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CSLB C10 Test 1 | 120 Questions and Answers ()
(Verified Answers)
Prose1 Stuvia
THIS DOCUMENT CONTAINS:
CSLB C10
CSLB C10 Test 1
120 Questions and Answers
Verified Answers
CSLB
,1. What is the minimum required working clearance in front of an electrical panel
rated under 600 volts?
A) 30 inches
B) 36 inches
C) 42 inches
D) 48 inches
Correct Answer: B) 36 inches
Explanation: The National Electrical Code (NEC) specifies a minimum working space of
36 inches in front of electrical equipment rated under 600 volts. This clearance is
necessary to provide safe access for maintenance and operation, reducing the risk of
accidental contact with live parts.
2. Voltage drop in a wire is a function of which of the following factors?
A) Wire gauge only
B) Length of wire only
C) Wire gauge, length of wire, and current flow
D) The ambient temperature only
, Correct Answer: C) Wire gauge, length of wire, and current flow
Explanation: Voltage drop is the decrease in electrical potential along the path of
current flow. It is directly influenced by the resistance of the wire (determined by its
gauge and length) and the amount of current (amperage) flowing through it, according
to Ohm's Law (V = I x R).
3. A 12-volt, 13-watt fluorescent light operates for an average of 12 hours per day.
How many watt-hours does it consume daily?
A) 144 Wh
B) 1.08 Wh
C) 156 Wh
D) 25 Wh
Correct Answer: C) 156 Wh
Explanation: Watt-hours (Wh) are a unit of energy consumption calculated by
multiplying the power draw in watts by the time of operation in hours. For this light, the
calculation is 13 watts multiplied by 12 hours, which equals 156 watt-hours consumed
on an average day.
CSLB C10 Test 1 | 120 Questions and Answers ()
(Verified Answers)
Prose1 Stuvia
THIS DOCUMENT CONTAINS:
CSLB C10
CSLB C10 Test 1
120 Questions and Answers
Verified Answers
CSLB
,1. What is the minimum required working clearance in front of an electrical panel
rated under 600 volts?
A) 30 inches
B) 36 inches
C) 42 inches
D) 48 inches
Correct Answer: B) 36 inches
Explanation: The National Electrical Code (NEC) specifies a minimum working space of
36 inches in front of electrical equipment rated under 600 volts. This clearance is
necessary to provide safe access for maintenance and operation, reducing the risk of
accidental contact with live parts.
2. Voltage drop in a wire is a function of which of the following factors?
A) Wire gauge only
B) Length of wire only
C) Wire gauge, length of wire, and current flow
D) The ambient temperature only
, Correct Answer: C) Wire gauge, length of wire, and current flow
Explanation: Voltage drop is the decrease in electrical potential along the path of
current flow. It is directly influenced by the resistance of the wire (determined by its
gauge and length) and the amount of current (amperage) flowing through it, according
to Ohm's Law (V = I x R).
3. A 12-volt, 13-watt fluorescent light operates for an average of 12 hours per day.
How many watt-hours does it consume daily?
A) 144 Wh
B) 1.08 Wh
C) 156 Wh
D) 25 Wh
Correct Answer: C) 156 Wh
Explanation: Watt-hours (Wh) are a unit of energy consumption calculated by
multiplying the power draw in watts by the time of operation in hours. For this light, the
calculation is 13 watts multiplied by 12 hours, which equals 156 watt-hours consumed
on an average day.
