ESAS OBJECTIVE Flashcards
1
Q
When was the UNIVAC 1 developed?
A.1944
B. 1946
C. 1950
D 1951
A
C
2
Q
The field of research that is developing computer systems which mimic human thought in a specific area and improve performance with experience and operation is what field of research?
A.human intelligence
B. artificial intelligence
C. animal intelligence
D. computer intelligence
A
B
3
Q
A computer that is designed to perform a specific operation is what kind of computer?
A. all purpose
B. special purpose
C. general purpose
D. single purpose
A
B
4
Q
What determines the size of an analog computer?
A. where it will be installed
B. number of operations using it
C. cost
D. number of functions it has to perform
A
D
5
Q
A megabyte is exactly ___ bytes
A. 1,000,000
B. 999 999
C. 1,000,001
D. 1,048,576
A
D
6
Q
It is an operating system for multiple users with built in networking capability. The ability to run multiple task at one time
A. no operating system capable
B. MS DOS
C. UNIX
D. any operating system is capable
A
C
7
Q
MS Word is a/an
A. application
B. system software.
C. utility
D. none of these
A
A
8
Q
In a computer network, the amount of time required for a message to travel from the sending to the sending computer.
A. baud
B. Latency
C. seek time
D. response time
A
B
9
Q
Which of the following is the busiest bus and the one that carries that actual data?
A. Address bus
B. Data bus
C. Control bus
D. Buffer
A
B
10
Q
A 15 pins 3 row female connector is use for
A. USB
B. VGA
C. printer
D. scanner
A
B
11
Q
It is a microscopic place of silicon that contains thousands of micro-miniature electronic circuit components mainly transistors.
A.IC
B.microchip
C. transistors
D. diodes
A
B
12
Q
Binary is also known as
A machine language
B. the decimal system
C. number 1-10
D. the control unit
A
A
13
Q
The computer manufacturer uses _____ to store specific instructions that are needed for
computer operations
A. RAM
B. ROM
C. CPU
D. SYS
A
B
14
Q
ROM is ____ memory
A.volatile
B. nonvolatile
C. temporary
D. none of the above
A
B
15
Q
Short term memory is also known as
A. ERM
B. CPU
C. RAM
D. DRAM
A
C
16
Q
The more ___ that your computer has, the faster it process data
A. RAM
B. CPU
C. PICO
D. NANOS
A
A
17
Q
A 7-bit code that allows only 128 different combinations and commonly used in microcomputers is ASCII code which stands for?
A. American Standard Code for Information Interchange
B. American Svstem of Code for International Information
C. Alternative Standard Code for International Interchange
D. Alternative System Code for Information Interchange
A
A
18
Q
______ are special instruction that control the activities of a computer
A. CPU
B. chips
C. program
D. ALU
A
C
19
Q
A computer hardware abbreviation “ALU” stands for?
A. analog local unit
C. addressable local unit
B. algebraic unit
D. arithmetic logic unit
A
D
20
Q
What do you call adding latitude and longitudinal directions to pictures and videos you post?
A. Geotagging
B. Posting
C. Podcasting
D. flagging
A
A
21
Q
What is the default view when printing a document?
A. landscape
B. page setup
C. portrait
D. print page
A
C
22
Q
What do you call a translated program in machine language?
A. A source program
B. An object program
C. A machine program
D. A users’ program
A
B
23
Q
Is software that translates a program written in a high-level language into low-level instructions before the program is executed?
A. Compiler
B. Debugger
C. Assembler
D. Interpreter
A
A
24
Q
The simplex method is extremely efficient in solving which of the following classic problems?
A. The “transportation problem”
B. The “assignment problem”
C. the “transhipment problem”
D. the “allocation problem”
A
D
25
If all variables in linear programming problem are restricted to be integers, which, if any, basic assumption of linear programming is violated?
A.certainty
B. additivity
C. proportionality
D. divisibility
D
26
Which logic gate is similar to the function of two series switches?
A. AND
B. NAND
C. OR
D. NOR
D
27
All are basic operation in Boolean Algebra except:
A. Logical addition
B. Logical subtraction
C. Logical multiplication
D. Logical complementation
B
28
Which of the following is NOT an octal number?
