PIChE Practice Exam

Question 1

What is the chemical equation for the Haber process, which is used to produce ammonia gas?

• N2 + 3H2 -> 2NH3
• N2 + 302 -> 2NO3
• N2 + 3CO -> 2NCO
• N2 + 3H20 -> 2NH4OH

Answer 1

N2 + 3H2 -> 2NH3

Question 2

What is the primary objective of Total Quality Management (TQM)?

• To reduce production costs
• To improve customer satisfaction
• To increase worker morale
• To increase market share

Answer 2

To improve customer satisfaction

Explanation:
Total Quality Management (TQM) is a management approach that aims to optimize the quality of an organization’s products and services by involving all employees in a continuous improvement process. The primary objective of TQM is to improve customer satisfaction through the delivery of high-quality products and services.

Question 3

What is the purpose of a Project Management Information System (PMIS)?

• To manage budgets and resources
• To track project progress
• To communicate project information to stakeholders
• All of the above

Answer 3

All of the above

Explanation: A Project Management Information System (PMIS) is a tool used by project managers to plan, execute, and control projects. PMIS is used to manage budgets and resources, track project progress, and communicate project information to stakeholders. The purpose of PMIS is to provide a centralized location for project information, making it easier for project managers to manage the project and for stakeholders to stay informed.

Question 4

Which of the following is not one of the steps in the project risk management process?

• Identifying risks
• Assessing risks
• Implementing control measures
• Determining the project budget

Answer 4

Determining the project budget

Explanation: Determining the project budget is not a step in the project risk management process. The steps in the project risk management process are identifying risks, assessing risks, prioritizing risks, developing risk response strategies, and implementing control measures. These steps are designed to help project managers understand and mitigate the risks associated with a project.

Question 5

What is the purpose of a Job Safety Analysis (JSA)?

• To evaluate the safety of a workplace
• To identify hazardous tasks and the steps to perform them safely
• To determine the root cause of accidents
• To develop safety training programs

Answer 5

To identify hazardous tasks and the steps to perform them safely

Explanation:
A Job Safety Analysis (JSA) is a tool used in safety management to identify hazardous tasks and the steps required to perform them safely. It involves breaking down a job into its individual steps, examining each step for potential hazards, and determining the best way to control those hazards. The purpose of JSA is to improve the safety of workers by ensuring that they have the knowledge and resources necessary to perform their jobs safely.

Question 6

What is the primary purpose of a safety audit?

• To evaluate the effectiveness of the safety program
• To determine the root cause of accidents
• To identify potential hazards in the workplace
• To develop safety training programs

Answer 6

To evaluate the effectiveness of the safety program

Explanation:
A safety audit is a systematic evaluation of an organization’s safety program. The primary purpose of a safety audit is to determine the effectiveness of the organization’s safety program, identify areas for improvement, and make recommendations for reducing the risk of workplace accidents. Safety audits typically involve reviewing written policies and procedures, observing workers in their tasks, and evaluating the overall safety culture of the organization.

Question 7

What is the primary responsibility of a safety manager in an organization?

• To enforce safety regulations
• To develop and implement safety policies and procedures
• To provide safety training to employees
• All of the above

Answer 7

All of the above

Explanation:
The primary responsibility of a safety manager in an organization is to ensure the safety of workers by enforcing safety regulations, developing, and implementing safety policies and procedures, and providing safety training to employees. The safety manager plays a critical role in creating a safe and healthy work environment by working with all departments in the organization to identify and control hazards. The ultimate goal of a safety manager is to reduce the risk of workplace accidents and injuries.

Question 8

What is the primary purpose of a budget in management control?

• To evaluate past performance
• To plan and control future activities
• To motivate employees
• To establish organizational goals

Answer 8

To plan and control future activities

Explanation: A budget is a financial plan for a specified period of time. The primary purpose of a budget in management control is to plan and control future activities. Budgets help organizations to set financial targets and allocate resources in line with their goals. By using a budget, management can monitor actual results and compare them to planned results, helping to identify areas where corrective action may be necessary.

Question 9

What is the main purpose of the Solid Waste Management Act (RA 9003)?

• To regulate the disposal of hazardous waste
• To regulate the disposal of all types of waste
• To regulate the production of waste
• To regulate the transport of waste

Answer 9

To regulate the disposal of all types of waste

Explanation:
The Solid Waste Management Act (RA 9003) is a Philippine law that aims to regulate the disposal of all types of waste in the country. The law establishes a comprehensive framework for the management of solid waste, including the segregation of waste at the source, collection, transport, and disposal of waste. The purpose of the law is to promote and ensure environmental protection and public health by reducing the environmental impact of waste and encouraging sustainable waste management practices.

