Description : Which of the following statements is a requirement of Coast Guard Regulations (46 CFR) concerning emergency diesel generator engines? A. The fuel must have a flash point not less than 75°F. B. ... to each side of the vertical. D. The starting battery must produce 12 consecutive cranking cycles.
Last Answer : Answer: C
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
Description : Describe air fuel- ratio requirements for diesel engines at no load to full load.
Last Answer : Irrespective of load at any given speed, an approximately constant supply of air enters the cylinder. With change in load, the quantity of fuel injected is changed varying the air fuel ratio. The ... engine always designed to operate with an excess air of 15 to 40% depending upon the application
Description : How much fuel does a diesel truck generally take?
Last Answer : That depends upon what type of truck you mean. An over the road tractor trailer has two 'side saddle fuel tanks' which often carry 240 gallons between them. A diesel pickup usually has a capacity of no more than 32 US Gallons.
Description : Are diesel engines more efficient? If so why?
Last Answer : answer:From Wikipedia : Diesel engines often achieve greater fuel efficiency than petrol (gasoline) engines. Diesel engines have energy efficiency of 45% and petrol engines of 30%.[3] That is one of ... high as 25:1. The higher compression ratio of the diesel engine leads to better efficiency.
Description : Are diesel engines better than gas engines?
Last Answer : Are diesel engines better than gas engines is sort of a yes and no question. Diesel engines generally get better fuel mileage and last longer overall. But, gas engines are easier to maintain on your own and gasoline is much more readily available than diesel fuel is on the whole.
Description : Are Mazda cars available in diesel or gas engines?
Last Answer : Mazda cars require gas for their engines, not diesel. They also have hybrid vehicles, which run on both electricity and gas, but not diesel.
Description : Supercharging is essential in A. aircraft engines B. petrol engines C. gas turbines D. diesel engines
Last Answer : ANSWER : A
Description : With EFI of diesel engines a) sharp start and stop is not possible b) very high injection pressure can be obtained c) sudden cylinder cut-off is impossible d) diagnostic properties are poor
Last Answer : Answer: b Explanation: Generally, with EFI of diesel engines very high injection pressure can be obtained.
Description : The probability of knocking in diesel engines is increased by a. High self-ignition temperature. b. Low volatility. c. High viscosity. d. all of the above
Last Answer : ANSWER d. all of the above
Description : For the best results of efficient combustion, high speed diesel engines need an approximate cetane number of a. 100 b. 50 c. 10 d. 5
Last Answer : ANSWER b. 50
Description : The probability of knocking in diesel engines is increased by a. High self-ignition temperature. b. Low volatility. c. High viscosity. d. All of the above
Description : Most high-speed compression engines operate on a. diesel cycle b. Otto cycle c. dual cycle d. Carnot cycle
Last Answer : ANSWER c. dual cycle
Description : Scavenging air in diesel engine means a. air used for combustion under pressure b. forced air for cooling the cylinder c. burnt air containing products of combustion d. air used for forcing burnt gases out of the engines cylinder during the exhaust stroke
Last Answer : ANSWER d. air used for forcing burnt gases out of the engines cylinder during the exhaust stroke
Description : For the same capacity engines, the compression ratio of diesel engine a. is lower than the compression ratio of SI engine b. is higher than the compression ratio of SI engine c. is same as the compression ratio of SI engine d. cannot say
Last Answer : ANSWER b. is higher than the compression ratio of SI engine
Description : What type of electric motor is commonly used to start small auxiliary diesel engines? A. synchronous B. series C. shunt D. cage
Last Answer : Answer: B
Description : Diesel engines are best suited for heavy vehicles, such as lorries, trucks, railway engines and ships. Why?
Last Answer : As they have more power and efficiency of diesel engine is more.
Description : The piston pin bearings in heavy-duty diesel engines are (a) needle roller bearings (b) tapered roller bearings (c) spherical roller bearings (d) cylindrical roller bearings
Last Answer : (a) needle roller bearings
Description : Cocentric springs are used in (A) Heavy duty diesel engines (B) aircraft engines (C) railroad suspensions (D) all of the above
Last Answer : (D) all of the above
Description : Which Has More Efficiency: Diesel Engine Or Petrol Engines?
Last Answer : Off course Diesel engine has the better efficiency out of two.
Description : The production of irrigation pumps and diesel engines started during……. a)1950s b)1930s c)1940s d)2000s
Last Answer : 1930S
Description : Which of the following engines was introduced by a German engineer, Nickolas Otto? a. Gasoline engine b. Diesel engine c. Gas turbine d. Thermal engine
Last Answer : Gasoline engine
Description : Which of the following engines is the most efficient? a. Gas turbine b. Diesel engine c. Carnot engine d. Gasoline engine
Last Answer : Carnot engine
Description : Which of the following best describes both Stirling and Ericson engines? a. Internal combustion engine b. External combustion engine c. Diesel cycle d. Rankine cycle
Last Answer : External combustion engine
Description : Gasoline and Diesel Engines are best described by the _________. a. Otto Cycle b. Burnign Cycle c. Shikki Cycle d. Shapa R’ Elli Cycle
Last Answer : Otto Cycle
Description : The compression ratio for Diesel engines is A. 3 to 6 B. 5 to 8 C. 15 to 20 D. 20 to 30
Description : Submarines move under water. They have engines that run on (1) Petrol and oxygen (2) Diesel (3) Batteries (4) Steam
Last Answer : Diesel
Description : List changes made by automobile manufactures in achieving BS VI norms in diesel engines.
