WorksheetsEsas macapagal
Total questions: 100
Worksheet time: 50mins
When we observe in the water, they appear to be much closer to the surface than they really are. A coin is placed at the bottom of a beaker containing water (n=1, 33) and benzene (n=1, 5) respectively one above the other. If the depth of the water is 10cm, While benzene has a depth of 6cm, what is the height at which the image of the coin will appear?
10
11.5
10.5
12.5
A home experimenter wants to make a one ohm resistor from 1 mm diameter carbon rod from a mechanical pencil. What length of the rod does the experimenter needs if the resistivity of carbon is 3.5 x 10^-5 ohmmeter?
22.44 mm
24.44 cm
22.44 cm
24.44 mm
The linear portion of the stress-strain diagram of steel is known as the
Elastic range
Plastic range
Modulus elongation
Irreversible range
A bar of uniform cross section is subject to uniaxial tension and develops a strain in the direction of the force of 1/800. Calculate the change of volume per unit volume. Assume u = 1/3
1/2400 (inc)
1/2400 (dec)
1/1200 (inc)
1/1200 (dec)
IEEE 1284 is a standard that defines
Parallel Communications
Series Communications
Wired Network
Wireless network
What is the weight percent of engineering sciences and allied subjects?
45
40
30
25
First law of thermodynamics is also known as
Conservation of Heat
Conservation of Energy
Heat Transfer
Utilization of Energy
In Excel, the cell A2 contains the value 2. The formula in cell B2 is = A2x4/..... If the equation in cell B2 was copied the cells C2 and D2. What will be the value in D2?
2
32
16
8
For completely corrosion resistant stainless steel, what minimum percentage of chromium in the alloy is required?
1.1%
11%
15%
3.2%
Which of the following in/are the disadvantage/s of operating an ungrounded electrical system?
I. Transient overvoltages cannot be controlled.
II. Power system overvoltages are not controlled.
III. Estructive arcing burndowns can occur on a second fault.
I only
I, II, III
II, III
I, II
This provides detailed information about a specific hazardous material and contains some of the following such name of substance, physical hazards, health hazards, safe handling procedures, control measures, emergency first aid procedures, etc. What is this called?
Management Safety Duty Sheet
Material Signages Data sheet
Management Safety Data Sheet
Material Safety Data Sheet
How much force is needed to keep a 85-kg cart moving at constant velocity on a level concrete road/ Use I = 0.04 for the coefficient of friction.
35.28 N
37.24 N
33.32 N
31.36 N
What is the potential difference between plates of a 40 IF capacitor whose charge is 70 IC?
2.25 V
2.50 V
1.50 V
1.75 V
If you are appointed as a division manager, which of the following task is MOST likely you will do?
Set goals?
Determine the resources needed
Set a standard
Develop strategies and tactics
Which of the following best defined the phrase "likely to become energized"
Failure of insulation
High-voltage equipment
Near energized electrical equipment
Equipment that is exposed to lightning
What decimal number is equivalent to binary number 1101?
14
12
11
13
A megabyte is exactly ____ bytes
1,084,567
999,999
1,048,576
1,000,000
A temperature of a body is measured to be 261/2C. Determine the temperature in 1/2F.
82.5
78.8
75.2
80.6
The Chairman and the members of the Board of Electrical Engineering are appointed by
Secretary of Department of Labor and Employment
Chairman of the Professional Regulation Commission
President of the Philippines
Secretary of the Department of Energy
Which of the following material has the least modulus of elasticity
copper
Aluminum
Steel
Glass
If P300 is earned in three months in an investment of P12,000, what is the annual rate of simple interest?
14%
12%
10%
8%
How many years will be required for an investment of P3000 to increase to P4081.47 at an interest rate of 8% per year compounded annaully?
6
4
3
5
The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always?
Parabolic
Linear
Cubical
Circular
What is the present value of P10,000 to be received 20 years from now, if the principal is invested at 8% per year compounded annually?
P 2387.34
P 2145.48
P 2743.21
P 2546.32
The electric power industry is divided into four sectors by RA 9136 namely; generation, transmission, distribution and
electricity end-users
commercial consumers
supply
residential consumers
How long will it take the money to double itself if invested at 5% compounded annually?
