Basic Electrical Circuits & Capacitance

Question 1

Which of the following is a manually-operated switch?

Pushbutton switch
Selector switch
Knife switch
All of the above

Answer 1

All of the above

Question 2

Which of the following is true of an electrical schematic diagram?

Represents components with standard symbols.
Shows how the components are interconnected.
Is helpful in troubleshooting a circuit.
All of the above

Answer 2

All of the above

Question 3

A(n) __________ determines if electricity is present in an electrical outlet.

ohmmeter
circuit tester
Megger test
Solenoid

Answer 3

Circuit tester

Question 4

Capacitance is measured in __________.

Farads
henrys
Ohms
Volts

Answer 4

Farads

Question 5

The energy stored by a capacitor is called a(n) __________.

induced voltage
electrostatic charge
voltage spike
All of the above
None of the above

Answer 5

Electrostatic charge

Question 6

A simple method for opening or closing a circuit is to use a __________.

switch
knife
screwdriver
none of the above

Answer 6

Switch

Question 7

Electricity is the flow of __________ in a conductor.

Protons
Neutrons
Electrons
Photons

Answer 7

Electrons

Question 8

Alternating current is one type of electrical current, what is the other type?

In-rush current
River current
Direct current
Unaltered current

Answer 8

direct current

Question 9

A knife switch consists of a lever and one or more sets of __________.

conductors
operators
knives
contacts

Answer 9

Contacts

Question 10

Circuit breakers should be sized __________ times the max power load to factor for surges.

0.95
1
1.25
1.75

Answer 10

1.25

Question 11

Which of the following is not a component of a basic electrical circuit?

Input device
Output device
Insulator
Power supply

Answer 11

Insulator

Question 12

Which of the following is a type of capacitor?

Electrolytic
Nonpolarized
Variable
All of the above
None of the above

Answer 12

All of the above

Question 13

Which of the following is an electrical output device?

Motor
Lamp
Resistor
All of the above

Answer 13

All of the above

Question 14

The contacts of a(n) __________ switch are open until acted on by the operator.

Normally closed
Adjacent
Normally open
Normally simulated

Answer 14

Normally open

Question 15

Constant voltage power supplies will maintain a constant voltage output under varying __________.

loads
weather conditions
levels of light
chemical reactions

Answer 15

Loads