問題一覧
1
The clearance between conductors and roof where the service conductors are passing over roofs must be mm.
2500
2
An open system first law should be utilized for al the following except.
a piston-cylinder device with no inlet/exhaust valves
3
What refers to ions that are NOT involved in the overall reactions?
Spectator ions
4
What refers to the point in which bending moment changes sign through a zero value in strength of materials?
Point of contraflexure
5
Which of the following formula is CORRECT for temperature conversion?
Tf=9/5Tc+32
6
The amount of property in which a willing buyer wil pay to a willing seller for the property when neither one is under the compulsion to buy nor to sell is called value.
Market
7
Which of the following statement/s about sound is/are true? I. All sounds are produced by the vibration of bodies. Il. Sound cannot fravel through a vacuum. III. Sound can be transmitted through some material.
I, II, and lIl
8
An adiabatic process is characterized by which of the following?
The heat transfer is zero.
9
A* friend suffering from the flu has a fever and her body temperature is 101.5oF. What her temperature in °C?
38.6°C
10
Based on Section 18 of the RA. 7920, the minimum age requirement for qualifications of applicants for Registered Master Electricians Examination is at least years of age.
eighteen
11
The Chairman and members of the Board of Electrical Engineering are appointed by.
President of the Philippines
12
What is the MAXIMUM distance from the flooring to the receptacle outlet in dwelling unit in mm?
1800
13
"How tall does a wall mirror have to be in order for you to see all of yourself in the mirror? Imagine you stand a distance "d" from the mirror and your height is "h" and L is the length of mirror required.
L = 1/2 h
14
What is the metal used t o recover copper from a solution of copper sulphate?
Fe
15
An economy is experiencing inflation at an annual rate of 6%. If this continues, what wil 100 be worth five years from now, in terms of today's dollars?
74.73
16
A" typical jet fighter plane launched from an aircraft carrier reaches a take-off speed of 175 milh in a launch distance of 390 ft. How long in seconds does it take to launch the fighter?
2.4
17
A key concept in analyzing the filling of an evacuated tank is:
The enthalpy across a valve remains constant.
18
A student deposits, 1000 in a savings account that pays interest At the rate of 6% per year Compounded annually If all the money is allowed To accumulate how much will the student have after 12 years?
2012.20
19
In house wiring, ground conductors must not be
fused
20
Where receptacles are connected to a 30-A branch circuit, the maximum allowable cord and plug connected load shall NOT be more than
24
21
Which of the following elements and components is is reactive in its pure form?
Na
22
Find the rate of conduction heat transfer in W/m^2 through a 9.5 cm thick hardwood board, k=0.16 w/m-k, with a temp difference between the two sides of 20 degrees
213
23
Which of the following is a correct IF statement?
IF (I.GE.5) GO TO 7
24
Materials in this group are composed of one or more metallic elements such as iron, aluminum, copper, titanium, gold, and nickel. What is this group called?
metals
25
Select the incorrect statement of the first law if kinetic and potential energy changes are negligible.
Heat transfer equals internal energy change for aprocess.
26
In thermodynamics our attention is focus on which form of energy
Internal Energy
27
What does R.A. 9136 stand for?
Electric Power Industry Reform Act of 2009
28
Which of the following portion of hard disk space served as RAM?
virtual memory
29
Which of the following can be assumed to be reversible?
A piston compressing gas in a race engine.
30
a young Electrical engineer borrowed money p at 12% interest and paid 2000 per annum for the last four years what does he have to pay at the end of fifth year in order to pay off his loan
6922.93
31
What is the classification of a turbine if the water moves along the vanes toward the axis of rotation of the runner?
Radial flow
32
What is a coal that has been previously burned in an oxygen-poor environment?
Coke
33
Which work mode is a non-equilibrium work mode?
Energizing an electrical resistor
34
The vnit of joule can be converted to which of the following?
Pa*m^3
35
The exhaust process in the Otto and diesel cycles is replaced with a constant-volume process for what primary reason? A. B. C.
To simulate zero work of the actual exhaust process.
36
What is the potential difference between plates of a 40 micro f capacitor whose charge is 70 microC?