Question 10

What is the principle of segregation at source in solid waste management?

• The separation of different types of waste at the source of generation
• The mixing of different types of waste at the source of generation
• The disposal of waste at the source of generation
• The transport of waste to a central disposal facility

Answer 10

The separation of different types of waste at the source of generation

Explanation:
The principle of segregation at source in solid waste management refers to the separation of different types of waste at the source of generation. This means that waste is separated into different categories, such as biodegradable, non-biodegradable, recyclable, and hazardous waste, at the point where it is generated.

Question 11

What is the responsibility of the local government unit (LGU) in solid waste management under RA 9003?

• To provide a central disposal facility for waste
• To enforce the segregation of waste at the source
• To provide waste collection services
• All of the above

Answer 11

All of the above

Explanation:
Under the Solid Waste Management Act (RA 9003), the local government unit (LGU) is responsible for a number of key functions in solid waste management. These include the enforcement of the segregation of waste at the source, the provision of waste collection services, and the provision of a central disposal facility for waste. The LGU is also responsible for ensuring that solid waste management in its jurisdiction complies with the provisions of the law and that waste is handled and disposed of in a safe and environmentally sound manner.

Question 12

What is a first-order linear differential equation?

• A differential equation that involves only the first derivative and is nonlinear
• A differential equation that involves only the first derivative and is linear
• A differential equation that involves higher-order derivatives and is linear
• A differential equation that involves higher-order derivatives and is nonlinear

Answer 12

A differential equation that involves only the first derivative and is linear

Explanation:
A first-order linear differential equation is a differential equation that involves only the first derivative and can be written in the form y’ + p(x)y = g(x), where y’ is the first derivative of y with respect to x, p(x) is a linear function of x, and g(x) is a function of x. The general solution to this type of differential equation can be found using methods such as separation of variables, integrating factors, or using the characteristic equation.

Question 13

What is the formula for calculating the kinetic energy of an object?

• KE = mv^2
• KE = mgh
• KE = mc^2
• KE = 0.5mv^2

Answer 13

KE = 0.5mv^2

Question 14

What type of control strategy involves measuring the deviation of a process variable from a set point and using this information to adjust the process accordingly?

• Open loop control
• Feedback control
• Feedforward control
• Cascade control

Answer 14

Feedback control

Explanation:
Feedback control involves measuring the deviation of a process variable from a set point and using this information to adjust the process accordingly. It is the most commonly used control strategy in process control, and is characterized by the use of a feedback loop that adjusts the process based on the deviation from the set point.

Question 15

What type of control strategy involves using a predicted disturbance in the process to make a corrective adjustment in advance?

• Open loop control
• Feedback control
• Feedforward control
• Cascade control

Answer 15

Feedforward control

Explanation:
Feedforward control involves using a predicted disturbance in the process to make a corrective adjustment in advance. This type of control strategy operates by detecting a potential disturbance before it occurs, and making an adjustment to the process in order to compensate for the disturbance before it actually occurs.

Question 16

What type of control strategy involves using the output of one control loop as the set point for another control loop in a hierarchical arrangement?

• Open loop control
• Feedback control
• Feedforward control
• Cascade control

Answer 16

Cascade control

Explanation: Cascade control involves using the output of one control loop as the set point for another control loop in a hierarchical arrangement. It is often used in complex processes where multiple control loops are required in order to achieve the desired performance. The cascading of control loops allows for the transfer of information and control between the loops, resulting in improved process performance.

Question 17

What type of statistical analysis is used to identify relationships between multiple independent variables and a single dependent variable?

• chi-squared test
• t-test
• ANOVA
• regression analysis

Answer 17

regression analysis

Explanation:
Regression analysis is used to identify relationships between multiple independent variables (predictors) and a single dependent variable (outcome). The objective of regression analysis is to fit a mathematical model to the data that can be used to make predictions about the value of the dependent variable based on the values of the independent variables. Regression analysis can be performed using simple linear regression, multiple linear regression, or non-linear regression, depending on the nature of the data and the research question being addressed.

Question 18

What type of statistical analysis is used to compare the means of three or more groups?

• chi-squared test
• t-test
• ANOVA
• regression analysis

Answer 18

ANOVA

Explanation:
ANOVA (analysis of variance) is used to compare the means of three or more groups. It is used to determine if there is a significant difference between the means of multiple groups, and is commonly used in experimental and comparative studies. ANOVA works by partitioning the total variability in the data into the variability between groups and the variability within groups, and then using a statistical test to determine if the between-group variability is significantly different from the within-group variability. The results of an ANOVA can be used to identify which groups are significantly different from one another and to compare their means.

