Preboards

Question 1

Techniques that encompasses risk assignment and the inclusive evaluation of risk, cost and benefits of alternative project or policies

Answer 1

Risk-benefit analysis

Question 2

Fermentation of molasses to produce ethyl alcohol is done at ___________C

Answer 2

20-30

Question 3

A primary challenge in controlling MIMO systems is

Answer 3

The complexity of managing interactions between multiple variables

Question 4

Which of the following is not included in the practice of chemical engineering

Answer 4

Chemical analysis

Question 5

Evaluate Lim x-> 0+ sin x

Answer 5

1

Question 6

At which pH range is metal precipitation most efficient in a chemical precipitation process?

Answer 6

9-11

Question 7

LFL of a substance

Answer 7

Minimum concentration of a vapor in air above which it cannot ignite

Question 8

The members of the board of Chemical Engineering are empowered to decide on which of the following cases brought before them

Answer 8

Administrative cases

Question 9

The researcher performs a hypothesis test and obtains a p-value of 0.03. If the significance level is set to 0.05, what should the researcher conclude?

Answer 9

Reject the null hypothesis; the new medication is more effective

Question 10

Based on Water Quality Guidelines and General Effluent Standards of 2016, what should be the maintained concentration of NH3N for most classification of water bodies?

Answer 10

0.05 mg/L

Question 11

It is used to describe a model that incorporate randomness and unpredictability in the behavior of process variables, often represented using probability distributions and random variables in mathematic equations

Answer 11

stochastic

Question 12

How is a boiling liquid expanding vapor explosion defined?

Answer 12

The sudden release of pressure and heat due to the rupture of a vessel containing a superheated liquid

Question 13

The monthly interest rate is 2%, what would be its corresponding rate semi-annually?

Answer 13

0.12

Question 14

Toss a fair coin twice. What is the probability of observing at least one head?

Answer 14

P= E/S = 3/4

Question 15

In the context of risk assessment, the term LOPA stands for

Answer 15

Layer of Protection Analysis

Question 16

Which among the following is NOT true?

Answer 16

Functions are linearly independent if their Wronskian is equal to zero

(True: non-zero Wronskian guarantees linear independence)

Question 17

The first board of PRC was composed of Engr. Ramon T. Feliciano as chairman with Engrs. Vivencio S. Araos and _____________________ as members

Answer 17

Moises L. MIranda

Question 18

What is the main hazard associated with confined spaces in industrial environment?

Answer 18

Oxygen deficiency

Question 19

What does the Plastic Law, also known as the EPR Law, stand for?

Answer 19

Extended Producer’s Responsibility Law

Question 20

In the process of producing ethanol from corn, which process is essential in converting starch to sugar

Answer 20

hydrolysis

Question 21

Which term refers to a piece of legislation or a statute enacted as a means to practice constitutional rights?

Answer 21

Republic Act

Question 22

LOTO stand for

Answer 22

Lockout-Tagout

Question 23

A proportional controller is tuned to a process with a proportional gain of 5. If the output initially overshoots, what would reducing the proportional gain likely do?

Answer 23

Decrease the overshoot

Question 24

Steady state gain of the system’s open loop transfer

Answer 24

S= 0

Question 25

Which type of fire extinguisher should be used for a **flammable liquid fire**?

Answer 25

Carbon dioxide extinguisher

Question 26

Refers to **translation of the forecasted** human resource needs to personnel objective and goals

Answer 26

programming

Question 27

Common household item which has a chemical formula of *C5H8NO4Na*

Answer 27

MSG (Monosodium glutamate)

Question 28

The first president of the Philippine Institute of Chemical Engineers (PIChE) was

Answer 28

Jose C. Espino

Question 29

The person who holds the Number 1 registration number in the Roster of Chemical Engineers is

Answer 29

Felix V. Espino

Question 30

Under the Intellectual Property Rights (RA 8293), we have

Answer 30

Copyright Patent Trademark

Question 31

Which type of disturbances describes unpredictability in process control

Answer 31

Random disturbances

Question 32

In chemical engineeering, what is a pressure relief valve primarily designed to prevent?

Answer 32

Over-pressurization of equipment

Question 33

A type of controlling when the operations are already ongoing and activities to detect variances are made

Answer 33

Concurrent control

Question 34

All enzymes are made of

Answer 34

protein

Question 35

Which of the following gases is considered simple **asphyxiant**?

Answer 35

nitrogen

Question 36

The engr manager must be concern w/ the needs of his human resources. What refers to the need of the employees for food, drinks and rest

Answer 36

Physiological need

Question 37

Which type of ventilation system for controlling toxic gas emissions?

Answer 37

Local exhaust ventilation

Question 38

What project life cycle model is the most relevant for **information technology project**?

Answer 38

Waterfall model

Question 39

Electrostatic precipitators (ESPs) as highly effective for **removing fine particulates.** Which of the following operational parameters most significantly affects the efficiency of ESP?

Answer 39

Electric field strength within the ESP

Question 40

The 'Board' that is mentioned on the IRR RA 9275 refers to

Answer 40

Board of Examiners for Chemical Engineering

Question 41

Who recommends nominees to become Chairman and Members of the Board of the Chemcal Engineering to the President?

Answer 41

PIChE

Question 42

Independent variable in the equation : d2y/dx2

Answer 42

X (lower)