Question Analysis:
The question asks for the anchorage value of a standard hook of a reinforcement bar with a diameter of 16mm. To answer this question, we need to understand what anchorage value is and how it is determined.

Key Concepts:
- Anchorage value: The anchorage value of a hook represents the length of bar required to develop the full strength of reinforcement and prevent it from pulling out.
- Standard hook: A hook is a common method used to provide anchorage for reinforcement bars. The size of the hook is determined based on the diameter of the reinforcement bar.
- Diameter of reinforcement bar: The diameter of the reinforcement bar is an important parameter that affects the anchorage value.

Answer Explanation:
The anchorage value of a standard hook is based on the diameter of the reinforcement bar. In this case, the diameter of the bar is given as 16mm.

To determine the anchorage value of the hook, we can use the following formula:
Anchorage value = 4 times the diameter of the reinforcement bar

Calculation:
Given:
Diameter of reinforcement bar = 16mm

Anchorage value = 4 * Diameter of reinforcement bar
= 4 * 16mm
= 64mm

Therefore, the anchorage value of a standard hook for a reinforcement bar with a diameter of 16mm is 64mm.

Summary:
The anchorage value of a standard hook for a reinforcement bar with a diameter of 16mm is 64mm. This value is determined by multiplying the diameter of the reinforcement bar by 4.