NACE CP1 Quizzes, Practical Questions and Answers 2023

NACE CP1 Quizzes, Practical Questions and Answers 2023 (Verified Answers) Ohm's Law relates the following... - Correct Answer volts, amps, resistance Resistance to current flow is lowest for

• low conductivity media
• small cross sectional area media
• short length of conductor
• high resistivity media - Correct Answer c

In a series circuit

• voltage drops are always equal
• total resistance equals the sum of individual resistances
• current varies through resistors
• total current is equal to the sum of the current through each resistor - Correct Answer

b According to Ohm's Law, an electrical circuit with a driving voltage of 12 Volts and a resistance of 10 Ohms produces a current of...(Amps) - Correct Answer 1.2 A Kirchoff's Current Law - Correct Answer the total current entering a circuit branch must equal the current leaving the branch Kirchoff's Voltage Law - Correct Answer the sum of the voltage drops in a series circuit must equal the circuit's total voltage In a series electrical circuit

• current is different across each resistor

b) Kirchoff's Voltage Law is obeyed

• voltage is the same across each resistor
• total resistance is the sum of the reciprocal of each resistance - Correct Answer b

In a parallel electrical circuit

• total resistance is the sum of all of the resistors
• current is the same through each resistor
• voltage is different across each resistor
• voltage is the same across each resistor - Correct Answer d

The driving voltage of an electrical circuit with a resistance of 1 Ohm and 100 mA is...(Volts) - Correct Answer 0.1 V 1 / 2

What is the total resistance in a series circuit consisting of three resistances: 1 Ohm, 2 Ohms, and 10 Ohms? - Correct Answer 13 Ohms If a resistance of 0.17 Ohms was measured across a conductive material L = 1 m, D = 10 cm, what is its resistivity? - Correct Answer 0.13 Ohm-cm Cations are _____ charged ions - Correct Answer positively Anions are ______ charged ions - Correct Answer negatively Which of the follow is true about an electrochemical cell?

• as polarization decreases, current will decrease
• as polarization increases, current will decrease
• as polarization increases, there is no change in current
• as polarization decreases, there is a decrease in driving voltage - Correct Answer b

Why does corrosion rate decrease as polarization increases? - Correct Answer polarization lowers potential difference between anode and cathode, causing a reduction in corrosion current and corrosion rate The weight of any material deposited on the cathode or released from the anode is

• directly proportional to the current
• directly proportional to the total resistance
• inversely proportional to the current
• inversely proportional to the resistance - Correct Answer a

Oxidation

• increases the negative charge of an atom or compound
• decreases the positive charge of an atom or compound
• is independent of reduction
• occurs when the electrons are lost from an atom or compound - Correct Answer d

Electrochemical corrosion requires

• an anode and electronic path
• a cathode and electrolyte
• an anode, a cathode, and an electronic path
• an anode, a cathode, an electrolyte, and an electronic path - Correct Answer d

In an anodic process

• positively charged ions leave the anode and enter the electrolyte
• electrons flow through the electronic path from cathode to anode
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