A. 15
B. 77
C. 105
D. 19
D
29
In Microsoft Excel for Windows, what short-cut key is use to Select an entire row in a worksheet?
A. Ctrl+spacebar
B. Shift+underline(__)
C. Shift+spacebar
D. Ctrl+ dollar sign ($)
C
30
When a decimal point of a binary digit is moved 1 place to the right ___
A. multiplies by 10
B. divides by 10
C. multiplies by 2
D. divides by 2
C
31
Electronic communications was discovered in which century?
A. 17th
C. 19th
B. 18th
D. 20th
C
32
If the amplitude of the modulating signal applied to a phase modulator is constant, the output signal will be
A. intermediate frequency
B. the carrier frequency
C. both A and B
D. neither A nor B
B
33
The TV signal uses which type of modulation for picture and sound respectively?
A. AM, DSB
C. FM, AM
B. DSB, FM
D. AM, FM
D
34
Random interference to transmitted signals is called
A. noise
C. output signal
B. signal
D. disturbance
A
35
The communications medium causes the signal to be
A.amplified
C. attenuated
B. filtered
D. compensated
C
36
Distortion of the modulating signal produces harmonics which cause an increase in the signal
A. bandwidth
B.band pass
C. resonant frequency
D. output
A
37
The process of translating a signal, with or without modulation, to a higher or lower frequency for processing is called
A. frequency conversion
B. frequency inversion
C. frequency spectrum
D. frequency modulation
A
38
How many pins comprise the RS232C?
A. 20
B. 24
C. 25
D. 26
C
39
In a radio receiver, noise is generally developed at
A. IF stage
B. RF stage
C. audio stage
D. receiving antenna
B
40
It is the high frequency sound that cannot be heard by human ear.
A. ultrasonic
C. transonic
B. subsonic
D. supersonic
A
41
The number of frames per second in the Philippine television system is
A.525
C. 60
B. 625
D. 30
D
42
What is the light source typically used in multimode optical fiber?
A.photoresistor
C. phototransistor
B. laser
D. LED
D
43
Which of the following is a unit of information?
A.dit
B. AMI
C. entropy
D. HDB3
A
44
The most accurate type of test equipment used for measuring high power is the
A. bolometer
C. wattmeter
B calorimeter
D. wavemeter
A
45
GSM has a fixed bit rate of
A. 259 Kbps
B. 260 Kbps
C. 270 Kbps
D. 280 Kbps
C
46
Bluetooth operates in what frequency.
A 2.1 GHZ
B. 2.2 GHZ
C.2.3 GHZ
D. 2.4 GHZ
D
47
Simultaneous two-way communications is called
A. full duplex
B. simplex
C. half-duplex
D. multiplex
A
48
A display of signal amplitude versus frequency is called the
A. frequency domain
B. s-domain
C. time - domain
D. none of these
A
49
Are signals in the 0,3 THz to 300 THz range and are not generally referred to as radio waves. Used in heat-seeking guidance systems, electronic photography, and astronomy
A. EHF
B.infrared
C. visible light
D. light - wave communication
B
50
A signal that repeats at a uniform rate
A. random wave
B. longitudinal wave
C. transverse wave
D. periodic wave
D
51
It is a solid transparent fiber of glass or polymer that carries an optical signal.
A. balanced line
B. star quad
C. fiber optic
D. none of these
C
52
Which of the following instruments is used for the comparison of candle powers of different sources?
A. Radiometer
B. Bunsen meter
C. Photometer
D. Candle meter
C
53
Cavity factor is applied in which field?
A. Video system
B. Computer
C. Audio system
D. illumination system
D
54
Prior to starting of fluorescent, heating of electrode is done by
A.Ballast
B. Heater
C. Starter
D. Filament
C
55
A choke coil (ballast) is generally used in series with the tube in the fluorescent lamp circuit in order to
A. prevent flickering
B.limit current to a proper value
C. suppress radio interference
D. improve overall power factor
B
56
In some fluorescent lamp installations, wheels of rotating machinery appear to be stationary due to
A. phosphorescence
B. stroboscopic effect
C. poor circuit power factor
D. fluctuating electric supply
B
57
What do you call the interior lighting where the roof trusses or ceiling height is greater
than 7.6 m (25 ft) above floor level?
