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Electric vehicles 4-7 Flashcards | StudBud
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Electric vehicles 4-7
Electric vehicles 4-7
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Answers
1
Leadership in Energy and Environmental Design has ___ certification levels
6
8
4
2
2
One of the tests performed by an EVSE test is to
Test the cars communication protocol
Check the polarity of the cars voltage
Verify the car requires a charge
Test the EVSE ground fault response
3
Installing electric vehicle charging equipment may __ public perception of a business
Reduce
Improve
None of the above
Minimize
4
3 single phase Level II EVSE on 3-phase, 4-wire system and each draws 24A. What is line current on each phase
41.56A
52.6A
24A
64.33A
5
The __ section of the troubleshooting and repair guidelines flowchart outlines issues specific to testing andprocedures
1st
4th
2nd
3rd
6
According to the ADA guidelines, what percentage of general parking spaces should be accessible
2%
4%
8%
6%
7
The acronym RFID stands for
Recognized ferrite input detection
Radio frequency identification
Reduced fuel in direction
8
Conducting an on-site visit when assessing a location for EVSE installation is important because
Contractor can tell customer what must be done
Both needs and gather facts
It allows the electrical contractor to understand customer's needs
Provides opportunity for contractor to gather facts
9
Utilities may require a separate meter for EVSE __
All of them
Oversight
Treatment
Billing rates and plans
10
DC fast chargers pose accessibility challenges because their cables and connectors are larger and heavier
True
False
11
When calculating voltage drop, the following must be considered: conductor material, length, and operating temp
False
True
12
The proper hand-off of documentation should include electrical details, contract documents operation and maintenance and
Rebate and tax forms
Inspection report
All of them
Applications and approvals for incentive programs
13
Part of the initial setup of fleet EVSE is making sure the customer is comfortable with __
Both
The reporting software
Programming RFID tags
Neither
14
Calculate copper conductor size for circuit with VD 2%. Load is 32A, distance 400ft, 208V single phase
1 AWG
1/0 AWG
3 AWG
250 kcmil
15
Determining the appropriate location for EVSE requires the person planning the installation to consider
Location of possible electrical supply points
How the customer plans on using the installation
All of them
The security of the proposed location
16
Jurisdictional codes and requirements should __ be checked when determining the location and other features of EVSE
Always
Seldom
Never
Sometimes
17
Cord management is a major concern for manufacturers of EVSE as charge cables can cause a tripping hazard and be stolen
True
False
18
Bollards, curbs, and wheel stops can protect charging equipment from
Physical damage from vehicles
Earthquake
Vandalism
Lightning strike
19
Which of the following outlines the steps, in order, for repairing an EVSE unit
Lockout, disassemble, inspect all components for damage, repair and replace
Inspect all components, repair and replace, disassemble, lockout
Disassemble EVSE, lock out, inspect all components, repair and replace
Inspect all components, lock out, repair and replace, disassemble
20
Which of the following steps in the troubleshooting and repair guidelines flowchart requires PPE
Recommission
Release EVSE as fully operational
Test unit using as EVSE simulator
Document make, model, and serial number
21
Incentives available for EVSE installation include
Time-of-use discounted rates or other incentives from utility
All of them
Tax incentives from tbe city of municipality
State or federal tax credits
22
The final step in the troubleshooting and repair guidelines flowchart is to ___
Recommission EVSE
Release EVSE as fully operational
Test unit using an EVSE simulator
Document make, model, and serial number
23
ADA guidelines are useful when planning an EVSE installation because ___
They establish equipment characteristics that increase accessibility
There are no federal standards
They establish clear space around equipment
Both clear space and equipment characteristics
24
What is the general lighting load of a store with an area of 12,000 square feet
48,000 VA
36,000 VA
12,000 VA
45,000 VA
25
A 32,000 Sq ft office building has 120 20A, 120V duplex receptacle outlets. What is the branch circuits receptacle load
28,000 VA
21,600 VA
9,600 VA
32,000 VA
26
Issues with data servers, EVSE locator networks, and billing networks are typically the result of a __ problem
Ground fault
Contactor
Overcurrent protection
Communication
27
ADA parking space guidelines can be used as a guide when determining the number of EV spaces that should be accessible
