SLTC COMPREHENSIVE EXAMS 2025/2026 QUESTIONS
AND SOLUTION RATED A+
✔✔The strength of the voltage being produced depends on 3 primary factors: - ✔✔1.
The number of turns in the coil or wire
2. The strength of the magnetic field
3. The speed at which the magnetic lines of flux pass through the coil (induction)
✔✔True of False: A forcer applied to the free electrons in the conductor causes them to
move. Since the force causes current flow, it can be considered an electromagnetic
force (EMF) or voltage. - ✔✔True
✔✔True of False: An AC generator consists of a single loop of wire, which is placed
between the poles of permanent magnets and made to rotate. - ✔✔True
✔✔A sine wave is a: - ✔✔Graphical representation of what is happening to the voltage
in an AC current over a period of time.
✔✔A sine wave passes "0" how many times per full rotation? - ✔✔3
✔✔Frequency is measured in: - ✔✔Hertz
✔✔Root means square (RMS) is the actual amount of useful ______. - ✔✔Voltage
✔✔RMS = ______ x Peak Voltage - ✔✔0.707
✔✔True of False: A phase meter, also known as a phase tester, is used to check the
primary (low voltage) phase rotation. A phase meter is essentially a voltmeter for low
voltage. - ✔✔False: A phase meter is used to check "HIGH VOLTAGE" of each phase.
✔✔How many paths of current flow does a series circuit have? - ✔✔Only 1
✔✔What is constant in a series circuit? - ✔✔"I" (intensity) or Amperes
✔✔A parallel circuit always contains __ or more paths in which current can flow. - ✔✔2
✔✔True of False: An increase in the number of branches in a parallel circuit will cause
an increase in total current flow and decrease in total resistance in that circuit. - ✔✔True
✔✔Combination circuits are also known as series-parallel because they are exactly
that, a combination of both ______ _______ and ______ _______ - ✔✔Series circuits
and Parallel circuits
,✔✔What is the most common type of circuit for interior wiring? - ✔✔Series-parallel
✔✔What are the three types of rope used in linework? - ✔✔1. Natural Fiber
2. Synthetic fiber
3. Wire
✔✔Natural fiber rope have serious limitations. What are some of these limitations? -
✔✔1. Have short overlapping strands
2. Subject to rot and mildew
3. Shrink when wet, therefore reducing the working load limits
4. Deteriorate when exposed to sunlight
✔✔There are many different types of synthetic rope today. Name a few: - ✔✔1. Nylon
2. Polyester
3. Polypropylene
4. Polyethylene
5. Composite fiber (digger trucks)
6. poly-plus (handlines)
✔✔What are the three most common types of synthetic rope? - ✔✔1. Polypropylene
2. Poly-plus
3. Composite Fiber
✔✔Rust can erode the strands from the ______ ___ and the rope will not appear
damaged. - ✔✔Inside out
✔✔What is the biggest disadvantage of wire rope? - ✔✔It is conductive
✔✔What are knots used for? - ✔✔1. Tying 2 ropes together
2. Fastening rope around objects
✔✔What is the longest part of a rope? - ✔✔Standing End
✔✔What end of the rope is used to tie the knot? - ✔✔Running end
✔✔What is the middle or loop portion of the rope? - ✔✔The bite
✔✔True or False: Catalog breaking strength (CBS) is the force of pounds needed to
break the rope. - ✔✔True
✔✔Who determines the CBS of a rope? - ✔✔The manufactures
✔✔Design factor or DF is always going to be what? - ✔✔5
, ✔✔ER of an eye splice? - ✔✔95%
✔✔ER of a short splice? - ✔✔90%
✔✔ER of a bowline? - ✔✔65%
✔✔ER of a clove hitch? - ✔✔60%
✔✔ER of a square knot? - ✔✔60%
✔✔ER of a choke knot (timber hitch, running bowline). - ✔✔50%
✔✔To calculate the weight of an object, you must first know the ______. - ✔✔Volume
✔✔Sling tension is calculated to ensure the sling is not ______. - ✔✔Overloaded
✔✔The sling tension on each leg increase if the sling angle ______. - ✔✔Decreases
✔✔The greatest tension will be on the ______ _____. - ✔✔Standing Block
✔✔Friction is created whenever a rope passes through a ______. Friction creates
additional ______ on the rope. - ✔✔Sheave and tension
✔✔The industry standard of ___ is used for every sheave that a rope passes through.
(What is the percentage?) - ✔✔10%
✔✔The greatest mechanical advantage is ________. - ✔✔2 blocks
✔✔Fall line tension is calculate to ensure that the ___ of the block is not exceeded. -
✔✔SWL (Safe working load)
✔✔_______ are used to create convenient attachment points. - ✔✔Shackles
✔✔What are the two basic reasons for rigging in line work? - ✔✔1. Is to lift and maintain
control of the load
2. To maintain safe minimum clearance between personal, the load, and the lines or
equipment that may become energized.
✔✔The loads involved in rigging for line work can be divided into two groups: - ✔✔1.
Static force loads - load whose weight remains fixed (transformers, poles, etc.)
