ExamVeda
Login
Home

Internal Combustion Engines (I.C. Engines) MCQ Questions & Answers | Mechanical Engineering

Learn Internal Combustion Engines (I.C. Engines) MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Internal Combustion Engines (I.C. Engines): MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-3 section-3

Each section contains 100 MCQs on Internal Combustion Engines (I.C. Engines) .
21
In a petrol engine, the mixture has the lowest pressure at the
Discuss
Answer & Solution
Answer: Option B
Solution:
In a petrol engine, the mixture has the lowest pressure at the End of suction stroke
22
In case of gas turbines, the gaseous fuel consumption guarantees are based on
Discuss
Answer & Solution
Answer: Option B
Solution:
In case of gas turbines, the gaseous fuel consumption guarantees are based on Low heat value
23
Gaseous fuel guarantees are based on
Discuss
Answer & Solution
Answer: Option B
Solution:
Gaseous fuel guarantees are based on Low heat value of oil. Naturally occurring gas found in oil fields and coal fields. The quantities of the constituents vary but the principle component is methane. Other components include higher hydrocarbons which can be separated out as a condensate. Some gases also contain hydrogen sulphide.
24
The rating of a diesel engine, with increase in air inlet temperature, will
Discuss
Answer & Solution
Answer: Option B
Solution:
The rating of a diesel engine, with increase in air inlet temperature, will Decrease linearly
25
If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the
Discuss
Answer & Solution
Answer: Option D
Solution:
If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the Scavenging occurs. scavenging is the process of pushing exhausted gas-charge out of the cylinder and drawing in a fresh draught of air or fuel/air mixture for the next cycle.
26
By higher octane number of spark ignition fuel, it is meant that the fuel has
Discuss
Answer & Solution
Answer: Option D
Solution:
By higher octane number of spark ignition fuel, it is meant that the fuel has Longer ignition delay
27
In a four stroke cycle diesel engine, the exhaust valve
Discuss
Answer & Solution
Answer: Option A
Solution:
In a four stroke cycle diesel engine, the exhaust valve Opens at 30° before bottom dead centre and closes at 10° after top dead centre
28
A petrol engine, during suction stroke draws
Discuss
Answer & Solution
Answer: Option C
Solution:
A petrol engine, during suction stroke draws A mixture of petrol and air
29
In a diesel engine, the duration between the time of injection and ignition, is known as
Discuss
Answer & Solution
Answer: Option B
Solution:
In a diesel engine, the duration between the time of injection and ignition, is known as Delay period Delay period is defined as the time immediately following injection of the fuel during which the ignition process is being initiated and the pressure does not rise beyond the value it would have due to compression of air.
30
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.
Discuss
Answer & Solution
Answer: Option B
Solution:
The thermal efficiency of a petrol engine is less as compared to diesel engine.