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Worksheets

EES 102 FINAL

Total questions: 44

Worksheet time: 22mins

Name
Class
Date
1.

Any conductor used in a RV needs to be sized according to?

a)

The location and length the wire will be run

b)

The lower voltage it can handle

c)

The distribution panel size and capacity

d)

The load and the overcurrent protection provided

2.

When 2 points of unequal potential or voltage are connected_______

a)

Current ceases to flow

b)

Current is interrupted

c)

Current flows

d)

Electrons move at various times

3.

A single photovoltaic cell has the capacity to produce______

a)

.5 volts

b)

1.5 volts

c)

12 volts

d)

5 volts

4.

Neutrons are_______ and electrons are______

a)

Negative; negative

b)

Positive; negative

c)

Neutral; positive

d)

Neutral; negative

5.

A diode is a semiconductor that passes current______

a)

In any direction

b)

In one direction

c)

Only on AC circuits

d)

Both directions

6.

Protons are ________.

a)

Neutral

b)

Proactive

c)

Negative

d)

Positive

7.

"PIE" triangle represents ____________.

a)

Pascal's law

b)

Ohm's law

c)

Newton's law

d)

Watt's law

8.

The resistance of a 100w, 120v lamp is approximately ________ Ohm’s.

a)

144

b)

120

c)

1200

d)

12

9.

Current carrying conductors used on the 120 VAC are required to be of the ________ copper.

a)
Solid type
b)

stranded type

10.

When measured with an ohmmeter, an un-failed overcurrent protection device will have ______.

a)

12VDC

b)

120VAC

c)

0 resistance

d)

High resistance

11.

An ohm is a measurement of ____________.

a)
Resistance
b)

voltage

c)

amperage

d)

wattage

12.

Components, devices, and equipment that utilize low voltage two wire current are often ____.

a)

Dry cell loads

b)

120 VAC loads

c)

Wet cell loads

d)

12 VDC loads

13.

Which statement is true?

a)

Electrons in the outer orbits are attracted less powerfully to the nucleus.

b)

Electrons in the outer orbits are attracted more powerfully to the nucleus.

c)

Protons in the outer orbits are attracted less powerfully to the nucleus.

d)

Protons in the outer orbits are attracted more powerfully to the nucleus.

14.

Joining batteries in series allows the tech to ________.

a)

Keep the same amperage and add voltage

b)

Keep the same voltage and add amperage.

15.

Convert 400 millivolts to volts.

a)

.04

b)

.40

c)

4.0

d)

.004

16.

In the final calculations of Ohm's law, current is always expressed in terms of ________.

a)
Amperes
b)

ohms

c)

volts

d)

watts

17.

Which of these is associated with system grounding?

a)

The power supply cord is connected to power pedestal

b)

Non-current carrying conductors are disconnected from ground

c)

Galvanic isolation is required to prevent electrical shock

d)

Non-current carrying metal parts are connected to ground

18.

Intentional grounding of all metal non-current carrying parts of the electrical system is _____.

a)

Circuit grounding

b)

Ground fault circuit protection

c)

Neutral isolation

d)

Equipment grounding

19.

GFCI (Ground Fault Circuit Interrupter) protection can be provided through specific GFCI receptacles or GFCI _____.

a)

Diode

b)

Circuit breakers

c)

Conductors

d)

Capacitors

20.

Which of the following is typically NOT a RV component that is controlled by a logic control system?

a)

Entertainment system

b)

Slide outs

c)

Lights

d)

Leveling system

21.

White wires should be connected at the distribution panel to _____.

a)

neutral

b)

ground

c)

hot

22.

An electrical circuit is any combination of a ______ and ______ connected to permit electrons to travel around in a continuous stream.

a)

Conductor; electricity source

b)

Series; parallel circuit

c)

Proton; neutron

d)

Resistor; transformer

23.

Batteries connected ______ provide a higher current capacity.

a)

In series

b)

To transformers

c)

Reverse polarity

d)

In parallel

24.

Which of the following is NOT a type of energy management system (EMS)?

a)

On demand

b)

Manual

c)

Automatically

d)

Programmable

25.

Electromotive force is equal to ______

a)

Powerage

b)

Wattage

c)

Voltage

d)

Potential charge

26.

Wire size is expressed in terms of ________.

a)

Watts

b)

Length

c)

Voltage

d)

Gauge

27.

In DC currents, the direction of current flow __________.

a)

is constant

b)

is bi-directional

c)

reverses periodically

d)

backwards

28.

Inverters are rated in ________.

a)

Kilowatts

b)

Milliwatts

c)

Watts

d)

Hours

29.

Why do RV's use converters?

a)

Replace generators

b)

Convert AC to DC

c)

Convert DC to AC

d)

Increase battery life

30.

What is the function of an energy management system?

a)

optimize 12 VDC distribution

b)

optimize inverter efficiency

c)

optimize generator efficiency

d)

optimize 120 VAC distribution

31.

Which is NOT required to wirelessly connect to logic control system?

a)

SSID

b)

logic control app

c)

Password

d)

internet access

32.

In order for app control of logic components, the RV system must be connected via

a)

12vdc power

b)

Wireless technology

c)

USB cable

d)

Daisy chained cable

33.

If a 15-amp breaker continues to blow on a confirmed 9-amp load, you should replace the ________.

a)
Breaker
b)

wire

c)

component

34.

If an AC circuit draws 15 amps at 120VAC what is the wattage?

a)

1800W

b)

18 W

c)

180 W

d)

18000 W

35.

When raising voltage of a 120VAC resistive load, its amperage draw will ____.

a)

Decrease

b)

Increase

c)

Remain the same

d)

Increase 1 amp every 10 v

36.

A unit with a 50-amp power supply cord, the total AC amp capacity available to the unit would be ____.

a)

Depends on length of shore cord

b)

Depends on panel circuits

c)

50 amps

d)

100 amps

37.

When a generator is running and supplying power but there is no power to the distribution panel, the most probable cause is ____.

a)

Weak converter

b)

Faulty transfer switch

c)

Speed of the generator motor

d)

Faulty distribution panel

38.

Measured voltage between leg 1 and neutral at the distribution panel of a 50amp panel when plugged into 50amp shoreline power is?

a)

12 VDC

b)

120 VAC

c)

110 VAC

d)

10 VDC

39.

A long wire offers____ resistance than a short wire.

a)

Less

b)

Same

c)

More

d)

Half

40.

To diagnose generator output measure ______ voltage on generator input side of the transfer switch.

a)

Input

b)

Output

c)

Converter

d)

Inverter

41.

A factor controlling resistance is ________.

a)

DC

b)

AC

c)

Wind

d)

Temperature

42.

Current that reverses direction in a regular pattern is called ____.

a)

Magnetic current

b)

Alternating current

c)

Direct current

d)

Circuit current

43.

On the ABYC wire color code RED is ________.

a)

DC-

b)

Ignition feed

c)

DC+

d)

Negative main

44.

Any combination of a conductor and a source of electricity connected, together to permit ________ to travel around in a continuous stream is an electrical circuit.

a)

Protons

b)

Neutrons

c)

Static

d)

Electrons