3RD TSSA PART 3A1 - TEST (I)
QUESTIONS AND ANSWERS
Specific Gravity used in the Imperial system is equivalent to the _____ used in the
metric system. - Correct Answers -Relative density
A cylindrical tank has its axis vertical. It is 2 m in diameter and its mass is 800 kg. When
it is filled to 2 m high with oil, the total mass is 5050 kg. What is the relative density of
the oil? - Correct Answers -0.6764
The values of pressure that can have both a positive or a negative value is: - Correct
Answers -Gauge pressure
A triangle in which all three sides (a, b, c) are different lengths, is called a/an
___________ triangle.: - Correct Answers –Scalene
An internal combustion engine has 8 cyclinders, the diameter of each of the pistons is
10 cm. Assuming the force of explosion within the cyclinder is 314.16 N, determine the
average pressure acting on each of the cyclinders. - Correct Answers -40 kPa
A tensile test is performed by subjecting the specimen to a/an: - Correct Answers -
Stretching type load
Refer to the triangle below. Pythagoras' Theorem for this triangle may be stated as:
https://ibb.co/ct63KyK - Correct Answers -c² = a² + b²
The most destructive type of Stray Current Corrosion is:
1. AC Current directly from the Generator
2. AC Current from the transformer once its voltage has been reduced
3. DC Current from a welding device
4. DC Current from an improperly installed cathodic protection system - Correct
Answers -3, 4
If 10.4 m³ of air is compressed at a constant temperature to 5.1 m³ and 750 kPa gauge.
Calculate how much work is done on the gas, assuming atmospheric pressure to be
100 kPa. - Correct Answers -3089 J
The following items must be present before Sulphide Stress Corrosion Cracking can
occur:
, 1. Hydrogen Sulphide
2. A high strength steel
3. High velocity air movement
4. A surface crack in the steel for the corrosive agent to enter - Correct Answers -1, 2
What is the value of X in the following fractional equation:
(x/2) + (3x/4) = (4.5/3) - Correct Answers -1.2
A diagram that shows the stress caused by forces acting perpendicular to the beam at
every cross section along the length of a beam is called the _____ diagram. - Correct
Answers -Shear
When considering a steel block subjected to a tensile force, we would find the stress in
the block by:
1.Using the formula stress equals force divided by the area
2.Using the same formula we use to find stress in a block subjected to a compressive
force
3.Using the same formula we use to find the shear stress in a bolt - Correct Answers -1,
2, 3
The Process Flow Diagram shows:
1. The major equipment items
2. Detailed instrument and control loops
3. The major process flows
4. The piping, drawn to scale
5. The exact orientation of the equipment within the facility - Correct Answers -1, 3
The temperature at which water boils is dependent upon the: - Correct Answers -Acting
pressure
Correct term for any change of phase from a liquid to a vapor is: - Correct Answers -
Evaporation
Caustic corrosion in a boiler is usually found: - Correct Answers -In the higher heat
areas
If a material does not have the property of ductility then it will be: - Correct Answers -
Brittle
The legend that accompanies a set of P&ID's is used to identify: - Correct Answers -The
symbols and abbreviations that are used in the P&ID's
Hydrogen Blistering is one form of Hydrogen Induced Corrosion that is caused by: -
Correct Answers -Atomic hydrogen diffusion into very small irregularities in the steel and
joining together and lifting up the surface of the steel
QUESTIONS AND ANSWERS
Specific Gravity used in the Imperial system is equivalent to the _____ used in the
metric system. - Correct Answers -Relative density
A cylindrical tank has its axis vertical. It is 2 m in diameter and its mass is 800 kg. When
it is filled to 2 m high with oil, the total mass is 5050 kg. What is the relative density of
the oil? - Correct Answers -0.6764
The values of pressure that can have both a positive or a negative value is: - Correct
Answers -Gauge pressure
A triangle in which all three sides (a, b, c) are different lengths, is called a/an
___________ triangle.: - Correct Answers –Scalene
An internal combustion engine has 8 cyclinders, the diameter of each of the pistons is
10 cm. Assuming the force of explosion within the cyclinder is 314.16 N, determine the
average pressure acting on each of the cyclinders. - Correct Answers -40 kPa
A tensile test is performed by subjecting the specimen to a/an: - Correct Answers -
Stretching type load
Refer to the triangle below. Pythagoras' Theorem for this triangle may be stated as:
https://ibb.co/ct63KyK - Correct Answers -c² = a² + b²
The most destructive type of Stray Current Corrosion is:
1. AC Current directly from the Generator
2. AC Current from the transformer once its voltage has been reduced
3. DC Current from a welding device
4. DC Current from an improperly installed cathodic protection system - Correct
Answers -3, 4
If 10.4 m³ of air is compressed at a constant temperature to 5.1 m³ and 750 kPa gauge.
Calculate how much work is done on the gas, assuming atmospheric pressure to be
100 kPa. - Correct Answers -3089 J
The following items must be present before Sulphide Stress Corrosion Cracking can
occur:
, 1. Hydrogen Sulphide
2. A high strength steel
3. High velocity air movement
4. A surface crack in the steel for the corrosive agent to enter - Correct Answers -1, 2
What is the value of X in the following fractional equation:
(x/2) + (3x/4) = (4.5/3) - Correct Answers -1.2
A diagram that shows the stress caused by forces acting perpendicular to the beam at
every cross section along the length of a beam is called the _____ diagram. - Correct
Answers -Shear
When considering a steel block subjected to a tensile force, we would find the stress in
the block by:
1.Using the formula stress equals force divided by the area
2.Using the same formula we use to find stress in a block subjected to a compressive
force
3.Using the same formula we use to find the shear stress in a bolt - Correct Answers -1,
2, 3
The Process Flow Diagram shows:
1. The major equipment items
2. Detailed instrument and control loops
3. The major process flows
4. The piping, drawn to scale
5. The exact orientation of the equipment within the facility - Correct Answers -1, 3
The temperature at which water boils is dependent upon the: - Correct Answers -Acting
pressure
Correct term for any change of phase from a liquid to a vapor is: - Correct Answers -
Evaporation
Caustic corrosion in a boiler is usually found: - Correct Answers -In the higher heat
areas
If a material does not have the property of ductility then it will be: - Correct Answers -
Brittle
The legend that accompanies a set of P&ID's is used to identify: - Correct Answers -The
symbols and abbreviations that are used in the P&ID's
Hydrogen Blistering is one form of Hydrogen Induced Corrosion that is caused by: -
Correct Answers -Atomic hydrogen diffusion into very small irregularities in the steel and
joining together and lifting up the surface of the steel
