The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is

A Same
B Less
C More
D More or less depending on power rating

Correct Answer: More

The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is More. Otto cycle is more efficient than Diesel cycle for a given compression ratio. For constant maximum pressure and heat input, the air standard efficiency of gas power cycle is in the order
Bissoy MCQ
#Mechanical Engineering #Internal Combustion Engines (I.C. Engines)

Related Questions

Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle
A Heat rejection is lower
B Expansion and compression are isentropic
C Combustion is at constant volume
D Maximum temperature is higher
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.
A Greater than
B Less than
C Equal to
D None of these
The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be
A More
B Less
C Same
D Data insufficient to predict
When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
A Zero
B $$\frac{1}{5}$$
C $$\frac{4}{5}$$
D 1
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency
A $$\frac{1}{4}$$
B Zero
C $$\frac{1}{5}$$
D 2
The efficiency of Diesel cycle approaches to Otto cycle efficiency when
A Cut-off is decreased
B Cut-off is constant
C Cut-off is increased
D Cut-off is zero
Air standard Otto cycle is more efficient than the diesel cycle for the same
A Heat addition & compression ratio
B Heat addition & pressure
C Compression ratio & pressure
D Cylinder dimension & rpm
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.
A Greater than
B Less than
C Equal to
D None of these
With increase in compression ratio, the efficiency of the otto engine
A Increases
B Decreases
C Remains constant
D Increases linearly
The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will
A Increase
B Decrease
C Be independent
D May increase or decrease depending on other factors

Next steps