How to get properties of CustomizationRBTQuestion object via CustomizationRBT object

Hi I need to get properties of CustomizationRBTQuestion object. I am using below VBScript code

Set tdc = QCUtil.QCConnection

Set objCustomization = tdc.Customization

Set qcRBT = objCustomization.RBT

now based on the comments under CustomizationRBTQuestion object, which says "Get a CustomizationRBTQuestion object from methods and properties of the CustomizationRBT Object." I am using the below code without any success

Set RBTQues = qcRBT.CustomizationRBTQuestion  

and I tried  Set RBTQues = objCustomization.CustomizationRBTQuestion  as well

Please let me know how to get properties of CustomizationRBTQuestion object.

Any kind of guidance would be appreciated.