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2365 Unit 614 Mock Exam Version A Actual
Questions And Answers (Verified Answers)
100% Guaranteed Pass, Complete A+ Guide
Q1. Which of the following is the correct unit of electrical
resistance?
a) Volt
b) Ampere
c) Ohm ✔
d) Watt
Rationale: Resistance is measured in ohms (Ω).
Q2. A circuit has a voltage of 230V and a resistance of 46Ω.
What is the current?
a) 0.2A
b) 5A ✔
c) 10A
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d) 2A
Rationale: I = V/R = 230/46 = 5A.
Q3. Which two of the following are correct for a series circuit?
(Select two)
a) Current is the same everywhere ✔
b) Voltage is the same everywhere
c) Total resistance is the sum of individual resistances ✔
d) Total resistance is less than smallest resistor
Rationale: In series, I constant; R_total = R1+R2+…; V
divides.
Q4. A 2.2kΩ resistor carries 10mA. The voltage across it is:
a) 0.22V
b) 22V ✔
c) 220V
d) 2.2V
Rationale: V = I×R = 0.01 × 2200 = 22V.
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Q5. What is the power dissipated by a 60W lamp connected
to 230V?
a) 60W ✔
b) 230W
c) 0.26W
d) 13800W
Rationale: Power rating is fixed if operated at rated voltage.
Q6. Which of the following is the correct formula for Ohm’s
law?
a) R = V × I
b) I = V × R
c) V = I × R ✔
d) P = V × I
Rationale: V = I × R is the fundamental Ohm’s law.
Q7. A resistor has a color code: Red, Red, Brown, Gold. Its
value is:
a) 22Ω ±5%
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b) 220Ω ±5% ✔ M. M.
c) 2.2kΩ ±5% M.
d) 22kΩ ±5% M.
Rationale: Red=2, Red=2, Brown=×10, Gold=±5% → M . M . M . M . M .
220Ω.
Q8. If the voltage in a circuit doubles and resistance stays the
M. M. M. M. M. M. M. M. M. M. M.
M. same, current will:
M. M.
a) Halve
b) Double ✔ M.
c) Stay the same M. M.
d) Quadruple
Rationale: I = V/R, direct proportion. M. M. M. M. M.
Q9. The unit of conductance is:
M. M. M. M. M.
a) Ohm
b) Siemens ✔ M.
c) Henry
2365 Unit 614 Mock Exam Version A Actual
Questions And Answers (Verified Answers)
100% Guaranteed Pass, Complete A+ Guide
Q1. Which of the following is the correct unit of electrical
resistance?
a) Volt
b) Ampere
c) Ohm ✔
d) Watt
Rationale: Resistance is measured in ohms (Ω).
Q2. A circuit has a voltage of 230V and a resistance of 46Ω.
What is the current?
a) 0.2A
b) 5A ✔
c) 10A
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d) 2A
Rationale: I = V/R = 230/46 = 5A.
Q3. Which two of the following are correct for a series circuit?
(Select two)
a) Current is the same everywhere ✔
b) Voltage is the same everywhere
c) Total resistance is the sum of individual resistances ✔
d) Total resistance is less than smallest resistor
Rationale: In series, I constant; R_total = R1+R2+…; V
divides.
Q4. A 2.2kΩ resistor carries 10mA. The voltage across it is:
a) 0.22V
b) 22V ✔
c) 220V
d) 2.2V
Rationale: V = I×R = 0.01 × 2200 = 22V.
,Page 3 of 126
Q5. What is the power dissipated by a 60W lamp connected
to 230V?
a) 60W ✔
b) 230W
c) 0.26W
d) 13800W
Rationale: Power rating is fixed if operated at rated voltage.
Q6. Which of the following is the correct formula for Ohm’s
law?
a) R = V × I
b) I = V × R
c) V = I × R ✔
d) P = V × I
Rationale: V = I × R is the fundamental Ohm’s law.
Q7. A resistor has a color code: Red, Red, Brown, Gold. Its
value is:
a) 22Ω ±5%
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b) 220Ω ±5% ✔ M. M.
c) 2.2kΩ ±5% M.
d) 22kΩ ±5% M.
Rationale: Red=2, Red=2, Brown=×10, Gold=±5% → M . M . M . M . M .
220Ω.
Q8. If the voltage in a circuit doubles and resistance stays the
M. M. M. M. M. M. M. M. M. M. M.
M. same, current will:
M. M.
a) Halve
b) Double ✔ M.
c) Stay the same M. M.
d) Quadruple
Rationale: I = V/R, direct proportion. M. M. M. M. M.
Q9. The unit of conductance is:
M. M. M. M. M.
a) Ohm
b) Siemens ✔ M.
c) Henry
