diff -r 88a01948450d -r d33698326409 loading_data_from_files/questions.rst
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+Objective Questions
+-------------------
+
+.. A mininum of 8 questions here. 
+
+1. ``loadtxt`` can read data only from a file with one column
+   only. True or False?
+
+   Answer: False
+
+#. To read a file with multiple columns, into separate simple
+   sequences, ``loadtxt`` is given the additional argument ______?
+
+   Answer: ``unpack=True``
+
+#. We have a file with two columns of data separated by one of the
+   following characters. Which of them doesn't require the delimiter
+   argument to be specified, when using ``loadtxt``. 
+
+   a. ;
+   #. , 
+   #. :
+   #. [space] 
+   
+   Answer: [space]
+   
+#. Given a file ``data.txt`` with three columns of data separated by
+   spaces, read it into one complex sequence. 
+
+   Answer: ``x = loadtxt("data.txt")``
+
+#. Given a file ``data.txt`` with three columns of data separated by
+   spaces, read it into 3 separate simple sequences. 
+
+   Answer: ``x = loadtxt("data.txt", unpack=True)``
+
+#. Given a file ``data.txt`` with three columns of data separated by
+   ``:``, read it into one complex sequence. 
+
+   Answer: ``x = loadtxt("data.txt", delimiter=":")``
+
+#. Given a file ``data.txt`` with three columns of data separated by
+   ":", read it into 3 separate simple sequences. 
+
+   Answer: ``x = loadtxt("data.txt", unpack=True, delimiter=":")``
+
+#. To use the loadtxt command, each row should have the same number of
+   values, T or F ?
+
+   Answer: True
+
+Larger Questions
+----------------
+
+.. A minimum of 2 questions here. 
+
+1. What will happen if one of the cells is empty?
+
+#. Given a file with 3 columns of data but two different delimiters,
+   what do you think will happen?
+
+#. Read a column with text? 
+
+#. An input file contains 5 columns of data. Use only the second and fourth
+   columns of data and load into two different variables.
+   [hint: read the documentation, use the argument ``usecols``]
+.. #[bhanu: solutions are not seen to have been included.]