Questions regarding union membership or affiliation on application forms can lead to violations of which act?

The National Labor Relations Act (NLRA) is the correct answer because it specifically addresses the rights of employees related to labor organizations, including union membership and affiliation. The NLRA protects employees in their choice to join or not join unions and prohibits employers from discriminating against employees based on their union affiliations or activities. Therefore, asking about union membership on application forms could be seen as an infringement on an individual's rights under this act, potentially leading to unfair labor practices.

The other acts mentioned focus on different aspects of rights and regulations. The Civil Rights Act of 1964 primarily addresses discrimination based on race, color, religion, sex, or national origin, not specifically on union membership. The Fair Credit Reporting Act deals with how consumer credit information can be collected and used, which does not relate to union questions. The Federal Tort Claims Act pertains to lawsuits against the United States for wrongful acts, making it unrelated to employment and union affiliations. Hence, the context of union membership in relation to employment applications rightly falls under the National Labor Relations Act.