A. High pressure sodium (HPS)
C.High bay
B. High Intensity discharge (HID)
D. High ballast
C
58
R.A. 7920 is a consolidation of House Bill No. ____ Senate Bill No. ____
A. 11063 & 1766
B. 10163 & 1676
C. 16013 & 1667
D. 13106 & 1776
A
59
The Board of Electrical Engineer shall compose of ______
A. one chairman
B. one chairman & one member
C. one chairman & two members
D. three member
C
60
Sec. 4, Art II, RA 7020 states the powers and duties of the board. What does it mean by quasi-legislative powers?
A. evaluation
B. rule-making
C. control
D. supervisory
D
61
What is otherwise known as "PRC Modernization Law"?
A. RA 8981
C. RA 8819
B. RA 7981
D. RA7819
A
62
Month of May is dedlared as "Electrical Safely Month' as declared by President Aquino what proclamation number is this?
A. 7920
B. 9136
C. 93
D 193
D
63
What does OSHS Means?
A. Occupational Safety and Health Standards
B. Operational Safety and Health System
C. Occupational Safety and Handling System
D. Operational Security and Health Standards
A
64
If a tropical storm is going to the Philippine area of responsibility within 24 hrs, what kind of alert status to be raised in accordance to Philippine Distribution Code?
A. Blue alert
B. Weather disturbance alert
C. Yellow alert
D. Red alert
A
65
The functional unit of NPC (National Power Corp.) created to pursue the missionary electrification function is SPUG, what does SPUG means?
A. System Power Users Group
C. Small Power User Generator
B. Small Power Utilities Group
D. System Power Utilities Generation
B
66
What is SoLR from Philippine Distribution Code (PDC)?
A. Supplier of last resort
C. Supplier of load resort
B. Source of load resort
D. Source of line reserve
A
67
As specified by ERC (Energy Regulatory Commission), a large customer is a customa
with a demand at least ______ MW or the threshold value specified.
A. 1.0
C. 0.75
B. 0.5
D. 2.0
A
68
Are voltage or currents that change in discrete steps or levels
A.analog signal.
C. digital signal
B. continuous signal
D. both A and B
C
69
A modem converts
A. analog signals to digital signals
B. digital signals to analog signals
C. both analog signals to digital and digital signals to analog signals
D. neither analog signals to digital and digital signals to analog signals
C
70
Any undesirable electrical energy that falls within the pass band of the signal
A. electrical noise
C. atmospheric noise
B. external noise
D. uncorrelated noise
A
71
Over modulation results in
A. weakening of the signal
B. distortion
C. excessive carrier power
D. none of these
B
72
Demodulation is done in
A.transmitter
B.receiving antenna
C. radio receiver
D. none of these
C
73
One-way communications is called
A. simplex
B. duplex
C. facsimile
D. telemetry
A
74
Associated with the rapid and random movement of electrons within a conductor due to change in temperature
A. shot noise
B. thermal noise
C. transit-time noise
D. internal noise
B
75
Recovering information from a carrier is known as
A. detection
C. multiplexing
B. modulation
D. demodulation
A
76
Radio signals are made up of
A. electric and magnetic fields
B. electric fields
C. magnetic fields
D. none of these
A
77
Electromagnetic waves produced primarily by heat are called
A. infrared Rays
C. x-rays
B. gamma rays
D. blue ray
A
78
The maximum percent modulation that can be imposed without causing excessive distortion.
A. 100%
B. 90%
C. 70.71%
D. 50%
A
79
What is a substance that cannot be decomposed into simpler substances during ordinary chemical reactions?
A. compounds
B. atom
C. molecule
D.elements
D
80
Liquid in chemistry is
A. solute
B. viscosity
C. solvent
D. water
C
81
Chemical symbol of Sodium Oxide
A. NaO
B. Na2O2
C. Na2O
D. NaO2
C
82
What is the empirical formula for nitric acid?
