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
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
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 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
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
In practice, the compression ratio of compression-ignition (CI) engine ranges from
A 15 to 25
B 5 to 10
C 40 to 55
D 60 to 70
The increase of efficiency of a compression ignition engine, as the load decreases, is due to
A Higher maximum temperature
B Qualitative governing
C Quantitative governing
D Hit and miss governing
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