Questions on the subject of residual debt insurance

• Why should I insure my loan instalments against incapacitation and job loss?
• What does the residual debt insurance take over if I fall sick or become jobless?
• Who cannot be insured?
• Is a health checkup mandatory when submitting an application?
• I am a part-time worker. Am I still covered by the residual debt insurance against job loss?
• What is the amount of my insurance cover?
• Are there any restrictions on the benefits of the residual debt insurance?
• When does the insurance cover start?
• How is the premium paid?
• What is meant by incapacitation?