A. NH2OH
B. HNO3
C. HNO2
D. NH4OH
B
83
Which of the following is highly reactive in its pure form?
A. HCI
B. CO2
C. Na
D. He
C
84
What are the elements comprises vinegar?
A.Carbon, Nitrogen, Oxygen
B. Sulfur, Hydrogen, Oxygen
C. Carbon, Hydrogen, Oxygen
D. Phosphorus, Hydrogen, Oxygen
C
85
All of the following statements about pH of a solution are correct, EXCEPT:
A. it is -log10[H+]
B. it is held reasonably constant in buffer solutions
C. pH of tap water is below 7 due to dissolved CO2
D. It is zero for neutral solutions
D
86
What is used for predicting the behavior of non-ideal gases?
A. Compressibility factor
C. Emissivity factor
B. Expansivity factor
D. Van der Waal's factor
A
87
The chemical equation of fully-charged Lead-acid cell is
A. PbO2 + 2HSO4 + Pb
C. Pb SO4 + H2O + Pb
B. 2Pb SO4 + 2H2O
D. Pb SO4 + H2O
A
88
Elements which generally exhibits multiple oxidation state are
A. Metalloids
C. Non-metals
B. transition elements
D. noble gasses
B
89
In electrolysis, the anions migrate to the anode. Which of the following ions migrate to the other electrode?
A. Acidic ions
B. Neutral ions
C. Basic Ions
D. Cations
D
90
How are elements numbered 58 to 71 in the periodic table called?
A Lanthanons
B. Actinons
C. Earth metals
D. Noble gas
A
91
What theory of atomic structure which stated that no two electrons in a given atom can have the same set of four quantum numbers?
A. Bohr
B. de Broglie
C. Pauli
D. Heisenberg
C
92
The statement that equal volumes of all gases under the same conditions of temperature and pressure contain very nearly the same number of molecules is known as
A. Avogadro's law
C. Gay-Lussac's law
B. Dalton's law
D. Boyle's law
A
93
Base samples causes litmus to turn
A. blue
B. red
C. yellow
D. green
A
94
Gases, water, alcohol and benzene are examples of
A. Newtonian fluids
C. Bingham fluids
B. Pseudoplastic fluids
D. Dilatant fluids
A
95
Minimum energy needed for reaction is called
A. Fermi Energy
C. valence band
B. Activation Energy
D. Conduction band
B
96
In the periodic table of elements, the number of new artificially prepared (synthetic) elements is
A. 15
B. 16
C. 14
D. 13
A
97
What is the molecular weight of Nitric acid (HNO3)?
A. 47.01
C. 31.01
B. 63.01
D. 65.02
B
98
The mole is a basic unit of measurement in chemistry. Which of the following is NOT equal to or the same as 1 mol of the substance indicated?
A. 22.4 L of nitrogen (N2) gas at STP
C. 12 g of carbon atoms
B. 6.022 x 10^23 oxygen (O2) molecules
D. 16 g of oxygen (O2) molecules
D
99
What is the oxidation state of Aluminum?
A. +2
B. +3
C. -4
D. -2
B
100
What element is known as the lightest metal?
A.Aluminum
B.Manganese
C. Magnesium
D. Lithium
D
101
Which is the strong bond between hydrogen atoms known as?
A. The ionic bond
B. The metallic bond
C. The covalent bond
D. The Van der Waals
C
102
When a solid has a crystalline structure, the atoms arranged in repeating structures called:
A. lattice
B. unit cell
C. crystal
D. magnetic domain
B
103
When a solid has a crystalline structure, the atoms arranged in repeating structures called:
A. lattice
B. unit cell
C. crystal
D. magnetic domain
B
104
In a crystal structure, which is an interstitial atom?
A. An atom missing at a lattice point
B. An extra atom sitting at a non-lattice point
C. A different element at a lattice point
D. A line defect
B
105
The ores from which zinc is obtained is ____
A Sphalerite
B. Magnetite
C. Pyrite
D. Dolomite
A
106
What group of steels are air hardened, medium alloy tool steels?