13.6 yrs
14.2 yrs
15.5 yrs
16.3 yrs
What prefix in steel identification means composition varies from normal limits?
E
H
X
B
An investor makes a loan of P 5,000 to be repaid in one lump sum at the end of one year. What annual interest rate corresponds to a lump-sum payment of P 5,450?
11.50%
9%
10%
8.50%
The color to designate dangerous parts of machines or energized equipment.
Red
Orange
Blue
Yellow
A person invests P 450 to be collected in 8 years. Given that the interest rate on an investment 14.5% compounded annually, most nearly, what sum will be collected 8 years from now?
P 1130
P 1050
P 1240
P 1330
Revenues of P 150, 000 will be generated at the end years 1 and 2. What is the MOST nearly the present value of this project if the effective annual interest rate is 10%?
P 58,400
P 80,400
P 69,500
P 77,500
Encryption can provide all of the following features of information systems security EXCEPT
confidentiality
integrity
authenticity
privacy
Which of the following technique a manager must use if he decides to absorb the risk in the project?
Use a different technology
Buying insurance
Use a different supplier
Create buffer in the form of management reserve or extra time in schedule
Current in an electrical circuit will take___to return to the source.
a high impedance path only
the path in the earth
only the path of least resistance
any and all paths available
Which of the following portion of a hard disk space served as RAM?
Cache
Random memory
Read-only memory
Virtual memory
What can you say about the following statement regarding centrifugal pumps? "The discharge of the centrifugal pumps can be throlled without the building up of an excessive pressure or overloading its driving unit" I. True II. False
Either I or II
Both I and II
II
I
Which of the following is NOT a unit of work?
N-m
erg
dyne
kg-sq. m/sq. sec
A piston cylinder contains air at 600 kPa, 290 K and a volume of 0.01 m^3. A constant pressure process gives 54 kJ of work out. Find the final temperature of the air, in K.
26,390
2,639
2,900
3,225
A new engine design incorporate a piston that contains o.60 kg of steel (specific heat = 470 J/kg*K) and 1.20 kg of aluminum (specific heat + 910 J kg*K). How much heat is required to raise the piston from an initial temperature of 20 degree C to its operating temperatures of 160 degree C?
192.36 kJ
205.520kJ
198.84 kJ
185.78 kJ
A student deposit P 2,500 in a savings account pays interest at the rate of 6% per year. How much will the student have after one year?
P 2,650
P 2,450
P 2,800
P 2,900
The leaning tower of Pisa is 54.5 m tall. Supposedly Galileo investigated the behaviour of falling objects by dropping them from the top of this tower and timing their descent. How long in seconds would it take an object to fall 54.5 m if air effects are negligible?
3.48
33.3
34.8
3.33
Which of the following insulation color identify the grounded conductor of a branch circuit?
Black
Green
Yellow
White
A rigid container is heated by the sum. There is NO shaft work associated with the container. From the first law of thermodynamics, what is the resulting work equal to?
the change in internal energy
zero
the heat transfer
the volume times the change in pressure
Which is more desirable?
I. Investing P 2,000 at 6% per year compounded interest for three years.
II. Investing P 2,000 at 7% per year simple interest for three years.
II
Either I or II
I
Both I and II
How long will it take for an investment of P 5,000 to grow to P 7,500, if it earns 10% simple interest per year?
7 years
6 years
5 years
4 years
Given a free-falling body with air resistance neglected, if the final position travelled is four times its initial position. By what factor does the velocity of the body increase?
twice
half
four times
same
Which of the following device is used in thermal power plants to reduce the level of pollution?
pulverizer
chimney
precipitator
induced draft fan
The passing general weighted average rating for the licensure examination of Registered Electrical Engineers must be 70% with NO GRADE BELOW___ in any subjects in MATHEMATICS, ESAS and Electrical Engineering as required under section 19(b) of RA 7920
55%
65%
60%
50%
Where do stress concentrations occur?
I. Near the points of application of concentrated loads
II. Along the entire length of high distributed loads
III. At discontinuities
I and II
I and III
I,II and III
II and III
Find the present worth of a 5 years annuity paying P 3,000 at the end of each year, with interest at 6% compounded annually.
Php 13,479. 56
Php 12,637.09
Php 12,215.85
14,743.27
Which of the following CORRECTLY describes atoms located at grain boundaries?
