অটোমেশন সিস্টেম

• ০০। A common data base is one requisite for converting CAD and CAM to CIM. Another is that:
• ক) the system must make provision for new techniques.
• খ) there should be a common 3-D part description system.
• গ) the user must have access to both hardware and software
• ঘ) technical assistance must be provided to the user.
• ঙ) None of the above

• ০১। A common way to take x, y coordinates off a drawing is to use a
• ক) light pen
• খ) digitiser
• গ) Direct view storage tube (DVST)
• ঘ) Tablet
• ঙ) None of the above

• ০২। A continuous process is:
• ক) used only for simple tasks
• খ) one that never shuts down
• গ) self-contained in that raw materials enter the process and an identifiable products exits the process.
• ঘ) used only with analog controllers.
• ঙ) None of the above

• ০৩। A dc servo motor:
• ক) uses a tachometer for speed feedback
• খ) uses a variable dc voltage for speed control
• গ) can provide precise position control
• ঘ) All of the above
• ঙ) None of the above

• ০৪। A disadvantage of Numerical Control (NC) is:
• ক) the computer is not reliable
• খ) the tape and tape reader are not reliable
• গ) one operator is needed for each machine.
• ঘ) the machine tool can easily overheat
• ঙ) None of the above

• ০৫। A discrete parts process is:
• ক) the same as a continuous process except a different controller must be used
• খ) often encountered in manufacturing
• গ) normally a repetitive series of operations
• ঘ) (b) and (c)
• ঙ) None of the above

• ০৬। A display of a volume model that shows all of its edges is called a:
• ক) surface model
• খ) 3-D model
• গ) wire-frame
• ঘ) solid model
• ঙ) None of the above

• ০৭। A drum timer is a good example of:
• ক) an output actuator
• খ) an input sensor
• গ) a position sensor
• ঘ) a sequence controller
• ঙ) None of the above

• ০৮। A favourable reason for automation is to:
• ক) decrease throughput
• খ) raises assembly cost
• গ) perform difficult operations
• ঘ) increase number of operations
• ঙ) None of the above

• ০৯। A flexible manufacturing system may be:
• ক) an automated assembly line
• খ) expensive to alter
• গ) very difficult to change when new products are introduced
• ঘ) All of the above.
• ঙ) None of the above

• ১০। A flip-flop:
• ক) is a combinational logic device
• খ) is a sequential logic device
• গ) remembers what was previously stored in it
• ঘ) (a) and (c)
• ঙ) None of the above

• ১১। A Hall effect switch is usually used to:
• ক) , measure voltage
• খ) measure temperature
• গ) sense a vacuum
• ঘ) sense the presence of a magnetic object.
• ঙ) None of the above

• ১২। A LISP environment consists of a language, a programming environ¬ment, and:
• ক) random-access storage
• খ) a processor
• গ) a large address
• ঘ) a set of functions
• ঙ) None of the above

• ১৩। A microprocessor is:
• ক) controlled by a program
• খ) an integrated circuit
• গ) relatively inexpensive
• ঘ) All of the above
• ঙ) None of the above

• ১৪। A microprocessor:
• ক) is another name for a computer
• খ) is a CPU in integrated circuit form
• গ) executes a program of instructions
• ঘ) (a) and (c)
• ঙ) None of the above

• ১৫। A pick-and-place manipulator is:
• ক) the most flexible of all robots
• খ) an intelligent robot
• গ) capable of point-to-point operation
• ঘ) primarily used for large parts handling
• ঙ) None of the above

• ১৬। A process controller:
• ক) can interface to digital and analog I/O
• খ) is useful in a continuous process control application
• গ) can solve a PID process control equation easily
• ঘ) All of the above
• ঙ) None of the above

• ১৭। A program language:
• ক) defines the form of the instruction
• খ) is always machine dependent
• গ) is never machine dependent
• ঘ) All of the above
• ঙ) None of the above

• ১৮। A programmable controller:
• ক) can be used on more than one machine during its lifetime.
• খ) can be reprogrammed in the field
• গ) requires considerable training before it can be used
• ঘ) (a) and (b) above
• ঙ) None of the above

• ১৯। A programmable controller:
• ক) allows faster machine checkout
• খ) is easier to troubleshoot than standard relay logic
• গ) both (a) and (b)
• ঘ) All of the above
• ঙ) None of the above