A. group A
C. group S
B. group D
D. group H
A
107
The purpose of copper in steel alloying is to increase
A. machinability
C. atmospheric corrosion resistance
B. brittleness
D. dynamic & high temperature strength
C
108
Which of the following materials is NOT a Viscoelastic material?
A. Plastic
C. Glass
B. Metal
D. Concrete
B
109
Which of the following affects most of the electrical and thermal properties of materials?
A. The atomic weight expressed in grams per gram-atom
B. The electrons, particularly the outermost ones
C. The magnitude of electrical charge of the protons
D. The weight of the atoms
B
110
What is the effect of Phosphorus in cast iron?
A. Softens iron and increase ductility below 3,25%, hardness iron above 3.25% and increases acid and corrosion resistance above 13%
B. Deoxidize molten cast iron
C. Reduced hardness by combining with sulfur below 0.5% and increase hardness above 0.5%
D. Increase fluidity and lowers melting temperature
D
111
A plane intercepts the coordinate axis at h = ½. K = 1, and P= co. What are the Miller indices of the plane?
A. (012)
B. (210)
C. (221)
D. (410)
B
112
The-molecules of the same composition, what are variations of atomic arrangement know as
A. Isomers
B. Polymers
C. Noncrystalline structures
D. Monomers
A
113
What impurity in steel can cause "red shortness" which means the steel becomes unworkable at high temperature?
A. Sulfur
B.Silicon
C. Phosphorus
D. Magnesium
A
114
It is the ratio molecular weight of a polymer to the molecular weight of a single monomer.
A. Linear polymer
C. Degree of thermosetting
B.Degree of polymerization
D. Copolymer
B
115
Compressive strength of fully cured concrete is most directly related to
A. sang-gravel ratio
C. water-cement ratio
B. fineness modulus
D. aggregate gradation
C
116
When an air entrainment agent is introduced into a concrete mix
A. the strength will increase
B. the strength will decrease
C. the strength will not be affected
D. the water/cement ratio must be reduced from 10-15%
A
117
Which of the following may be the Poison ratio of a material?
A. 0.45
B. 0.50
C. 0.60
D. 0.85
A
118
What is the S.I. unit of thermodynamic temperature?
A. centigrade
B. farenheit
C. kelvin
D. rankine
C
119
Prefix "peta" refers to
A. 10 to the negative 15th power
B. 10 to the negative 18th. power
C. 10 to the positive 15th, power
D. 10 to the positive 18th, power
C
120
Relative dielectric strengths of gases tend with increasing molecular weight?
A. sideward
C. upward
B. no movement
D. downward
C
121
It is the maximum frequency, which the human ear can hear.
A. 35,000 Hz
B. 40,000 HZ
C. 10,000 Hz
D. 20, 000 Hz
D
122
Loudness of sound proportional to the square of
A. intensity
B. vibration
C. amplitude
D. frequency
C
123
Electromagnetic waves are refracted when they ____
A. pass into a medium of different dielectric constant
B. are polarized at right angles to the direction of propagation
C. encounter a perfectly conducting surface
D. pass through a small slot in a conducting plane
A
124
The emission of electrons from matter by electromagnetic radiation of certain energy is ____
A. Seebeck effect
B. Photoelectric effect
C. Doppler effect
D. Photovoltaic effect
B
125
The ratio of electric flux density to electric field intensity is called of the medium.
A. permeability
B. permittivity
C. reluctance
D. capacitance
B
126
Wave propagation in perfect dielectric occurs ___.
A. with attenuation
B. without attenuation
C. Either of the above
D. None of the above
B
127
For perfect match between transmission line and load, the value of reflection coefficient, " should be?
A. Zero
B. Unity
C. between zero and one
D more than unity
A
128
The relationship between standing wave ratio, SWR and reflection coefficient, of a transmission line is
SWR = (1+r) / (1-r)
129
The electromagnetic and electrostatic fields radiated by an antenna are out of phase
A. 90 deg.
B. 180 deg
C. 45 deg.
D. 120 deg.
A