They are located primarily in highly strained and distorted positions
All of these are correct
They have a higher free energy than atoms in the undisturbed part of the crystal lattice.
They are subjected to the same type of interatomic forces that are present in the interior atoms of the crystal
A tire 0.500 m in radius rotates at a constant rate of 200 rev/min. Find the inward acceleration (m/s2) of a small atoms lodged in the tread of the tire (on the outer edge).
130
219
214
110
A hydraulic hoist raises a 1750 kg car. 1.8 m in an auto repair shop. The hydraulic pump has a constant pressure of 800 kPa on its piston. What is the increase in potential energy (kJ) of the car should the pump displace to deliver that amount of work?
3.09
30.90
17.17
139.06
The three moment equation may be used to analyze
an axially end-loaded beam
a continuous beam
a beam loaded at the third points
a step tapered column
What color is used to designate caution limited to warning against starting, use of, or movement of equipment which under repair or being worked upon?
Blue
Orange
Red
Yellow
In a certain experiment, argon effuses from a porous cup at 4.o mmol/min. How fast would chlorine effuse under the same conditions?
3 mmol/min
4 mmol/min
6 mmol/min
7 mmol/min
Which of the following statements about work for a quasi-equilibrium process is incorrect?
The differential work is inexact
work is area under a P-T diagram
Work is a path function
Work is always zero for a constant-volume
The binary representation 10101 corresponds to which base ten number?
25
21
23
27
An object that has momentum must also have
Acceleration
impulse
kinetic energy
potential energy
For a fully developed laminar flow of fluids in a pipe, the average velocity is what fraction of the maximum velocity?
1/3
2/3
1/2
3/4
A carnot engine operates between 250 degree F and 1200 degree F. What is the thermal efficiency?
79.17%
20.83%
42.77%
57.23%
Which are NOT included in the duties and responsibilities of PRBEE?
Supervise and regulate the practice of electrical engineering in the philippines
All of these
Issue special permit to individual foreign electrical engineer and electrician for specific projects
Perform such other functions and duties as may be necessary to implement effectivity of this Act.
For circuits supplying lighting units that have ballasts, transformers, or autotransformers, the calculated load shall based on
the total watts of the lamps
voltage of the lamps
the total ampere rating of each units
VA of the lamps
Which of the following best describes the 0.2% offset yield stress?
It is the elastic limit after which a measurable plastic strain has occured
It is the stress at which the material plastically strains 0.2%
It is the stress at which the material plastically strains 0.2%
It is 0.2% below the fracture point of the material
A metal bar 40 mm x 40 mm is loaded with a compressive force of 485kN. The nominal length of 200 mm is compressed by 0.4 mm and the thickness increased by 0.04 mm. What is the Poisson's ratio?
2
2.5
1
3
The Economic Order Quantity (EOQ) is defined as the order quantity which minimizes the inventory cost per unit time. Which of the following is not an assumption of the basic EOQ model with no shortages?
the demand rate is uniform and constant
there is a positive cost on each unit inventoried
The entire recorder quantity is delivered instantaneously
there is an upper bound on the quantity ordered
Which of the following is an example of an integrity violation of e-commerce security?
A website is not actually operated by the entity the customer believes it to be
An anauthorized person intercepts an online communication and changes its constant
A customer denies that he or she is the person who placed the order
A merchant uses customer information in a manner not intended by the customer
A vertically loaded beam, fixed at one end and simply supported at the other is indetermine to what degree?
First
second
third
fourth
What refers to the point in which the bending moment changes sign through a zero value in strength of materials?
zero stress point
critical point
point of contraflexure
point of inflection
"The earth" best defines of which of the following term?
grounded conductor
bonding
grounding electrode
ground
A 1.2 IF capacitor is charged 3 KV. What is the stored energy in the capacitor?
4.5 J
6.7 J
7.6 J
5.4 J
A typical jet fighter plane launched from an aircraft carrier reaches a take-off speed of 175 mi/h in a launch distance of 310 ft. How long in seconds does it take to launch the fighter?
2.8
3.9
3.3
2.4
What is the most essential attribute of a project manager
Leadership
Charisma
Communication skill
Knowledge
What refers to any technique used either to minimize the probability of an accident or to mitigate its consequences?
reliability management
risk management
What is the charge of oxygen ion in CaO?
