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MCQs

Total Questions : 10
Question 1. Which of the following is correct about Widget class of GWT?
  1.    The class Widget is the base class for the majority of user-interface objects
  2.    Widget adds support for receiving events from the browser and being added directly to panels
  3.    Both of the above
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both of the above




Question 2. What would you use to tweak the look-and-feel of a GWT UI?
  1.    Stylesheets
  2.    custom Swing PLAF
  3.    the GWT Styles API
  4.    style bundles (style.properties)
 Discuss Question
Answer: Option A. -> Stylesheets




Question 3. In order to develop a new service you should extend which interface?
  1.    RemoteService
  2.    RemoteServiceServlet
  3.    ServiceAsync
  4.    RemoteProcedureService
 Discuss Question
Answer: Option A. -> RemoteService




Question 4. Power brushing, belt sanding comes under
  1.    chemical cleaning
  2.    ultrasonic cleaning
  3.    mechanical cleaning
  4.    All of the above
 Discuss Question
Answer: Option C. -> mechanical cleaning




Question 5. Hot dipping is a process of
  1.    galvanizing
  2.    sheradizing
  3.    anodising
  4.    calorising
 Discuss Question
Answer: Option A. -> galvanizing




Question 6. Purpose of coating metal surface is to
  1.    improve its appearance
  2.    corrosion resistant
  3.    make a base for painting
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above




Question 7. In order to produce efficient code, when a collection class is going to be serialized what must you be sure to do?
  1.    declare the method or field as final
  2.    declare the field as transient
  3.    mark the field with the volatile keyword
  4.    use a special JavaDoc annotation
 Discuss Question
Answer: Option D. -> use a special JavaDoc annotation




Question 8. For electroplating process, power supply is
  1.    A.C
  2.    D.C
  3.    A.C or D.C
  4.    Solar energy
 Discuss Question
Answer: Option B. -> D.C




Question 9. Other methods of galvanizing are
  1.    sheradizing
  2.    chrome plating
  3.    calorising
  4.    anodising
 Discuss Question
Answer: Option A. -> sheradizing




Question 10. The AsyncCallback has two methods, they are:
  1.    onSuccess(Object) and onFailure(Throwable)
  2.    onSend(String) and onReceive(String)
  3.    callbackLoaded() and callbackUnloaded()
  4.    sync(boolean) and async(boolean)
 Discuss Question
Answer: Option A. -> onSuccess(Object) and onFailure(Throwable)




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