Electronics Engineering Coaching Materials: Section 4 Module 5

This is the Section 4 Module 5 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and the Internet.

Electronics Coaching Materials: Section 4 Module 5

This is the Section 4 Module 5 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 5

WELDING

1. Most efficient soldering temperature.

500˚F

2. What should be done to the removable tip of a solder gun when it is pitted

FILE THE TIP TO SMOOTH AND RETIN

3. Solder fracture occurs when the

SOLDER IS MOVED WHILE BEING COOLED

4. In removing solder using solder wick, wick is placed where?

BETWEEN THE JOINTS AND IRON

5. An electric arc welding that uses arc between the..

FCAW

6. High frequency resistance welding (HFRW) uses high frequency up to ___.

450 kHz

7. In SMAW, the use of less spatter but medium penetration

DC STRAIGHT OR DCSP

8….1/32 inch long….. to

TO PREVENT BURNING OF INSULATION

9. The bend of full-clinched iron and half-clinched iron

90 AND 45 DEGREES

10. To remove a solder with a twick where should the twick be in relation to the joint and iron

BETWEEN JOINT AND IRON

11. One of the most commonly used type of welding is manual metal arc welding (MMA) or ???. It is also known as

SHIELDED METAL ARC WELDING (SMAW)

12. In welding, . . . to protect the weld from contamination

MIG/GMAW

13. In automatic welding, release is followed by _____ interval.

STANDBY

14. Supply in SMAW deep weld penetration?

DC REVERCED (DC+ OR DCRP)

15. During arc welding process, current is in the range of

50 A – 450 A

16. In AWS (American welding S******), for ES60xx, 60 means a tensile strength of _______

60 000 psi

17. A part of the welding process interval when there is a flow f current

HEAT SUB-INTERVAL

18. In Ultrasonic welding, frequency is in the range of_______

10 KHZ – 75K HZ

19. High Frequency Resistance Welding (HFRW), uses high frequency current up to

450 Khz

20. After weld interval, ____ interval in which electrodes are placed in metal surface

HOLD

21. Steering the leads during desoldering prevents _____

SWEAT JOINT

22. When a TO or DIP is to be replaced, the termination applied is

THROUGH-THE BOARD

23. Type of PCB that is most complex to build and most difficult to repair.

LAYER BUILD-UP

ROBOTICS

1. What is a robot?

A machine capable of carrying out a complex series of actions automatically, especially one programmable by a computer. A robot is a mechanical or virtual artificial agent, usually an electro-mechanical machine that is guided by a computer program or electronic circuitry. Useful tool for manufacturing.

2. The science and technology concerning robots, its design, . . . and applications.

ROBOTICS

3. Introduction to robotics, industry

LABOR SAVINGS, IMPROVED QUALITY PRODUCTS, REDUCE MATERIAL COSTS

4. Large size man ..aphend robot

SCARA… IN Z AXIS..

5. Moving in one direction rate motor has how many precession

2

6. A solid mass has how many degrees of freedom

6

7. DEA pragma robots

3P, 2R, 3P2R

8. Low technology robots have

2 TO 4 AXES

9. The ability of a robot to position its end effectors at programmed location in space

ACCURACY

10. In robotics, __ has a limit but no trajectory

FIXEDSTOP ALSO KNOWN AS NONSERVO ROBOT, OR OPEN ROBOT

11. Keyword: “two fingers” . . . The grasping hand of a robot, which manipulates objects and tools to fulfill a given task

GRIPPER

12. Robot hand; robot arm

END EFFECTOR; MANIPULATOR

13. Muscle of robot

ACTUATOR

14. An actuator which resembles a biological muscle.

AIR MUSCLE

15. A robot with rotary joint just like a human arm

ANTHROPOMORPHIC ROBOT

16. A robot used to assist doctor/nurses

MEDICAL ROBOT

17. Total environment of robot, a robot must performs its task

WORK CELL

18. In, robotics measuring quantities(resistance, voltage, rotation) also use in pneumatic, hydraulic and electric actuator

ANALOG SYSTEM

19. Harmonic drive in robot transmission system has _____

HIGH RELIABILITY

20. In robot, a program that uses numeric symbol

NUMERICAL METHOD

21. In robot, an actuator that rotates few degrees when a signal is send by the controller

STEPPER MOTOR

22. In robotics, opposition … electro values, as done in path planning

INVERSE KINEMATICS

23. Calculation of the forces applied by the actuator to know the proper end-effector acceleration

INVERSE DYNAMICS

24. Used to calculate the end effectors……

DIRECT KINEMATICS

25. Developing robot programs partially or completely without requiring the use of the robot itself.

OFF-LINE PROGRAMMING

26. Harmonic drive in robot.

WAVE GENERATOR, FLEXSPLINE, CIRCULAR SPLINE

27. What is the most popular output type of driver used in robot transmission system?

TOTEM POLE DRIVER

28. Area where human is trapped in the work envelope without having an avenue of escape on it

PINCHPOINT

29. Desire characteristic of a robot

GOOD LOAD CAPACITY, . . . . . .

30. Use to be able to walk the robot . . . .

DYNAMIC BALANCE

31. In low technology robot; which drive is easiest to control?

hydraulic

pneumatic

ELECTRIC

32. Process of transferring mechanical.. from one place to another. Has a nominal constant gear ratio.

CHAIN DRIVE

33. In robotics, it refers to the promising and experimental form of actuator.

ELECTRIC NANOTUBE

34. What is/are the basic parts of a robot?

i. Commulator

ii. End Effector

iii. Manipulator

iv. Power Source

i-iv

35. In robot it is use to grasp, hold, and transport also called robot “hand”.

GRIPPER

36. In robot, part of joint-arm connected to the shoulder

UPPER ARM

37. Chain is composed of, _____ (its bone), _____ (its muscle) and ____ for more degrees of freedom

LINKS, ACTUATOR, JOINTS

38. Used as gripper to grasp and handle tools

END-EFFECTOR

39. Robot which motions are controlled by driving the axis or degree of freedom against mechanical limit stop.

BANG BANG ROBOT

40. Type of robot with two moves or three degrees of freedom to transfer item from source to destination by point-to-point contact

BANG-BANG ROBOT

41. A robot that has only two moves or three degrees of freedom that picks a material from source to destination or from point-to-point.

PICK AND PLACE ROBOT OR BANGBANG ROBOT

42. Robot that is capable to stop at or move in unlimited number of points in executing a programmed trajectory.

SERVOCONTROLLED ROBOT

43. What do call a robot where its base is permanently or semi-permanently attached to the floor?

FLOOR MOUNTED ROBOT or PEDESTRAL ROBOT

44. In robotics, the loading/ unloading of cartoons, container, or pallet

PALLETING/DEPALLETING

45. In robot, the rotational and translational axes which measures robot motion.

DEGREE OF FREEDOM

46. It is a sensor used in magnetoencephalography.

SUPERCONDUCTING QUANTUM INTERFERENCE

47. In robotics, DC motors and stepper motors are preferred over AC motors because ____

THEY CAN WITHSTAND LARGE OVERLOADS

48. The detection by a robot though contact of touch, force, pattern slip and movement. It allows for the determination of local shape, orientation and feedback forces of a grasped workspace.-

TACTILE SENSING

49. Desired output parameter by a sensor

SET POINT

50. Will be turned on when motion limit occurs

LIMIT SWITCH

51. Mechatronics is the combination of mechanics and electronics. Mechatronics is coined in what country?

JAPAN

52. Robots with little if any computer power. Their only intelligent functions consist of learning a sequence of manipulative actions, choreographed by a human operator using a teach box

FIRST GENERATION OF ROBOT SYSTEM

53. A robot with a computer processes added to the robotic controller. This addition makes it possible to perform, in real time, the calculations required to control the motions of each degree of freedom in a cooperative manner to effect smooth motions of the

SECOND GENERATION ROBOT

54. Consists of multiple microprocessors

3RD GENERATION ROBOT SYSTEM

EXPERT SYSTEM

Complete List of Electronics Engineering Coaching Materials


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