1.75 V
37
A volume of 450 cu. cm of air is measured at a pressure of 740 mmHg absolute and a temperature of 20oC. What is the volume in cu. cm at 760 mmHg absolute and 0oC?
408.25
38
Which of the following is/are the disadvantages/s of operating an ungrounded electrical system? I. Transient overvoltages cannot be controlled. II. Power system overvoltages are not controlled. III. Destructive arcing burndowns can occur on a second fault
I , II , III
39
The shape of the bending moment diagram over the length of beam having no external load is always
linear
40
Which of the following statements about work for a quasiequilibrium process is incorreet?
Work is the area under a P-T diagram
41
person invests P450 to be collected in &years. Given that the interest rate on the investment is 94.5% compounded annually, most nearly, what sum will be collected 8 years from now?
P 1 , 3 3 0
42
A student who wil inherit 5000 ni three years has a savings account that pays 5 1/2% per year, compounded annually. What is the present worth of the student's inheritance?
4258.07
43
The position of a vertical piston-cylinder device containing a gas has a mass of 60 kg and a cross-sectional area of 0.04 sq m. The local atmospheric pressure is 0.97 bar, and the gravitational acceleration is 9.81 m/sec^2. Determine the pressure in bar inside the cylinder.
1.12
44
Which of the following would be identified with a control volume?
Filling a tire with air at a service station
45
Which of the following is qualified as the chairman Of the continuing professional development council For Electrical Engineering
PREE board member
46
A student borrows 43000 from his uncle in order to finish school. His uncle agrees to charge him simple interest at the rate of 5 1/2% per year. Suppose the student waits two years and then repays the entire loan. How much will he have to repay?
$3330
47
What is the standardized communication technique for expressing instructions to computer?
programming language
48
The mathematical expression (1 + i) raised to n in Engineering Economies is referred to as the
compound amount factor
49
Section 23 of Article Il of RA 7920 - Issuance of Certification of Registration. The professional is required to renew license every year/s upon payment of registration fee.
three
50
A lamp placed 60 cm from a lens forms an image on a screen 30 cm away from the lens on the side opposite the lamp. What is the focal length of the lens?
20 cm
51
The PEC Part 1 2017 Edition si intended as a design specification or an instruction manual to qualified person. I. True Il. False
I only
52
The point that connects the saturated liquid line to the saturated vapor line is called the:
critical point
53
Branch circuit conductors supplying a single motor shal have an ampacity of how many percent of its rated full-load current?
125%
54
What annuity over a ten year period at %8 interest is MOST nearly equivalent to a present worth of P900?
14.90
55
A Carnot cyele is a cycle of special interest because.
It provides the maximum efficieney for any cycle.
56
What refers to the establishing interrelationships between people and things in such away that human and materials resources are effectively focused toward achieving the goal of the company?
organizing
57
The engines on a commercial jet aircraft operate on which of the basic cycles?
Brayton
58
Ideal fluid has:
no surface tension, no viscosity and no compressibility
59
* 1.2 uf capacitor is charged 3KV. What is the energy stored in the capacitor?
5.4 J
60
An economy si experiencing inflation at the rate of %6 per year. An item presently costs P9,000. If the %6 inflation rate continues, what will be the price of this item in five years
P 1,338.23
61
A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s square. Find the time for the feather to fall to the surface of the moon.
1.29 s
62
Select a correct statement of the first law if kinetic and potential energy changes are negligible.
Net heat transfer equals net work for a cycle.
63
The Central Processing Unit of computer is a combination of
arithmetic logic and control unit
64
The exhaust process in the Otto and diesel cycles is replaced with a constant-volume process for what primary reason?
To simulate zero work of the actual exhaust process.
65
A new engine design incorporates a piston that contains 0.60 kg of steel (specific heat =470J/kg*K) and 1.20 kg of aluminium (specific heat = 990 J/kg*K). How much heat is required to raise the piston from an initial temperature of 20 degree Cto its operating temperatures of 160 degree C?
192.36 kJ
66
Convection heat transfer involves both:
conduction and advection
67
Engineering thermodynamies does not include
utilization of energy
68
Which of the following statements is not true of the diesel cycle?
The combustion Process is a constant-volume process.
