NUE 052 Practice Test 3

 
 
To sit a practice test, read each question carefully working out your answer as you scroll down the page. Answer multiple choice questions by clicking the button next to the most correct answer. When you have answered all questions click the Submit and Score button in the Test Information panel. Each question is then marked in turn with a message box pop up showing your result. Your test score is displayed in the Test Information panel when all questions have been marked. Each question is worth 4 marks. If the score shown is less than 90% correct you should try again. To return to the practice tests page click on the close test button.
 
     
 
1. The charge polarity of an electron is positive. True or false?
True
 False
2. The nucleus of an atom is negatively charged. True or false?
True
 False
3. Two kilovolts is equal to:
0.002 Megavolts
 2.0 Megavolts
 20 Megavolts
 0.02 Megavolts
4. Click the check box for the correct answers. (You must call all correct). Click the reset button to clear incorrect selections.
1.5 MegOhms = 1,500,000 Ohms
 2.4 Amps = 24,000 mA
 110,000,000 mV = 110 kV
 5 MW = 5,000 kW
 7,000 uV = 0.07 Volts
 1.5 x 10-3 V = 1.5 millivolts
5. Power consumed by a load is 200 watts at 200 volts. What is the power consumed at 400 volts? Click the reset button to clear your answer.
watts
6. Using a volmeter, the voltage reading across a closed switch is equal to:
equal to the supply voltage
 zero
 half the supply voltage
 230 volts
7. What is the power in a circuit with a 100 ohm resistor connected to 230 volts? Click the reset button to clear your answer.
watts
8. Opening a switch in a circuit will:
cause the load to overheat
 reduce the voltage by half
 increase the resistance
 stop current flow
9. Current taken by a heating load connected to a 230 volt supply is 20 amps. What is the resistance of the load? Click the reset button to clear your answer.
ohms
10. What is the name of a device used to protect a circuit from excessive current flow? Click the reset button to clear your answer.
11. What is the power dissipation in a circuit with a 500 kilohm load with 5 amps flowing?
kW
12. The voltmeter in the circuit below is correctly connected?
True
 False
Meter Circuit

Test Information

Test Score:

out of 48
(90% score is 40)

 
 
Finished answering? Go to the top of the page and press Submit and Score to check your score.