getQuestions() {
  return [
    {
      'text': 'Have you experience any heart problems:',
      'value': 'question1'
    },
    {
      'text': 'Do you have any reason to see a doctor or a consultant',
      'value': 'question2'
    },
  ];}

constructor(
  this.questions = ps.getQuestions();
)

<div *ngFor="let q of dquestions let i = index">
    <div class="col-middle-align">
        <popover-content #heardproblems [closeOnClickOutside]="true">
          <p>xxx</p>
        </popover-content>
     </div>
     ...
</div>