Question 19

What method is used to determine the present value of an investment, based on its future cash flows and a discount rate?

• Present worth analysis
• Future worth analysis
• Annual worth analysis
• Benefit-cost analysis

Answer 19

Present worth analysis

Explanation:
Present worth analysis is used to determine the present value of an investment, based on its future cash flows and a discount rate. This method considers the time value of money and the discounted future cash flows associated with an investment, to determine its present value. The present value can be used to compare different investment options and to determine which option offers the best value in the present. It is important to note that the present value may not be the same as the total cost of an investment over its lifetime.

Question 20

What type of annuity pays equal payments at equal intervals, has a fixed term, and starts payments immediately?

• Ordinary annuity
• Annuity due
• Perpetuity
• Growing annuity

Answer 20

Annuity due

Explanation:
An annuity due pays equal payments at equal intervals, has a fixed term, and starts payments immediately. This type of annuity is similar to an ordinary annuity, but the payments are made at the beginning of each period rather than at the end. The present value and future value of an annuity due can be calculated using financial formulas, but the calculations will be slightly different than for an ordinary annuity due to the timing of the payments.

Question 21

What is the formula for calculating the present value of an ordinary annuity?

• FV = PV * (1+r)^n
• PV = FV / (1+r)^n
• PV = FV * (1+r)^-n
• PV = FV /((1+r)^n - 1)

Answer 21

PV = FV /((1+r)^n - 1)

Explanation:
The present value of an ordinary annuity is the present value of a series of future cash flows, discounted at a given interest rate. The formula for calculating the present value of an ordinary annuity is PV = FV /((1+r)^n - 1), where FV is the future value of the annuity, r is the interest rate, and n is the number of periods. This formula assumes that the interest rate remains constant over the life of the annuity and that payments are made at the end of each period.

Question 22

A company is considering the purchase of a new piece of equipment for $100,000. The equipment is expected to provide benefits for 5 years, with an expected cash flow of $30,000 per year. What is the payback period for the equipment?

• 3 years
• 4 years
• 5 years
• 6 years

Answer 22

4 years

Explanation:
The payback period is the length of time it takes for the benefits of an investment to recover its initial cost. In this case, the payback period can be calculated by dividing the initial cost of $100,000 by the expected annual benefits of $30,000. The payback period is therefore 100,000/30,000 = 3.33 years, which is rounded up to 4 years.

Question 23

A company is considering the purchase of a new piece of equipment for $100,000. The equipment is expected to provide benefits for 5 years, with an expected cash flow of $30,000 per year. What is the internal rate of return (IRR) for the investment?

• 8%
• 10%
• 12%
• 15%

Answer 23

12%

Explanation:
The internal rate of return (IRR) is the discount rate at which the net present value (NPV) of an investment is equal to zero. To calculate the IRR, we need to find the discount rate that makes the NPV equal to zero. This can be done using trial and error or by using a financial calculator. If the IRR is 12%, the NPV of the investment will be zero, which means that the expected benefits of the investment will exactly offset the initial investment cost

Question 24

A marketing research firm is conducting a survey to determine consumer preferences for a new product. They have collected data on the age, income, and product preference of 1000 consumers. What type of statistical analysis should the firm use to determine if there is a relationship between age, income, and product preference?

• Regression analysis
• Correlation analysis
• Chi-squared test
• T-test

Answer 24

Correlation analysis

Explanation:
Correlation analysis is used to determine if there is a relationship between two or more variables. In this case, the firm wants to determine if there is a relationship between age, income, and product preference. Correlation analysis can be used to calculate the strength and direction of the relationship between the variables. A positive correlation indicates that as one variable increases, the other variable also increases. A negative correlation indicates that as one variable increases, the other variable decreases.

Question 25

A data analyst is reviewing sales data for a company and wants to determine if there is a significant difference in sales between different regions. What type of statistical analysis should the analyst use?

• One-sample t-test
• Two-sample t-test
• ANOVA
• Regression analysis

Answer 25

ANOVA

Explanation: ANOVA (Analysis of Variance) is a statistical test used to determine if there is a significant difference in the means of two or more groups. In this case, the analyst wants to determine if there is a significant difference in sales between different regions. ANOVA can be used to compare the means of multiple groups to determine if there is a significant difference between them. The result of the ANOVA test will indicate whether or not there is a significant difference in sales between the different regions, and if so, which regions are significantly different.