AP/ITEC1000 Sections M and N "Introduction to
Information Technologies"
Winter 2015
Assignment # 2
Answers and Solutions
1)
a) Convert 123 to its binary representation: 12310 = 011110112. Positive numbers are always represented by
themselves.
The answer:

1.
What is the logic function of this circuit?
A.
Positive logic AND gate
B.
Positive logic OR gate
C.
Negative logic AND
gate
D.
Negative logic OR
gate
Answer: Option A
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ELECTRICIAN PRE-APPRENTICESHIP
MATH ENTRANCE EXAM
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May 2003
Electrician Pre-Apprenticeship
Math Entrance Exam
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Apprentice Electrical Technician Test
(ETT)
Preparation Guide
APPRENTICE ELECTRICAL
TECHNICIAN TEST (ETT)
About the Test
There are 40 questions with a maximum time limit of three hours. This is a closed book
test and calculators are allowed. Seventy perce

BASIC ELECTRICAL THEORY EXAM
This exam will test you level of comprehension on the basic electrical theory section of the electrical training course.
You have completed the Basic Electrical Theory Exam.
You scored 0 correct out of 20 questions.
Your final

1.
In n-type material the _ is called the majority carrier.
A.
electro
n
B.
hol
e
C.
proton
D.
neutron
Answer: Option A
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2.
The output frequency of a full-wave rect

1.
A silicon diode in a half-wave rectifier has a barrier potential of 0.7 V. This has the effect of
A.
reducing the peak output voltage by 0.7 V.
B.
increasing the peak output voltage by 0.7 V.
C.
reducing the peak input voltage by 0.7 V.
D.
no effect.
A

1.
Determine the value of the load resistor.
A.
RL = 5 k
B.
RL = 5.5 k
C.
RL = 6 k
D.
None of the above
Answer: Option B
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2.
In the operation of a half-wave rectifier

1.
Determine the current through each diode if E1 = E2 = 0 V.
A.
4.65 mA
B.
9.3 mA
C.
18.6 mA
D.
0.7 mA
Answer: Option A
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2.
The lower doping level _ the conductivity

1.
Determining rd to a high degree of accuracy from a characteristic curve is very accurate.
A.
True
B.
False
Answer: Option B
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2.
A(n) _ is the simplest of semicon

1.
Determine the value of the load resistor.
A.
RL = 5 k
B.
RL = 5.5 k
C.
RL = 6 k
D.
None of the above
Answer: Option B
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2.
In the operation of a half-wave rectifier

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ITEC1000 "Introduction to Information Technologies"
Assignment #1 Answer Form
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