. What does Hydrogen fuel cell vehicles produce as “exhaust”? 4. Which is a landlocked country? 5. Who deserves the credit for the construction of Lal Quila at Agra ?

Description : 1. What is the largest lymphatic organ of the body? 2. Indian Constitution recognises minorities on which basis? 3. What does Hydrogen fuel cell vehicles produce as exhaust ? 4. Which is a ... the oldest and still producing oil? 20. Which Mughal Emperor introduced the policy of Sulah-i-kul?

Last Answer : Answer : 1. Spleen 2. Religion 3. H2 O 4. Hungary 5. Akbar 6. New Delhi 7. The demand exceeds the supply 8. Below the brain 9. Lakshadweep and Minicby 10. J. B. Kriplani 11. As a Union ... 14. Reef formation 15. Chowdhary Rahmat Ali 16. Onam 17. Cerebrum 18. Centre and States 19. Digboi 20. Akbar

What do you understand by the term Dark Fermentation'? (1) It is a method to dispose nu-clear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Description : What do you understand by the term Dark Fermentation'? (1) It is a method to dispose nu-clear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Last Answer : (4) It is a method to produce Hydrogen as a fuel from waste water. Explanation: Dark fermentation is the fermentative conversion of organic substrate to bio-hydrogen. It is a complex ... . Wastewater is used as a potential substrate for bio-hydrogen production in the dark fermentation process.

What do you understand by the term ‘Dark Fermentation’? (1) It is a method to dispose nuclear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Description : What do you understand by the term ‘Dark Fermentation’? (1) It is a method to dispose nuclear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Last Answer :  It is a method to produce Hydrogen as a fuel from waste water.

Why is it that nearly every automobile that has the exhaust on the right side has the fuel delivery on the left side, and vice versa?

Description : Why is it that nearly every automobile that has the exhaust on the right side has the fuel delivery on the left side, and vice versa?

Last Answer : As exhausts produce heat they usually want to keep em as far away from the fuel tanks as possible :-)

If one cylinder of a diesel engine receives more fuel than others , then for that cylinder the A. exhaust will be smoky B. scavenging occurs C. exhaust temperature will be high D. engine starts overheating

Description : If one cylinder of a diesel engine receives more fuel than others , then for that cylinder the A. exhaust will be smoky B. scavenging occurs C. exhaust temperature will be high D. engine starts overheating

Last Answer : ANSWER : B

In four stroke engine which of the following is also known as power stroke a. Suction stroke b. Compression stroke c. Expansion stroke d. Exhaust stroke (Ans:c) Measurements of fuel and air consumption, brake power and incylinder pressure. Tutorials on engine performance parameters. Heat balance sheet. Engine performance curves. 1. The increase in intake air temperature into IC engine,___________its efficiency A. increase B. decrease C. does not alter D. unpredictable on

Description : In four stroke engine which of the following is also known as power stroke a. Suction stroke b. Compression stroke c. Expansion stroke d. Exhaust stroke (Ans:c) Measurements of fuel and air ... into IC engine,___________its efficiency A. increase B. decrease C. does not alter D. unpredictable on

Last Answer : ANSWER : B

Fuel is injected into the cylinder at the end of ______________ stroke. a) suction b) compression c) expansion d) exhaust

Description : Fuel is injected into the cylinder at the end of ______________ stroke. a) suction b) compression c) expansion d) exhaust

Last Answer : Answer: b Explanation: Fuel is injected into the cylinder at the end of compression stroke and not at suction or expansion stroke.

The _____________ sensor, monitors mass or volume of air flowing into the intake manifold for adjusting the quantity of fuel. a) engine temperature b) exhaust gas c) air flow d) air inlet temperature

Description : The _____________ sensor, monitors mass or volume of air flowing into the intake manifold for adjusting the quantity of fuel. a) engine temperature b) exhaust gas c) air flow d) air inlet temperature

Last Answer : Answer: c Explanation: The air flow sensor, monitors mass or volume of air flowing into the intake manifold for adjusting the quantity of fuel while exhaust gas senor senses the amount of oxygen in the engine exhaust and calculates air-fuel ratio.

