An engineer in government employ is to be rendering?

This question is asking about the type of service an engineer in government employ is rendering. The options are primary service, tertiary service, indirect service, and direct service.

Primary service refers to the production of raw materials such as farming or mining. Tertiary service refers to the provision of services such as healthcare or education. Direct service refers to providing services face-to-face with customers.

Indirect service, which is the correct option, refers to providing services that support the production of goods or the delivery of services. For example, an engineer in government employ may be providing technical support for the production of goods or services.

It's important to note that the types of services can be categorized differently depending on the context. To learn more about this, please read the relevant sections of the recommended textbooks.