Last Answer : Following are Changes in automobile manufacturers in achieving BS6 norms of diesel engines 1. Reduction in HC emission by 45% 2. Reduction in NOX emission by 70% 3. Reduction in ... Driving Emission introduced in vehicles 10. Fumigation 11. Catalytic converter monitoring 12. Misfire detection
Description : State the different types of engines in diesel power plant.
Last Answer : Types of engines in diesel power plant: 1) Two Stroke Diesel Engine 2) Four Stroke Diesel Engine
Last Answer : Overload capacity of diesel engines is usually restricted to 2 percent.
Description : Any good search engines out there? Google? You are dead to me! You no longer help me find what I want; you find what you think I want or what you think I should want. Any suggestions folks?
Last Answer : Seri on my iPhone is doing a great job. :-)
Description : Motoring test is conducted on IC engines to determine A. brake power B. indicated power C. friction power D. fuel consumption at full load
Last Answer : ANSWER : C
Description : For C.I. engines fuel most preferred are a) aromatics b) paraffins c) olefins d) napthenes
Last Answer : Answer: b Explanation: For C.I. engines fuel most preferred are paraffins and for S.I. engines fuel most preferred are aromatics.
Description : For S.I. engines fuel most preferred are a) aromatics b) paraffins c) olefins d) napthenes
Last Answer : Answer: a Explanation: For S.I. engines fuel most preferred are aromatics while for C.I. engines fuel most preferred are paraffins.
Description : Which of the following statement is not correct with respect to alcohols as alternate fuel in IC engines a) anti-knock characteristics of alcohol is poor b) alcohol contains about half the heat ... /litre c) alcohol does not vaporize as easily as gasoline d) alcohols are corrosive in nature
Last Answer : Answer: a Explanation: Anti-knock characteristics of alcohol is good.
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
Description : All heat engines utilize a. lower heating value of oil b. higher heating value of oil c. net calorific value of oil d. calorific value of fuel
Last Answer : ANSWER a. lower heating value of oil
Description : The air fuel ratio in petrol engines is controlled by a. valve opening / closing b. governing c. carburetion d. scavenging
Last Answer : ANSWER c. carburetion
Description : Why iso-octane is chosen as reference fuel for S.I. engines and allotted 100 value for its octane number ?
Last Answer : Iso-octane permits highest compression without causing knocking.
Last Answer : Iso-octane permits highest compression without causing knocking
Description : Hydrogen can be (A) Used in I.C. engines as fuel (B) Liquefied & stored under cryogenic conditions (C) Produced by electrolysis of water (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Differentiate air fuel ratio between carburetted engine and electronic fuel injection engines control system.
Last Answer : Sr. No. Carburetted engine Electronic Fuel Injection (EFI) engine 1 Fuel atomization depends upon velocity of air in the venturi. Atomization of fuel is independent of cranking ... occurs in carbureted engine. Equal quantity of fuel is supplied to port for each cylinder
Description : State the drawbacks of carbureted (SI) engines on the basis of fuel distribution, emission, power output and fuel consumption.
Last Answer : Drawbacks of carburetted S.I. engine: 1) Fuel distribution- Mal-distribution of charge. 2) Emission- More emissin 3) Power output- Less 4) Fuel consumption - More
Description : Give advantages and disadvantages of LPG as a fuel for automobile engines.
Last Answer : Advantages of LPG 1. It is cheaper than petrol 2. It is highly detonation resistant and does not pre-ignite easily. 3. It gives better manifold distribution and mixes easily with air. 4. Residue ... 13. It is safe only if proper periodic maintenance of the gas system is done by trained person.
Description : Considering buying a 1/2 ton truck, gas or diesel?
Last Answer : answer:There is a reason 90% of OTR trucks use diesel, better fuel economy and they perform better under load than gasoline engines. Biggest drawbacks of diesel are it generally burns less cleanly than gas, ... turn into a gooey gel and not flow readily. They are also more expensive to work on.
Description : More Power with a Diesel Truck?
Last Answer : A diesel truck is the best way to handle heavy loads and towingneeds on any job site. The design of a diesel engine provides morepower to any truck or large vehicle. Most of the heavy ... traditional gasengines. An efficient engine is generally a more powerful one, nomatter what it is put i
Description : What are the advantages of a diesel truck over a gas powered truck?
Last Answer : In short diesel trucks provide better hauling capacity while gas powered trucks are better for acceleration and speed. There is some more information on the differences here: http://www.ehow.com/facts_5529606_diesel-vs-gas-truck-engines.html
Description : What is best mileage for a three quarter ton diesel pickup truck?
Last Answer : The best mileage for a three quater ton diesel pickup truck is 15 mph. It will only change if you going on a stopping trip and you don't use a highway on a long trip.
Description : What are the benefits of buying a diesel pickup truck?
Last Answer : The best things about a diesel pickup truck are that you will not have to fill up the tank as ofter if you are driving a lot. Another advantage is that they have glow plugs and if you ever have a problem with starting you know where to check first.
Description : What should I know before buying a diesel pickup truck?
Last Answer : Before buying a diesel truck, you should know the MPG for city and highway driving, the horsepower of the engine, and the towing capacity, as well as what type of Warranty comes with the vehicle.