False
True
28
Commercial and fleet EVSE installation often requires __ communication and __ functions
Networked/basic
None fo them
Wireless/few
Networked/revenue collection
29
Adequate site lighting increases the safety of an EVSE location
True
False
30
Proper location of EVSE may include consideration of ADA guidelines
True
False
31
__ is the process olthat ensures mechanical, ele,and other building systems are installed, tested and perform to docs
Providing the estimate
A one-line
Commissioning
The walk through
32
What is the minimum branch circuit size for a Level II EVSE with a 32A current rating
35A
32A
40A
55A
33
Operable parts of accessible equipment should be located ___ above finish grade pere ADA guidelines
10-30"
15-48"
24-96"
18-56"
34
What is the minimum size XHHW-2 copper conductor permitted for a Level II EVSE with 30A rating and 75° terminations
12 AWG
8 AWG
6 AWG
10 AWG
35
Documentation transfers important information about an installation from the contractor to the owner
False
True
36
Existing 120/208V, 3-phase, 600A with 220 non-cont and 172 cont loads. EVSE draws 32A each. How many can be added
6
9
3
2
37
Which of the following are benefits of commissioning the installation of EVSE
Reduced call back rate
All of them
Increased communication between customer and installer
Customer has peace of mind and is educated in the process
38
The most commonly reported repair to EVSE manufacturers is damage to the __
Panelboard
EVSE
Cord set
Contractor
39
A successful meeting with a prospective customer requires the contractor to __
Look professional and speak professionally
All of them
Listen to the customer and ask questions
Demonstrate that they sre qualified and have expertise
40
2 Level II EVSE circuits installed in same PVC. Each has 40A at 240V with EGC. what size copper EGC is required
8 AWG
6 AWG
10 AWG
4 AWG
41
A key component of commissioning fleet EVSE is to ensure the __ understands how to manage the software
Installer
Public
Serving utility
Customer
42
Recognized types of EVCE activation technology include
Both
RFID tags
Neither
Swipe cards
43
Public EVSE installations need to be protected from __ vehicles and maintenance equipment
Impacts with
Rain on
Theft of
Vandalism of
44
Information gathered during the site visit should include
Details about the existing electrical system
All of them
Notes on how the customer ontends to use EVSE
Details on the desired EVSE location
45
An office building has 22 kVA lighting at continuous operation and 35 20A receptacles. How much can be added
38,200 VA
33,800 VA
72,000 VA
30,560 VA
46
What is the maximum VD recommended for branch circuits and feeders in the NEC
1% branch/ 2% feeder
No voltage drop allowed
3% branch/ 5% feeder
2% branch/ 4% feeder
47
When a business installs charging equipment, the public may sense that the business supports
Affluence
The electrical industry
The oil industry
Sustainability
48
What is the minimum copper THHN feeder size for 12 EVSEs rated 24A, 120/208V 3-phase system, assuming 4 per phase
350 kcmil
2/0 AWG
4/0 AWG
250 kcmil
49
The first step in the troubleshooting and repair guidelines flowchart is to ___
Visually inspect EVSE
Document make, model, and serial number
Locate panel and check circuit breaker
Test unit using an EVSE simulator
50
9 Level II EVSE installed on 3-phase, 4-wire 120/208V system. Each is 208/240V and 24A. Minimum A of copper conductors
90A
180A
167A
156A
51
Trailblazing signs are for which of the following purposes
Advertise EV charging networks
Direct drivers to the location of EV charging equipment
Regulatory purposes
None of the above
52
Calculate voltage drop on single phase with 32 A load, 320 feet and 8 AWH copper THHN conductors
13V
14V
16V
15V
53
For information regarding specific tools required for servicing EVSE installed in public locations, refer to
NFPA 70
OSHA CFR1926
Manufacturers instructions
NFPA 70E
54
The maximum depth of a barrier in front of accessible equipment is
20"
10"
12"
15"
55
A Level II EVSE rated 32A and 208V installed. What size copper EGC is required
8 AWG
10 AWG
4 AWG
6 AWG
56
An existing 400A, 120/208V 3-phase service has 30 kVA non-continuous and 58 kVA continuous load. How much can be added
41,463 VA
33,281.92 VA
143.93 VA
102.5 VA
57
Utilities or municipalities may have requirements that __ basic code considerations
Are in addition to
Any of them
May require load calculations along with
Are equal to
58
Conductor insulation does not have an effect on voltage drop
False
True
59
EVSE-specific testing tools ensure ___ and ground-fault response
Correct incoming voltage
Proper communication protocol function
A tight connection to the vehicle
None of them
60
Installation of EVSE at an existing building is worth as many as ___ LEED points
1
15
3
11
