Question 1

In RBI program discrimination between equipment items on the basis of significance of potential failures.
A) Failure analysis
B) Determining failure modes
C) Consequence analysis
D) A&B

Accepted Answer

Failure analysis and determining failure modes are both part of the RBI program discrimination between equipment items on the basis of significance of potential failures.

Question 2

No deterioration found in the inspection program but still failure can occur under the following conditions.
A) During plant construction period
B) As a result of change or process upset condition
C) All the above

Accepted Answer

The answer of No deterioration found in the inspection program...

Question 3

Consequence side of the risk equation is normally managed by
A) Inspection alone
B) Process safety personnel
C) Management
D) B&C

Accepted Answer

The answer of Consequence side of the risk equation is...

Question 4

In general, the probability of failure is determined by
A) Deterioration mechanism
B) Effectiveness of inspection program
C) Consequence detailed
D) A&B

Accepted Answer

The answer of In general, the probability of failure is...

Question 5

Effective inspection program can be derived for RBI from
A) Proper NDE method best suited for deterioration mechanism
B) Inspection coverage
C) Inspection frequency
D) All the above

Accepted Answer

An effective inspection program for RBI must consider all three factors - proper NDE method best suited for deterioration mechanism, inspection coverage, and inspection frequency. Proper NDE methods help to identify the severity and extent of deterioration, while inspection coverage ensures that all susceptible areas are covered. Inspection frequency determines how often inspections should be scheduled to manage the risk effectively. Therefore, all the options are important for developing an effective inspection program for RBI.

Question 6

In RBI most of the probability assessment will be
A) Only quality assessment
B) Only quantity assessment
C) Blend of quality and quantity assessment

Accepted Answer

Most of the probability assessment in RBI will be a blend of quality and quantity assessment. This is because RBI involves analyzing the likelihood and consequence of various risks in order to prioritize inspection and mitigation efforts. Quantitative assessment involves using numerical data and statistical analysis to estimate the likelihood of risks occurring and the potential impact on assets. Qualitative assessment involves expert judgment and evaluation of factors such as human error, equipment reliability, and organizational culture. A combination of both quantitative and qualitative assessment provides a more comprehensive understanding of risk and enables effective decision-making for risk management.

Question 7

Deterioration susceptibility and rate can be done
A) By grouping the same material of construction/similar process/environment
B) Not possible to group under any circumstances
C) By random inspection method

Accepted Answer

Grouping the same material of construction/similar process/environment allows for more targeted and specific inspection and maintenance practices to be implemented to mitigate deterioration. The random inspection method may not be as effective in identifying and addressing deterioration in a timely manner.

Question 8

If the material of construction and internal/external conditions are the same
A) Inspection results can be related from one equipment can be related to the other equipment
B) We cannot do that, since we do not know about it
C) Need to consult Equipment Engineer for final decision

Accepted Answer

If the material of construction and internal/external conditions are the same, it is likely that inspection results can be related from one equipment to another. However, it is always important to verify with an Equipment Engineer to make a final decision.

Question 9

Qualitative analysis is done and the outcome will be
A) Exact number
B) High, medium and low or range
C) Only in report

Accepted Answer

The answer of Qualitative analysis is done and the outcome...

Question 10

Failure mode can primarily affects the
A) Magnitude
B) Consequences
C) A&B

Accepted Answer

The answer of Failure mode can primarily affects the
A) Magnitude
B)...

Question 11

Aqueous chloride solution is carried into a sensitized stainless steel vessel, the following cracking mechanism takes very rapidly depending on temperature.
A) Sulphide stress corrosion cracking
B) Leak can occur
C) Chloride stress corrosion cracking

Accepted Answer

Aqueous chloride solutions are known to cause chloride stress corrosion cracking in stainless steel. This can occur rapidly under certain conditions, such as high temperatures or the presence of residual tensile stresses. Sulphide stress corrosion cracking can also occur in stainless steel, but is generally caused by hydrogen sulphide exposure rather than chloride ions. Leakage is not a specific type of corrosion mechanism, but rather a potential consequence of corrosion damage.

Question 12

Qualitative assessment is done on the basis of
A) Knowledge of operating History
B) Inspection plans
C) Possible material deteriorations
D) All the above

Accepted Answer

The answer of Qualitative assessment is done on the basis...

Question 13

If operating condition have changed, deterioration rates based on inspection data from the previous operating conditions
A) Valid till the equipment exists with any change
B) May not be valid
C) Can be valid with some correction by engineers

Accepted Answer

Deterioration rates based on inspection data from previous operating conditions may not be valid if the operating conditions have changed. This is because the deterioration rate can be affected by factors such as temperature, pressure, and flow rate. Therefore, it is important to update the deterioration rates based on current operating conditions or re-evaluate the equipment to determine new deterioration rates. Option A is not accurate because the validity of the deterioration rates depends on the current operating conditions. Option C may be possible, but it is not always feasible to correct the deterioration rates without extensive analysis and testing.

Question 14

Deterioration for specific process equipment is not available, this can be sourced from
A) Published data
B) Experience with other similar equipment
C) Previous inspection data
D) All the above

Accepted Answer

The answer of Deterioration for specific process equipment is not...

Exam 2: Risk Based Inspection

In RBI program discrimination between equipment items on the basis of significance of potential failures.

No deterioration found in the inspection program but still failure can occur under the following conditions.

Consequence side of the risk equation is normally managed by

In general, the probability of failure is determined by

Effective inspection program can be derived for RBI from

In RBI most of the probability assessment will be

Deterioration susceptibility and rate can be done

If the material of construction and internal/external conditions are the same

Qualitative analysis is done and the outcome will be

Failure mode can primarily affects the

Aqueous chloride solution is carried into a sensitized stainless steel vessel, the following cracking mechanism takes very rapidly depending on temperature.

Qualitative assessment is done on the basis of

If operating condition have changed, deterioration rates based on inspection data from the previous operating conditions

Deterioration for specific process equipment is not available, this can be sourced from