Can they ask that? Illegal interview topics.

Topic: Height or Weight

10.1% of readers had been asked about this
felt discriminated against on this topic

Topic is:  Legal (with exceptions)

Details: While it is not specifically illegal to discriminate against a person based on height and weight, it is illegal to do so if the same restrictions are not applied to all employees in the same way or are used to hide another type of discrimination. 

For example, the cases of Gerdom v. Continental Airlines Inc. and Independent Union of Flight Attendants v. Pan American World Airways, Inc.  established that having different weight requirements for Males and Females was in violation of Title VII of the Civil Rights Act of 1964.