Which of the following is not true about the preparations made for marine diesel propulsion engines before starting maneuvering? OA The main air starting valve should be opened to get ready for admission of starting air into the cylinders. OB. A heater is used to increase jacket cooling water temperature to eliminate the effects of cold starting the engine. OC Scavenge air valves should be opened to allow the scavenge air into the cylinders. OD. Turning gear should be operated to lubricate the cylinders if the engine is stopped for more than 30 minutes. OE. The engine should be tested for starting with the indicator cocks open to see if any abnormalities exist in-cylinder conditions.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
icon
Related questions
Question

It is a multiple choice marine diesel engine question, please specify the correct option.

Which of the following is not true about the preparations made for marine diesel propulsion engines before starting
maneuvering?
A. The main air starting valve should be opened to get ready for admission of starting air into the cylinders.
OB. A heater is used to increase jacket cooling water temperature to eliminate the effects of cold starting the engine.
OC Scavenge air valves should be opened to allow the scavenge air into the cylinders.
OD. Turning gear should be operated to lubricate the cylinders if the engine is stopped for more than 30 minutes.
E. The engine should be tested for starting with the indicator cocks open to see if any abnormalities exist in-cylinder conditions.
Transcribed Image Text:Which of the following is not true about the preparations made for marine diesel propulsion engines before starting maneuvering? A. The main air starting valve should be opened to get ready for admission of starting air into the cylinders. OB. A heater is used to increase jacket cooling water temperature to eliminate the effects of cold starting the engine. OC Scavenge air valves should be opened to allow the scavenge air into the cylinders. OD. Turning gear should be operated to lubricate the cylinders if the engine is stopped for more than 30 minutes. E. The engine should be tested for starting with the indicator cocks open to see if any abnormalities exist in-cylinder conditions.
Which of the following statement is true about Selective Catalytic Reduction (SCR) systems?
A. SCR units are capable of reducing the sulphur emissions in the exhaust gas effectively.
B. SCR reactors should be placed after the turbocharger to achieve the optimum operating temperature.
OC. SCR bypass valve is used to increase the exhaust gas temperature by reducing the mass of air through the cylinders for low load operations.
OD. Exhaust gas is catalyzed in the SCR reactor and then the urea solution is injected into the exhaust gas.
OE. The system requires seawater injection to exhaust gas for the open-loop SCR configuration.
Secimi fifirla
Transcribed Image Text:Which of the following statement is true about Selective Catalytic Reduction (SCR) systems? A. SCR units are capable of reducing the sulphur emissions in the exhaust gas effectively. B. SCR reactors should be placed after the turbocharger to achieve the optimum operating temperature. OC. SCR bypass valve is used to increase the exhaust gas temperature by reducing the mass of air through the cylinders for low load operations. OD. Exhaust gas is catalyzed in the SCR reactor and then the urea solution is injected into the exhaust gas. OE. The system requires seawater injection to exhaust gas for the open-loop SCR configuration. Secimi fifirla
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Refrigeration and Air Conditioning
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY