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Electrical Principles for the Electrical Trades Volume 1 Jim Jenneson 6th Edition- Test Bank
Sample Questions
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Chapter 02
Student: ___________________________________________________________________________
| 1. | In the electroplating process an external voltage is applied across a pair of electrodes, causing:
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| 2. | In the electroplating process the electrode connected to the positive polarity of the supply is called the anode and the electrode connected to the negative is:
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| 3. | Primary cells are electrochemical devices that convert chemical energy into:
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| 4. | Secondary cell chemistries permit the cell to be recharged by:
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| 5. | Look at the following figure: The diagram shows a simple voltaic cell consisting of two electrodes, one of copper and the other of zinc, immersed in a solution of dilute hydrochloric acid. In this cell the copper electrode is:
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| 6. | This simple cell is not very practical, because the copper electrode becomes covered with hydrogen gas, preventing hydrogen ions from taking further electrons from the surface. This effect is known as:
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| 7. | To reduce the local action in a simple cell it is necessary to:
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| 8. | Two dissimilar metals in an electrolyte form a primary cell. The voltage across their terminals depends on the:
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| 9. | Look at the following table: A simple voltaic cell has electrodes of copper and aluminium. The EMF of the cell will be:
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| 10. | If a small amount of an acid, alkali or salt is added to water, it can become:
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| 11. | If an electric current flows through the electrolyte, it dissociates the molecules of the substances in solution into:
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| 12. | Look at the following diagram:
The diagram shows two copper plates that are immersed in a solution of water and copper sulphate. A voltage has been applied to the two electrodes, and a current is flowing. This current will cause the, copper sulphate to break down into:
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| 13. | 13.The following equation shows the shows the action if copper sulphate is dissolved in water and a current passed through it.
The arrow pointing to the right indicates dissociation, while the arrow pointing to the left indicates that:
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| 14. | When an electric current is passed through an electrolyte:
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| 15. | When the electrolysis method for transferring metal from one electrode to another is used on other metal components to place a metal coating on the surface of that metal, the b process is called:
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| 16. | Look at the following diagram: The drawing shows the basic requirements of an electroplating bath. In the drawing, the:
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| 17. | Anodising creates an oxide layer on the surface of a metal that is:
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| 18. | The electroerosion process can be used to:
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| 19. | Faraday’s first law of electrochemical deposition states that the mass of metal deposited is directly proportional to the:
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| 20. | Faraday’s second law of electrochemical deposition states that the mass of metal deposited by a quantity of electric charge is:
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| 21. | The following formula can be used to determine the amount of metal deposited by an electroplating bath. In the formula, ‘z’ stands for the:
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| 22. | Look at the following table: An electrolytic refining bath has a constant current of 4500 A. The amount of zinc deposited by this current in 18 hours will be:
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| 23. | Processes using the electrolytic method of metal deposition:
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| 24. | Look at the following diagram: The diagram shows the connection of a copper conductor to an aluminium conductor. The copper and aluminium will act as electrodes when an electrolyte is present from condensation or rain. In this situation, the metal with the higher potential:
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| 25. | Dissimilar metals in damp ground and adjacent to each other may produce stray currents. These stray currents can cause underground pipes and cables to:
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| 26. | Electrolytic corrosion of bronze propellers on ships can be minimised by bolting blocks of zinc to the metal hulls adjacent to the propellers. In this situation, the blocks are called:
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| 27. | When using the cathodic protection method of electrolytic protection, an external DC voltage is applied between the equipment to be protected and:
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Chapter 02 Key
| 1. | In the electroplating process an external voltage is applied across a pair of electrodes, causing:
Chapter 2.1-EKAS 2.8.1.2: E2, E3 & E4 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #1 KS01-EE104A T5 |
| 2. | In the electroplating process the electrode connected to the positive polarity of the supply is called the anode and the electrode connected to the negative is:
Chapter 2.1-EKAS 2.8.1.2: E2, E3 & E4 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #2 KS01-EE104A T5 |
| 3. | Primary cells are electrochemical devices that convert chemical energy into:
Chapter 2.2.1-EKAS 2.8.1.2: F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #3 KS01-EE104A T6 |
| 4. | Secondary cell chemistries permit the cell to be recharged by:
Chapter 2.2.2-EKAS 2.8.1.2: F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #4 KS01-EE104A T6 |
| 5. | Look at the following figure: The diagram shows a simple voltaic cell consisting of two electrodes, one of copper and the other of zinc, immersed in a solution of dilute hydrochloric acid. In this cell the copper electrode is:
Chapter 2.3-EKAS 2.8.1.2: F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #5 KS01-EE104A T6 |
| 6. | This simple cell is not very practical, because the copper electrode becomes covered with hydrogen gas, preventing hydrogen ions from taking further electrons from the surface. This effect is known as:
Chapter 2.3-EKAS 2.8.1.2: F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #6 KS01-EE104A T6 |
| 7. | To reduce the local action in a simple cell it is necessary to:
Chapter 2.3.1-EKAS 2.8.1.2: F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #7 KS01-EE104A T6 |
| 8. | Two dissimilar metals in an electrolyte form a primary cell. The voltage across their terminals depends on the:
Chapter 1.3.3-EKAS 2.8.1.2 E2, E3, E4 &F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #8 KS01-EE104A T6 |
| 9. | Look at the following table: A simple voltaic cell has electrodes of copper and aluminium. The EMF of the cell will be:
|
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #9 KS01-EE104A T6 |
| 10. | If a small amount of an acid, alkali or salt is added to water, it can become:
Chapter 2.4.-EKAS 2.8.1.2: E2, E4 &F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #10 KS01-EE104A T5 |
| 11. | If an electric current flows through the electrolyte, it dissociates the molecules of the substances in solution into:
|
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #11 KS01-EE104A T5 |
| 12. | Look at the following diagram:
The diagram shows two copper plates that are immersed in a solution of water and copper sulphate. A voltage has been applied to the two electrodes, and a current is flowing. This current will cause the, copper sulphate to break down into:
|
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #12 KS01-EE104A T5 |
| 13. | 13.The following equation shows the shows the action if copper sulphate is dissolved in water and a current passed through it.
The arrow pointing to the right indicates dissociation, while the arrow pointing to the left indicates that:
|
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #13 KS01-EE104A T5 |
| 14. | When an electric current is passed through an electrolyte:
Chapter 2.4.2-EKAS 2.8.1.2 E2, E4 &F5 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 02 #14 KS01-EE104A T5 |
Chapter 04
Student: ___________________________________________________________________________
| 1. | The minimal electrical circuit must contain three parts-a source, a path and a:
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| 2. | The source of supply of an electrical circuit is:
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| 3. | The load of an electrical circuit is the part that:
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| 4. | An electrical circuit needs a conductor to:
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| 5. | Switches control current flow within a circuit. When a circuit is open:
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| 6. | Look at the following diagram: With reference to the simple circuit shown above, the element marked ‘3’ is the:
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| 7. | For ammeters to read the current in a circuit, the ammeter must be connected so that:
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| 8. | In a series-connected circuit, there is only one path and the current from the source:
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| 9. | Look at the following diagram: The above drawing shows a:
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| 10. | In a parallel-connected circuit:
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| 11. | Look at the following diagram: In the diagram, the loads are connected:
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| 12. | Compound circuits are made up of:
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| 13. | Look at the following diagram: In the above diagram, the lamps are connected as a:
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| 14. | Look at the following diagram: The above diagram represents a:
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| 15. | When resistors are connected together, they can be replaced by a single resistor with the same overall resistance as the set of resistors. A resistor that has the same value as a group of combined resistors is called:
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| 16. | Loops are an engineering title for what electricians would normally refer to as:
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| 17. | Look at the following diagram: The number of current loops in the above circuit is:
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| 18. | The common electrical abbreviation for the potential difference between two points is:
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| 19. | Look at the following diagram: With reference to the memory jogger called ‘Ohm’s Triangle’ shown above, if the value of the current in a given circuit is required it can be determined by:
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| 20. | Look at the following diagram: This diagram shows the power wheel which can be used as a memory jogger when solving simple circuit analysis problems. This wheel is derived from:
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| 21. | Kirchhoff’s Voltage Law states that in any given circuit, the algebraic sum of the applied EMFs is equal to the:
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| 22. | The following formula can be used to determine the total resistance in a series circuit. In the formula the symbol R1 stands for the:
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| 23. | Look at the following diagram: The equivalent resistance to replace the three resistors in the series circuit shown above is:
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| 24. | The equivalent resistance of a number of series resistors is always:
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| 25. | When a number of components are in series, the current must pass through each component to return to the source. Therefore, should any one component, conductor or joint become an open circuit, the current:
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| 26. | The voltage across any number of components connected in parallel will:
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| 27. | Kirchhoff’s Current Law states that the sum of the currents entering a junction:
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| 28. | The following formula can be used to determine the equivalent resistance of a number of resistors in parallel: In the formula the symbol ‘RTotal‘ stands for the:
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| 29. | Look at the following diagram: The equivalent resistance to replace the three resistors in the parallel circuit shown above is:
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| 30. | The equivalent resistance of a number of parallel resistors is always:
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| 31. | In a parallel circuit, if one branch becomes open circuit, the:
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| 32. | When identifying sections of a compound circuit, components that are joined by a single conductor with no other connections, are connected in:
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| 33. | When simplifying compound circuits by the equivalent resistance method, wherever two or more resistors are found to be in series, they may be simplified by:
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| 34. | One method that can be used to find the total power in a circuit is to find the individual power used in every component and then:
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| 35. | Look at the following diagram: The diagram shown above has a battery of four 1.5 volt cells, connected via a switch to a 3 watt lamp. When the switch is closed, the current drawn from the battery will be:
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| 36. | Look at the following diagram: The reading on the ammeter in the above circuit will be:
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| 37. | Look at the following diagram: The reading on the voltmeter in the above circuit will be:
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| 38. | Parallel circuits have:
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| 39. | Look at the following diagram: The equivalent resistance of the above circuit is:
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| 40. | Look at the following diagram: With reference to the above circuit, the reading on the ammeter will be:
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| 41. | Look at the following diagram: With reference to the above circuit, the current through resistor ‘R1’ will be:
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| 42. | Look at the following diagram: With reference to the above circuit, the reading on the ammeter will be:
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| 43. | Look at the following diagram: With reference to the above circuit, the reading on the voltmeter will be:
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Chapter 04 Key
| 1. | The minimal electrical circuit must contain three parts-a source, a path and a:
Chapter 4.1-EKAS 2.8.1.2: B1 & B2 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #1 KS01-EE104A T2 |
| 2. | The source of supply of an electrical circuit is:
Chapter 4.1.1-EKAS 2.8.1.2: B1 & B2 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #2 KS01-EE104A T2 |
| 3. | The load of an electrical circuit is the part that:
Chapter 4.1.2-EKAS 2.8.1.2: B1 & B2 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #3 KS01-EE104A T2 |
| 4. | An electrical circuit needs a conductor to:
Chapter 4.1.3-EKAS 2.8.1.2: B1 & B2 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #4 KS01-EE104A T2 |
| 5. | Switches control current flow within a circuit. When a circuit is open:
Chapter 4.1.4-EKAS 2.8.1.2: B1 & B2 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #5 KS01-EE104A T2 |
| 6. | Look at the following diagram: With reference to the simple circuit shown above, the element marked ‘3’ is the:
Chapter 4.1.2-EKAS 2.8.1.2: B1 & B2 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #6 KS01-EE104A T2 |
| 7. | For ammeters to read the current in a circuit, the ammeter must be connected so that:
Chapter 4.1.5-EKAS 2.8.1.2: C4 & H8 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #7 KS01-EE104A T3 |
| 8. | In a series-connected circuit, there is only one path and the current from the source:
Chapter 4.2.2-EKAS 2.8.1.2: H1 & H4 |
| EPC 1, 2, 3, 4, 5, 6, 7 Jenneson – Chapter 04 #8 KS01-EE104A T8 |
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