In _____________ sensor, output voltage changes in proportion to air-fuel ratio. a) engine temperature b) exhaust gas c) air flow d) air inlet temperature

Description : In _____________ sensor, output voltage changes in proportion to air-fuel ratio. a) engine temperature b) exhaust gas c) air flow d) air inlet temperature

Last Answer : Answer: b Explanation: Only in exhaust gas sensor, output voltage changes in proportion to air-fuel ratio.

_____________ senor senses the amount of oxygen in the engine exhaust and calculates air-fuel ratio. a) Engine temperature b) Exhaust gas c) Air flow d) Air inlet temperature

Description : _____________ senor senses the amount of oxygen in the engine exhaust and calculates air-fuel ratio. a) Engine temperature b) Exhaust gas c) Air flow d) Air inlet temperature

Last Answer : Answer: b Explanation: Exhaust gas senor senses the amount of oxygen in the engine exhaust and calculates airfuel ratio while engine temperature sensor senses the temperature of the engine coolant, and from this data the computer adjusts the mixture strength to rich side for cold starting.

For same power output and same r, as compared to 2- stroke engines, four stroke SI engines have (a) Higher fuel consumption (b) Lower thermal efficiency (c) Highest exhaust temperatures (d) Higher thermal efficiency

Description : For same power output and same r, as compared to 2- stroke engines, four stroke SI engines have (a) Higher fuel consumption (b) Lower thermal efficiency (c) Highest exhaust temperatures (d) Higher thermal efficiency

Last Answer : Ans :d

Supercharging is the process of a. supplying the engine with air at a density greater than the density of the surrounding atmosphere b. providing forced cooling air c. injecting excess fuel d. raising the exhaust pressure

Description : Supercharging is the process of a. supplying the engine with air at a density greater than the density of the surrounding atmosphere b. providing forced cooling air c. injecting excess fuel d. raising the exhaust pressure

Last Answer : ANSWER a. supplying the engine with air at a density greater than the density of the surrounding atmosphere

In a diesel engine the high temperature needed to ignite the fuel is achieved by – (1) using heat from exhaust (2) the battery (3) compressing air in the cylinders (4) an electrical spark

Description : In a diesel engine the high temperature needed to ignite the fuel is achieved by – (1) using heat from exhaust (2) the battery (3) compressing air in the cylinders (4) an electrical spark

Last Answer : (3) compressing air in the cylinders Explanation: Diesel engines use the heat of compressed air to ignite the fuel (intakes air, compresses it, then injects fuel). Diesel engines need high compression ratios to generate the high temperatures required for fuel auto ignition.

Higher efficiency in the combustion of solid fuel cannot be achieved by (A) Proper fuel preparation (B) Keeping the flue gas exhaust temperature very high (C) Adopting efficient-fuel firing technique & equipment (D) Supplying correct quantity of combustion air

Description : Higher efficiency in the combustion of solid fuel cannot be achieved by (A) Proper fuel preparation (B) Keeping the flue gas exhaust temperature very high (C) Adopting efficient-fuel firing technique & equipment (D) Supplying correct quantity of combustion air

Last Answer : (B) Keeping the flue gas exhaust temperature very high

Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for (A) Conversion of CO into CO2 in the second compartment (B) Conversion of NOx into N2 and NH3 in the first compartment (C) Oxidation of unburnt hydrocarbon fuel in the second compartment (D) All (A), (B) and (C)

Description : Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for (A) Conversion of CO into CO2 in the second compartment (B) Conversion of NOx into N2 and NH3 in the first ... of unburnt hydrocarbon fuel in the second compartment (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Description : Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Last Answer : (B) Automobiles exhaust

__________ the exhaust gas is an indication of the incomplete combustion of fuel. (A) Low temperature of (B) High temperature of (C) High % of CO in (D) High % of CO2in

