The recommended unit loads (pressures) for the main bearing of a Diesel engine are higher than those of a comparable power gasoline engine. The reason may be: a. Diesel engines have higher compression ratios than petrol engines b. Diesel fuel viscosity is higher than gasoline fuel viscosity None of the above d. Diesel fuel has high Octane Number than Gasoline fuel Diesel engines run at higher RPM than Gasoline engines

The recommended unit loads (pressures) for the main bearing of a Diesel engine are higher than those of a comparable power gasoline engine. The reason may be: a. Diesel engines have higher compression ratios than petrol engines b. Diesel fuel viscosity is higher than gasoline fuel viscosity None of the above d. Diesel fuel has high Octane Number than Gasoline fuel Diesel engines run at higher RPM than Gasoline engines

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter4: Automotive Systems

Section: Chapter Questions

Problem 6RQ: Which of the following is not one of the strokes of a four-cycle engine? Compression Exhaust Intake...

See similar textbooks

Similar questions

Which of the following is not one of the strokes of a four-cycle engine? Compression Exhaust Intake Ignition
C- Fill the blank 1- Internal combustion engines classified according to air intake into the cylinder to and-- 2- Typical compression ratio for modern gasoline engine lie between 3- There are a number of gasoline additives that are used to raise the octane number such as 4- Higher compression ratio in SI engine lead to 5- The thermal efficiency of CI engine is than of SI engine. 6- Fuel with octane number of 78 indicate 78%- -and 22%- 7- Anti-Knock quality improves with - no. of carbon atoms. 8- Higher compression ratio in SI engine lead to 9- Maximum power overtaking a vehicle or climbing up a hill (extra load) this requires a mixture.
Which of the following is not a true statement about diesel engines?a. The operation and main components of a diesel engine are comparable to those of a gasoline engine. Diesel and gasoline engines are available as four- stroke combustion cycle engines. Diesel engines rely on glow plugs instead of spark plugs to initiate ignition. The compression ratio of diesel engines is typically three times that of a gasoline engine.
Which of the following best approximates pressure variations in an internal combustion engine? Diesel Cycle O Otto Cycle O Dual Cycle
Explain the working principle of a 4-stroke diesel engine with neat diagram
Compare 4-stroke and 2-stroke cycle engines
Which of the following are complexities that are ignored when assuming air-standard for an internal-combustion engine? Select all that apply. Variation of specific heat values with a change in temperature Changes in pressure during the power stroke (expansion) Changes in chemical composition due to combustion O Heat transfer through the piston or cylinder walls
2- What is normal air flow rate? How is air flow pressure measured? 4- Which engine produces the most torque (diesel or petrol)? why? 5- Mention the air fuel ratio required by the engine during (a) Starting time zero load (b) Normal running half load (C)full load 6- Types of lubrication in an IC engine?
These are Diesel cycle characteristics: * Low thermal efficiency Considered as not high speed engine System is light in weight Mixture of air fuel is entered in suction stroke Low compression ratio It is called as constant pressure cycle Fuel injector is used for igniting the charge Engine starting is easy in cold weather The working fuel is used as Petrol Only air is entering during suction stroke
What are the major pollutants from the exhaust of SI and CI engines.
Discuss the main functions of the lubricating system of an engine
13. A four-cycle six cylinder diesel engine of 4 % in bore and 6-in stroke running at 1200 rpm, has 9 percent CO, present in the exhaust gases. The fuel consumption is 28 lb/hr. Assuming that 13.7 percent CO2 indicates an air-fuel ratio of 15 Ib of air to 1 ib of fuel, calculate the volumetric efficiency of the engine. The intake air temperature is 60 deg. F and the barometric pressure is 29.80 in of Hg. A. 83% B. 81% C. 87% D. 92% 50