a) Limited availability of commercial microwave reactors.
b) Limited control over the heating rate and temperature.
c) High cost of specialized equipment.
d) None of the above.
Answer: b) Limited control over the heating rate and temperature.
a) Reduced processing time compared to other methods.
b) Increased effectiveness against bacterial and viral pathogens.
c) Lower equipment cost compared to other methods.
d) None of the above.
Answer: b) Increased effectiveness against bacterial and viral pathogens.
a) It operates at 5 GHz.
b) It has a shorter range compared to other frequency bands.
c) It is not affected by interference from other devices.
d) None of the above.
Answer: a) It operates at 5 GHz.
a) Limited penetration depth of microwaves in materials.
b) High equipment cost.
c) Limited range of temperature control.
d) None of the above.
Answer: a) Limited penetration depth of microwaves in materials.
a) It is a slow and time-consuming process.
b) It requires the use of toxic solvents.
c) It offers higher purity and yield compared to conventional synthesis methods.
d) None of the above.
Answer: c) It offers higher purity and yield compared to conventional synthesis methods.
Which of the following is a characteristic of microwave-assisted polymer synthesis. Read More »
a) Improved texture and flavor of the food.
b) Reduced loss of nutrients compared to conventional thawing methods.
c) Increased safety due to reduced bacterial growth.
d) None of the above.
Answer: b) Reduced loss of nutrients compared to conventional thawing methods.
a) They require the use of expensive and specialized equipment.
b) They are limited to specific types of chemical reactions.
c) They offer faster reaction times compared to conventional heating methods.
d) None of the above.
Answer: c) They offer faster reaction times compared to conventional heating methods.
Which of the following is a characteristic of microwave-assisted chemical reactions. Read More »
a) Microwave leakage.
b) Electrical shock.
c) Fire.
d) None of the above.
Answer: a) Microwave leakage.
a) It operates at frequencies higher than 20 GHz.
b) It has a longer wavelength compared to terrestrial communication.
c) It is not affected by atmospheric conditions.
d) None of the above.
Answer: a) It operates at frequencies higher than 20 GHz.
a) High cost of equipment.
b) Limited availability of trained personnel.
c) Limited resolution compared to other imaging techniques.
d) None of the above.
Answer: c) Limited resolution compared to other imaging techniques.