Description : __________ the exhaust gas is an indication of the incomplete combustion of fuel. (A) Low temperature of (B) High temperature of (C) High % of CO in (D) High % of CO2in

Last Answer : (C) High % of CO in

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines? (A) Air filter (B) Fuel injector (C) Exhaust silencer (D) Battery

Description : Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines? (A) Air filter (B) Fuel injector (C) Exhaust silencer (D) Battery

Last Answer : Option B

Based on the exhaust gas analysis, a controller maintains stoichiometric combustion __ a. by commanding a servo motor to adjust the combustion air damper b. By commanding servo motor to adjust the fuel supply valve. c. Both a. & b. d. None of the above.

Description : Based on the exhaust gas analysis, a controller maintains stoichiometric combustion __ a. by commanding a servo motor to adjust the combustion air damper b. By commanding servo motor to adjust the fuel supply valve. c. Both a. & b. d. None of the above.

Last Answer : c. Both a. & b.

The economiser is used in boilers to........ A]Increase thermal efficiency of boiler B]Economise on fuel C]Extract heat from the exhaust the gases D]Increase flue gas temperature

Description : The economiser is used in boilers to........ A]Increase thermal efficiency of boiler B]Economise on fuel C]Extract heat from the exhaust the gases D]Increase flue gas temperature

Last Answer : A]Increase thermal efficiency of boiler

A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. What is the thrust on the spacecraft? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds

Description : A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. ... ? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds 

Last Answer : ANSWER: W -- 2,000 NEWTONS

The heat exhaust of an automobile with an internal combustion engine represents approximately what percent of the energy of the original fuel? w) 10 % x) 50 % y) 35 % z) 5 %

Description : The heat exhaust of an automobile with an internal combustion engine represents approximately what percent of the energy of the original fuel? w) 10 % x) 50 % y) 35 % z) 5 % 

Last Answer : ANSWER: Y -- 35 % 

In a diesel engine the high temperature needed to ignite the fuel is achieved by (1) using heat from exhaust (2) the battery (3) compressing air in the cylinders (4) an electrical spark

Description : In a diesel engine the high temperature needed to ignite the fuel is achieved by (1) using heat from exhaust (2) the battery (3) compressing air in the cylinders (4) an electrical spark

Last Answer : compressing air in the cylinders

State the functions of fuel system and exhaust system of a diesel power station.

Description : State the functions of fuel system and exhaust system of a diesel power station.

Last Answer : Fuel system: It supplies fuel to engine for combustion purpose. It consists of Fuel Pump: - It supplies fuel to engine for combustion purpose. Strainer: - Are provided to remove suspended impurities and ... most of the noise. Chimney:- To exhaust gases in the atmosphere as high as possible. 

The waste heat energy could be used to produce ....... a) Cool air b) Hot air c) Exhaust gas d) All of the above

Description : The waste heat energy could be used to produce ....... a) Cool air b) Hot air c) Exhaust gas d) All of the above

Last Answer : Cool air

At what point do new vehicles usually need new air and fuel filters?

Description : At what point do new vehicles usually need new air and fuel filters?

Last Answer : answer:The air filter? Yes, no question. Instead of the factory disposable filter I would strongly suggest a modern high tech reusable filter. They provide more efficient airflow that results in improved economy and ... product in a near empty tank then fill up. I do this about three times a year.

The military hurts when fuel costs rise. Why haven't they yet R&D'ed hybrid drivetrains onto their vehicles?

Description : The military hurts when fuel costs rise. Why haven't they yet R&D'ed hybrid drivetrains onto their vehicles?

Last Answer : With combat equipment fuel economy isn't a consideration. These vehicles are heavy some of them measured in tens of tons in weight. Power ,speed, and reliability come first. Some of the non ... the fire departments need power and reliability because they are in the business of being in emergencies.

Why is New Jersey the only state (of the 50 & DC) where it is illegal for motorists to re-fuel their own vehicles?