-1
-2
1
2
What type of curve is generated by a point that moves in uniform circular motion about an axis, while travelling with a constant speed, v, parallel to the axis?
cycloid
an epicycloid
hypocycloid
a helix
Which of the following is a characteristics of project management processes?
Iterative
Unique
Unnecessary
Standardized
Which process group focuses on completing the requirements of the project?
Initiating
Planning
Executing
Closing
Mr. Cruz borrowed P 20,000.00 from a bank with 15% interest per annum, find the total amount to be repaid at the end of two years.
P 24, 664.75
P 23, 000.00
P 25, 720.90
P 26,450.00
Eighty grams of brass (specific heat 0.092 cal/g-K) at 292 degrees C is added to 200 g of water (specific heat 1 cal-K) at 14 degree C is an insulated container of negligible heat capacity.
29.3
23.9
23.5
25.3
Which of the following relationship defines enthalpy?
h = pv = T
h = u + pu
h = u + p/v
h = u + p/T
Which of the following can be considered a control volume system?
Compression of air in a sealed balloon by squeezing
The Goodyear Blimp during flight
Expansion of gas cylinder after combustion
Filling a car tire with air at a service station
Buying insurance is a form of
Risk elimination
Risk reduction
Risk sharing
Risk absorption
A project manager is informed midway through project planning that she was given inaccurate data regarding new regulations affecting the required end date of her project. She may need to make a few adjustments, but she thinks she can still manage the project to complete it before the regulations take effect. She confirms this by analyzing the sequence of activities with the least amount of scheduling flexibility. What technique is she using?
critical path method
Flowchart
Precedence diagramming
Work breakdown structure
What rate of interest compounded annually is the same rate of interest of 8% compounded
8.16%
8.07%
8.12%
8.24%
Find the principal amount if the amount of interest at the end of two years is P 4,000 for a simple interest of 6.25% per annum.
P 36,000
P 32,000
P 27,000
P 23,000
What is the percent composition by mass of oxygen (O) element in sulphuric acid '(h2SO4)? H = 1.008 amu, S = 32.07 amu and O = 16.00 amu?
65.25%
34.75%
62.25%
32.27%
What is the metal used to recover copper from a solution of copper sulphate?
Fe
Na
Ag
Hg
How is "molarity" defined?
the number of moles of solute in 1 L of solution
the number of gram-equivalent weights of solute in L of solution
the number of moles of solute in 1000 g of solvent
the number of gram-formula weighs
In the periodic table of elements, which ONE of the following is light metal?
Potassium
Mercury
Silver
Gold
What is a substance that cannot be broken down into simpler substances?
Ion
Atom
Molecule
Element
It is an atom of a specific isotope
Ion
Atom
Nuclide
Fermion
Which of the following in thermodynamics is considered as the heat content of system?
Internal Heat
Molar Heat
Entropy
Enthalpy
All of the following are grounds for revocation of PRC license except
perpetration of any fraud or deceit in obtaining a certificate of registration
for gross negligence or incompetence or for unprofessional or dishonorable conduct
for violation of the Electrical Engineering Act
non-payment of debts
An economy is experiencing inflation at the rate of 6% per year. An item presently costs P 1,000. if the 6% inflation rate continues, what will be the price of this item in five years?
P 1,306.96
P 1,370.09
P 1,338.23
P 1,402.55
Which of the following is the Ideal Gas Law?
V/T = k
P1/T1=P2/T2
PV = nRT
V = k x 1/P
What is the standard color for safety signages to indicate the presence of radiation hazards example in the X-ray laboratory in the hospital?
Green with combination of red
Orange
Blue
Purple with combination of yellow
Which of the following technique a manager must use if he decides to absorb the risk in the project?
Use a different technology
Buying insurance
Use a different supplier
Create buffer in the form of management reserve or extra time in schedules
You are thinking about retirement and you are considering investing money each month so you will have Php 1,000,000 in 30 years. If the nominal annual interest rate is 8% and the interest is compounded monthly, what is the amount of monthly investment?
Php 780.95
Php 670.98
Php 690.70
Php 750.89
protection of workers from impact penetration from falling and flying objects, blows, and from limited electric shock and burns shall be provided where there is reasonable probability of exposure to such hazards
hard hat
Toe board
Harness
hardness