69
What is another term for modulus of rigidity?
Shear modulus
70
Which one of these statements is true for twinning?
It frequently occurs in hexagonal close-packed structures.
71
Which of the following second-law statements is incorrect?
If ice is melted in water in an insulated container, the net entropy decreases.
72
An engineer has received $10,000 from his employer for a patent disclosure. He has decided to invest the money in a 15-year savings certificate that pays 8% per year, compounded annually. What will be the final value of his investment, in terms of today's dollars, if inflation continues at the rate of 6% per year?
$13 242.69
73
"an external pressure exerted on a fluid is transmitted uniformly throughout the volume of the fluid". This statement is known as
Pascal's principle
74
An inventor claims that a thermal engine, operating between ocean layers at 270C and 10°C, produces 10 kW of power while discharging 9900 kJ/min. This engine is:
impossible
75
Which of the following would be identified with a control volume?
Filling a tire with air at a service station
76
Which of the following refers to the parallel axis theorem for second moment of area for strength of materials?
Steiner's theorem
77
At what annual interest rate is P500 one year ago equivalent to P600 today?
20%
78
A* piston cylinder 3 kgs of air 20°C and 300 kPa. It is now heated up in a constant pressure process to 600k. Find the work intheprocess, in kJ when R=0.287.
264
79
When installing the heatsink back into a computer after replacing a failed processor, which of the following must be doneduringinstallation?
Thermal compound must be installed between the processor and the heatsink.
80
Three capacitors C, =2 uF, C, =3 uF and C, =5 uF are connected as C, inseries to C, and C, and Cy are in parallel to Cz. What is the equivalent capacitance of this arrangement in uf?
6.2
81
Which of the following materials has the least modulus of elasticity?
Glass
82
Who is the present chairman of the Board of Electrical Engineering?
Francis mapile
83
An engineer has received 490 000 from his employer for a patent disclosure. He has decided to invest the money in a 15-year savings certificate that pays 8% per year, compounded annually. Suppose the engineer is in the 32% tax bracket, and is likely to remain there throughout the lifetime of the certificate. If inflation continues at the rate of 6% per year, what wil be the value of his investment, ni terms of today's dollars, when the certificate matures?
$9236
84
A description of the arrangements of atoms or ions in a material is called
structure
85
Air undergoes a three-process cycle with a P=const. process, a T =const. process, and a V=const. process. Select the correet statement for a piston-cylinder arrangement.
W=O for the V=const. process
86
The Rankine power cycle is idealized. Which of the following is not one of the idealizations?
Heat transfer does not occur across a finite temperature difference.
87
An economy is experiencing inflation at the rate of 6% per year. An item presently costs $100. If the 6% inflation rate continues, what will be the price of this item in five years?
133.82
88
What is the other term for storing data in a memory?
writing
89
Which of the following best defined the phrase "likely to become energized"?
Failure of insulation
90
Which of the following does not transfer work to or from a system?
A membrane that bursts
91
* technician has installed a new video card and the computer wil now only boot into VGA mode. Which of the following may be the cause of the problem?
The incorrect drivers are installed.
92
If you are appointed as a division manager, which of the following task is MOST likely you will do?
set goals
93
An interest rate of 10% compounded semiannually Is equivalent to how many percent Compounded quarterly
9.878%
94
What will P9,000 be worth after three years if it earns at the rate of 5% compounded annually?
Р1,157.63
95
What can you say about the following statement regarding centrifugal pumps? "The discharge of the centrifugal pumps can be throttled we doubt the building app of an excessive pressure or overloading it’s driving unit I. True II . False
1
96
Which of the following Republie Act that provide framework for the restructuring of the electric power industry including the privatization of the assets of NPC, the transition t o the desired competitive structure?
9136
97
Radiation is emitted by:
all material at a finite temperature
98
If you lie on the bottom of a swimming pool and look up, you can see the entire outside world by looking up from the vertex of a cone of half angle. For water, n=133 index of refraction. W what is the angle?
41.2
99
Which of the following is not an acceptable Sl unit?
Density measured in grams per cubie centimeter
100
The component of the Rankine eyele that leads to relatively low eyele efficieney is:
The condenser