Description : Why is New Jersey the only state (of the 50 & DC) where it is illegal for motorists to re-fuel their own vehicles?

Last Answer : You cant pump your own gas in oregon either. I heard the state of oregon did this just to create jobs.

In recent years, use of which fuel for transport vehicles is gaining popularity ? -SST 10th

Description : In recent years, use of which fuel for transport vehicles is gaining popularity ? -SST 10th

Last Answer : (i) In recent years, use of Compressed Natural Gas (CNG) for transport vehicles is gaining popularity. It is replacing liquid fuels like petrol and diesel. The liquid fuels obtained from ... transported via pipelines, the natural gas can be taken from source areas directly to their demand areas.

Which gas is used as fuel for vehicles ?

Description : Which gas is used as fuel for vehicles ?

Last Answer : CNG is used as vehicle fuel.

What are the most fuel efficient vehicles including both hybrid and/or conventional trucks and cars?

Description : What are the most fuel efficient vehicles including both hybrid and/or conventional trucks and cars?

Last Answer : Overall, smaller more compact cars will have better fuel efficiency than larger heavier SUV's. While the average mileage of a compact hybrid is close to 40MPG, average SUV MPG is closer to 20.

Best Fuel Efficient Vehicles?

Description : Best Fuel Efficient Vehicles?

Last Answer : Right now, the Nissan Leaf is one of the best fuel efficient vehicles you can find. The Nissan Leaf is four doors and comes in a variety colors. The shape of this car is also very unique. You will feel like ... with the Nissan Leaf. The car can get up to 92 mpg on the highway and 102 mpg on roads.

In which country alcohol is used as fuel for vehicles? A. USA B. Brazil C. Japan D. Germany

Description : In which country alcohol is used as fuel for vehicles? A. USA B. Brazil C. Japan D. Germany

Last Answer : ANSWER: B

In which country alcohol is used as fuel for vehicles? A. USA B. Brazil C. Japan D. Germany

Description : In which country alcohol is used as fuel for vehicles? A. USA B. Brazil C. Japan D. Germany

Last Answer : ANSWER: B

In which country alcohol is used as fuel for vehicles? A. USA B. Brazil C. Japan D. Germany

Description : In which country alcohol is used as fuel for vehicles? A. USA B. Brazil C. Japan D. Germany

Last Answer : ANSWER: B

Consider the following statements: 1. Carbyne is an allotrope of carbon. 2. Gasoline, used as a fuel in motor vehicles is a mixture of petrol and alcohol. 3. Petroleum is also known as 'liquid gold'. 4. The various components of crude oil are separated by fractional distillation. The correct statements are: (a) 1, 2 and 4 only (b) 1, 3 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only

Description : Consider the following statements: 1. Carbyne is an allotrope of carbon. 2. Gasoline, used as a fuel in motor vehicles is a mixture of petrol and alcohol. 3. Petroleum is also known as 'liquid gold'. 4. The various components of crude ... (b) 1, 3 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only

Last Answer : Ans:(b)

Which chemical compound may be used as a fuel for driving vehicles?

Description : Which chemical compound may be used as a fuel for driving vehicles?

Last Answer : Ethanol

Why is fuel used in airplanes different from those used in motor vehicles?

Description : Why is fuel used in airplanes different from those used in motor vehicles?

Last Answer : Aviation turbine fuels are used for powering jet and turbo-prop engine aircraft. Kerosene was used to fuel the first turbine engines. Kerosene-type fuel was chosen as having the best ... is only significant demand in very cold climates where its better cold weather performance is important.

Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons (b) permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles (c) use of non-polluting compressed natural gas (CNG) only as fuel by all buses and trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Description : Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and ... trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Last Answer : (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons

Which vehicles do not require the same level of battery power and do not achieve the same levels of fuel economy a) Mild Hybrid b) Full Hybrid c) Series Hybrid d) Parallel Hybrid

Description : Which vehicles do not require the same level of battery power and do not achieve the same levels of fuel economy a) Mild Hybrid b) Full Hybrid c) Series Hybrid d) Parallel Hybrid

Last Answer : a) Mild Hybrid

. A Local Authority is preparing cash Budget for its refuse disposal department. Which of the following items would not be included in the cash budget? (a) Capital cost of a new collection vehicle (b) Depreciation of the machinery (c) Operatives wages (d) Fuel for the collection Vehicles

Description : . A Local Authority is preparing cash Budget for its refuse disposal department. Which of the  following items would not be included in the cash budget? (a) Capital cost of a new collection vehicle (b) Depreciation of the machinery (c) Operatives wages (d) Fuel for the collection

Last Answer : (b) Depreciation of the machinery

Volvo Researchs Gasoline To Make Hydrogen For Fuel Cell?

Description : Volvo Researchs Gasoline To Make Hydrogen For Fuel Cell?

Last Answer : Volvo has a concept car, the C30, which is a plug-in electric vehicle. The range is 94 miles. Volvo is researching adding a fuel cell which would extend the range another 155 miles. To ... first glance. The process has an 85 percent efficiency rate and eliminates the need for hydrogen fuel stations.

Describe the following in brief a)Hydrogen economy b) Fuel cell c) Uses of Hydrogen peroxide

Description : Describe the following in brief a)Hydrogen economy b) Fuel cell c) Uses of Hydrogen peroxide

Last Answer : Ans a) The storage and transportation of liquid hydrogen as a fuel is hydrogen economy b)Those cells in which the energy of combustion is converted into electricity are called fuel cells e g-H2-O2 fuel cell c)In bleaching, as antiseptic ,as oxidizing and reducing agent.

The electrolytic solution used in a hydrogen-oxygen fuel cell is ____________ a) 75% KOH solution b) 25% KOH solution c) 75% NaOH solution d) 25% NaOH solution

Description : The electrolytic solution used in a hydrogen-oxygen fuel cell is ____________ a) 75% KOH solution b) 25% KOH solution c) 75% NaOH solution d) 25% NaOH solution

Last Answer : b) 25% KOH solution

Which of the following is not an example of a fuel cell? a) Hydrogen-oxygen cell b) Methyl-oxygen-alcohol cell c) Propane-oxygen cell d) Hexanone-oxygen cell

Description : Which of the following is not an example of a fuel cell? a) Hydrogen-oxygen cell b) Methyl-oxygen-alcohol cell c) Propane-oxygen cell d) Hexanone-oxygen cell

Last Answer : d) Hexanone-oxygen cell

Describe construction and working of hydrogen oxygen fuel cell.

Description : Describe construction and working of hydrogen oxygen fuel cell.

Last Answer : Construction:- 1. It consists essentially of an electrolytic solution such as 25% KOH or NaOH solution, & two inert porous electrodes (like porous carbon) containing suitable catalyst. ... & oxygen gases are bubbled through the anode & cathode compartment respectively.

In a fuel cell driven vehicle, the energy is obtained from the combustion of (A) Methane (B) Hydrogen (C) LPG (D) CNG

Description : In a fuel cell driven vehicle, the energy is obtained from the combustion of (A) Methane (B) Hydrogen (C) LPG (D) CNG

Last Answer : (B) Hydrogen

How many vehicles are being driven by someone using a cell phone during daylight hours?

Description : How many vehicles are being driven by someone using a cell phone during daylight hours?

Last Answer : Need answer

What is the challenge with electric vehicles? A] Vehicle durability B] Cell life C] Cost D] Both A and B

Description : What is the challenge with electric vehicles? A] Vehicle durability B] Cell life C] Cost D] Both A and B

Last Answer : D] Both A and B

What are the benefits of using hydrogen fuel?

Description : What are the benefits of using hydrogen fuel?

Last Answer : Hydrogen fuel can provide improved fuel economy and reduced greenhouse gas emissions compared to petrol or diesel fuel.