Q.1
• a) 1.0
• b) 1.2
• c) 1.4
• d) 1.8
Q.2
##### The compression ratio (r) of dual cycle is equal to ________
• a) r = volume of the cylinder at the beginning of the compression/volume of the cylinder at the end of the compression
• b) r = volume of the cylinder at the end of the compression/ volume of the cylinder at the beginning of the compression
• c) r = clearance volume/ volume of the cylinder at the beginning of the compression
• d) r = volume of the cylinder at the end of the compression/clearance volume
Q.3
##### The cut-off ratio (ρ) of dual cycle is equal to ________
• a) Volume at which fuel supply cutoff to volume at which fuel supply start
• b) Volume at which fuel supply throughout the process to volume at which fuel supply cutoff
• c) Volume at which fuel supply cutoff to volume of fuel supply throughout the process
• d) Volume at which fuel supply start to volume at which fuel supply cutoff
Q.4
• a) 68%
• b) 63%
• c) 60%
• d) 65%
Q.5
• a) re = ρ×r
• b) re = ρ/r
• c) re = 1/ρr
• d) re = r/ρ
Q.6
##### What is the other name of dual cycle?
• a) Mixed cycle
• b) Otto cycle
• c) Diesel cycle
• d) Joule Cycle
Q.7
##### Dual cycle is combination of__________
• a) Stirling and diesel cycle
• b) Otto and diesel cycle
• c) Stirling and otto cycle
• d) Otto and Brayton cycle
Q.8
##### Dual cycle consist of __________
• a) Two constant pressure and two adiabatic process
• b) Two constant volume and two adiabatic process
• c) One constant pressure process, two constant volume process and two adiabatic process
• d) One constant pressure process, one constant volume process and two adiabatic process
Q.9
##### In a dual cycle heat rejection takes place ______
• a) At constant volume process
• b) At constant pressure process
• c) First at constant volume then at constant pressure process
• d) First at constant pressure then at constant volume process
Q.10
##### In a dual cycle heat addition takes place ________
• a) At constant volume process
• b) At constant pressure process
• c) First at constant volume then at constant pressure process
• d) First at constant pressure then at constant volume process
Q.11
##### Most high speed compression ignition operates on ________
• a) Diesel cycle
• b) Otto cycle
• c) Brayton cycle
• d) Dual cycle
Q.12
• a) 91%
• b) 90.8%
• c) 90.6%
• d) 90%
Q.13
• a) 10.5
• b) 21
• c) 11
• d) 10.7
Q.14
• a) 1.4
• b) 1.36
• c) 1.5
• d) 1.3