1) Mechatronics is a blend of: a) Mechatronics is a blend of mechanical engineering, electrical engineering, computer control and information technology b) mechanical engineering, electrical engineering c) Design process to create more functional products. 2) Where The PLC’s Are Not Used? a) Machine tools b) Automated assembly equipment c) Moulding and extrusion machines etc. d) blender 3) Stepper motor. Which of these options is false? a) It can only rotate in one direction. b) It can move in precise angular increments. c) It can be controlled with digital circuits. d) It can sustain a holding torque at zero speed. 4) In the block diagram of the CNC machine, data processing and control loop are a part of ____ a) speed and position sensor b) feedback system c) machine control unit d) input device 5) An electronic component used by computers to do its work is... a) Microcontrollers b) Microprocessors c) Keyboard d) Resistors 6) In compact systems, we can use a) microcontrollers b) computers c) microprocessors d) PLC 7) Which type of system uses ‘oil under pressure’ means for power transmission? a) Fluid power system b) Hydraulic system c) Pneumatic system d) Stepper motors 8) Hydraulic systems are slower in operation. a) False b) True 9) Which part of the Pneumatic system stores the compressed air? a) Air dryer b) Air compressor c) Air receiver tank d) Air lubricator 10) AC motors do not have brushes. a) True b) False 11) What is the frequency of the supplied alternating current in Brazil? a) 50Hz b) 60Hz c) 60kHz d) 30Hz 12) Who invented alternating current? a) Stephen Hawking b) Thomas Edison c) Nicola Tesla d) Stephen Hawking e) Sheldon Cooper 13) What is the SI unit of velocity? a) m/s² b) km/h c) km/h² d) m/s e) RPM 14) What is the standard colour of ac supply ground wire in Brazil? a) Red b) Green c) Black d) Blue 15) Google maps do not use artificial intelligence. a) True b) False

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