The various type of risks are:

Schedule Risk :

Schedule related risks refers to time related risks or project delivery related planning risks. The wrong schedule affects the project development and delivery.

Time is not estimated perfectly
Improper resource allocation
Tracking of resources like system, skill, staff etc
Frequent project scope expansion
Failure in function identification and its’ completion
Budget Risk :

Budget related risks refers to the monetary risks mainly it occurs due to budget overruns.

Wrong/Improper budget estimation
Unexpected Project Scope expansion
Mismanagement in budget handling
Cost overruns
Improper tracking of Budget
Operational Risks :

Operational risk refers to the procedural risks means these are the risks which happen in day-to-day operational activities during project development due to improper process implementation or some external operational risks.

Technical Risks :

Technical risks refers to the functional risk or performance risk which means this technical risk mainly associated with functionality of product or performance part of the software product.

Programmatic Risks :

Programmatic risks refers to the external risk or other unavoidable risks. These are the external risks which are unavoidable in nature. These risks come from outside and it is out of control of programs.