1. Numerical control:

A. is a method for controlling the operation of a machine by means of a set of instructions
B. applies only to milling machines
C. is a method for producing an exact number of parts per hour
D. All of the above
E. None of the above

2. A flip-flop:

A. is a combinational logic device
B. is a sequential logic device
C. remembers what was previously stored in it
D. (a) and (c)
E. None of the above

3. A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called:

A. solid modeling
B. 2-D modeling
C. 3-D modeling
D. surface modeling
E. None of the above

4. The user communicates directly with the computer through its peripheral devices is known as

A. On-line processing
B. Remote-terminal processing
C. Batch mode processing
D. Intelligent terminal Processing
E. None of the above

5. A semi-continuous operation means:

A. the operation is continuous each shift but stops between shifts
B. coffee breaks are allowed for the operator
C. a computer is a required part of the machine
D. each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
E. None of the above