2. Dynamic force loads - load whose weight varies according to different conditions
(conductors)
AND SOLUTION RATED A+
✔✔The strength of the voltage being produced depends on 3 primary factors: - ✔✔1.
The number of turns in the coil or wire
2. The strength of the magnetic field
3. The speed at which the magnetic lines of flux pass through the coil (induction)
✔✔True of False: A forcer applied to the free electrons in the conductor causes them to
move. Since the force causes current flow, it can be considered an electromagnetic
force (EMF) or voltage. - ✔✔True
✔✔True of False: An AC generator consists of a single loop of wire, which is placed
between the poles of permanent magnets and made to rotate. - ✔✔True
✔✔A sine wave is a: - ✔✔Graphical representation of what is happening to the voltage
in an AC current over a period of time.
✔✔A sine wave passes "0" how many times per full rotation? - ✔✔3
✔✔Frequency is measured in: - ✔✔Hertz
✔✔Root means square (RMS) is the actual amount of useful ______. - ✔✔Voltage
✔✔RMS = ______ x Peak Voltage - ✔✔0.707
✔✔True of False: A phase meter, also known as a phase tester, is used to check the
primary (low voltage) phase rotation. A phase meter is essentially a voltmeter for low
voltage. - ✔✔False: A phase meter is used to check "HIGH VOLTAGE" of each phase.
✔✔How many paths of current flow does a series circuit have? - ✔✔Only 1
✔✔What is constant in a series circuit? - ✔✔"I" (intensity) or Amperes
✔✔A parallel circuit always contains __ or more paths in which current can flow. - ✔✔2
✔✔True of False: An increase in the number of branches in a parallel circuit will cause
an increase in total current flow and decrease in total resistance in that circuit. - ✔✔True
✔✔Combination circuits are also known as series-parallel because they are exactly
that, a combination of both ______ _______ and ______ _______ - ✔✔Series circuits
and Parallel circuits
,✔✔What is the most common type of circuit for interior wiring? - ✔✔Series-parallel
✔✔What are the three types of rope used in linework? - ✔✔1. Natural Fiber
2. Synthetic fiber
3. Wire
✔✔Natural fiber rope have serious limitations. What are some of these limitations? -
✔✔1. Have short overlapping strands
2. Subject to rot and mildew
3. Shrink when wet, therefore reducing the working load limits
4. Deteriorate when exposed to sunlight
✔✔There are many different types of synthetic rope today. Name a few: - ✔✔1. Nylon
2. Polyester
3. Polypropylene
4. Polyethylene
5. Composite fiber (digger trucks)
6. poly-plus (handlines)
✔✔What are the three most common types of synthetic rope? - ✔✔1. Polypropylene
2. Poly-plus
3. Composite Fiber
✔✔Rust can erode the strands from the ______ ___ and the rope will not appear
damaged. - ✔✔Inside out
✔✔What is the biggest disadvantage of wire rope? - ✔✔It is conductive
✔✔What are knots used for? - ✔✔1. Tying 2 ropes together
2. Fastening rope around objects
✔✔What is the longest part of a rope? - ✔✔Standing End
✔✔What end of the rope is used to tie the knot? - ✔✔Running end
✔✔What is the middle or loop portion of the rope? - ✔✔The bite
✔✔True or False: Catalog breaking strength (CBS) is the force of pounds needed to
break the rope. - ✔✔True
✔✔Who determines the CBS of a rope? - ✔✔The manufactures
✔✔Design factor or DF is always going to be what? - ✔✔5
, ✔✔ER of an eye splice? - ✔✔95%
✔✔ER of a short splice? - ✔✔90%
✔✔ER of a bowline? - ✔✔65%
✔✔ER of a clove hitch? - ✔✔60%
✔✔ER of a square knot? - ✔✔60%
✔✔ER of a choke knot (timber hitch, running bowline). - ✔✔50%
✔✔To calculate the weight of an object, you must first know the ______. - ✔✔Volume
✔✔Sling tension is calculated to ensure the sling is not ______. - ✔✔Overloaded
✔✔The sling tension on each leg increase if the sling angle ______. - ✔✔Decreases
✔✔The greatest tension will be on the ______ _____. - ✔✔Standing Block
✔✔Friction is created whenever a rope passes through a ______. Friction creates
additional ______ on the rope. - ✔✔Sheave and tension
✔✔The industry standard of ___ is used for every sheave that a rope passes through.
(What is the percentage?) - ✔✔10%
✔✔The greatest mechanical advantage is ________. - ✔✔2 blocks
✔✔Fall line tension is calculate to ensure that the ___ of the block is not exceeded. -
✔✔SWL (Safe working load)
✔✔_______ are used to create convenient attachment points. - ✔✔Shackles
✔✔What are the two basic reasons for rigging in line work? - ✔✔1. Is to lift and maintain
control of the load
2. To maintain safe minimum clearance between personal, the load, and the lines or
equipment that may become energized.
✔✔The loads involved in rigging for line work can be divided into two groups: - ✔✔1.
Static force loads - load whose weight remains fixed (transformers, poles, etc.)
2. Dynamic force loads - load whose weight varies according to different conditions
(conductors)
