Powerline - ESAS OBJECTIVES
If the mass on a body were doubled, its acceleration due to gravity would be ____.
Doubled
Halved
Unchanged
Four time
Device used to measure velocity of a liquid?
Venturi meter
Manometer
Bourdon gauge
Pitot tube
On doubling the speed N, of a centrifugal pump, all of the ff are true EXCEPT:
Volume flow rate, Q is increased by a factor of 2
Head, H is increased by factor of 4
Horsepower, P is increased by factor of 8
Head, horsepower and volume flow rate are independently variable
A hygrometer is an intrument to measure
Relative density of liquids
Viscosity
Relative humidity
Atmospheric pressure
What is the charge of elements that belongs to group 2A (llA)
+1
-1
+2
-2
In electrolysis, the anions migrate to the anode. WHich of the follwoing ions migrate to the other electrode?
Acidic ions
Neutral ions
Basic ions
Cations
How many atoms are in the unit cell of a FCC structure?
1
2
3
4
What is the ASTM tension testing designation for standard methods for steel products?
A370
E345
E870
C674
What is the ASTM tension testing designation for standard methods for ceramic products?
A370
E345
E870
C674
What is the generic name of a class polymer which is commercially known as nylon?
Polyacetals
Polyamide
Cellulose
Polyester
Which of the following bus has a function of directing memory and I/O devices transfer?
Data
Device
Address
Control
Which of the follwoing user-defined header file used in C++?
Hg
Cpp
H
Hf
What is Rule 11 in R.A. 7920?
Action on Communication
Places and Dates of Communication
Program of Examination
Publication of Examination
PEC part 2, 2020 Edition is the ___
3rd edition
4th edition
5th edition
6th edition
In R.A. 11361, the Prevention and Removal of Power Line Obstruction on Private Property is what section?
Sec. 9
Sec. 10
Sec. 8
Sec. 7
Which of the following is TRUE for water at a reference temperature when enthalpy is zero?
Internal energy is negative
Entropy iz zero
Specific volume is zero
Vapor pressure is zero
The space required of a steam power station _____
More than Diesel power station
Equal to Diesel power station
Less than Diesel power station
None of the above
What is the combination of laminar flow and turbulent flow?
Laminar flow
Turbulent flow
Critical flow
Transitional flow
What would be the important factor under consideration for the site selection of a thermal plant?
Availability of fuel
Availability of water
Distance from the populated area
Cost and type of land
Modern steam plants works on which of the following cycles?
Carnot
Rankine
Otto
Bell-Coleman
What is the interest occurred over the interest period is also subject to the interest rate in the next period>
Quarterly interest
Compound interest
Simple interest
Annual interest
Rule 7 IRR of R.A. 7920 is?
Enforcement and Execution
Assignment of Duties
Official business wit the commission
Promulgation of decisions
What is the approved date of PEC Part 1,2017 edition?
November 31, 2017
December 2, 2017
January 1, 2018
January 2, 2018
Encryption can provide ALL of the following features of information systems secuirty EXCEPT:
Confidentiality
Integrity
Authenticity
Privacy
Characters in MATLAB are represented in their value in memory?
Decimal
ASCll
Hexadecimal
String
Which software provides automation in Electrical Power Systems?
Pspice
ETAP
PSCAD
EAPT
How many 72-pin SIMMS make up a memory bank of a Pentium systems?
3
1
2
4
What must two investments with same present worth and unequal lives have?
Identical salvage values
Different salvage values
Identical equivalent uniform annual cash flow
Different equivalent uniform annual cash flow
The maximum hardenability of any steel depends on
The carbon content
The grain content
The chemical composition
The alloying elements present
Objects that emits their own light are called ____ bodies
Solar
Luminated
Photovoltaic
Illuminated
Modulus of Resilience is
The same as modulus of elasticity
A measure of materials ability to store strain energy
The reciprocal of modulus of elasticity
A measure of the deflection of a member
Its the point where the buoyant force and centerline intersect each other?
Metacenter
Orthocneter
Centroid
Circumcenter
Which of the following is the most accurate about streamline?
It is a line normal to the velcoity vector everywhere
It is a fixed space in steady flow
It is a path of fluid particle
It is perpednicular to path line
The purpose of nickel in steel alloying is to increase _____.
Brittleness
Toughness, hardness, corrosion resistance and reduce thermal expansion
High-temperature strength
Strength
What type of materials usually has a higher index of refractions?
Lighter materials
Heavier materials
Less dense materials
Denser materials
The grounding impedance shall be installed between ______ conductor and the system
Energized
Grounded electrode
Unbalanced
Balanced
How many degree of freedom does a coin rolling on the ground?
One
Two
Three
Four
The locus of the elevations to which water will rise in a piezometer tube is termed:
The hydraulic gradient
The energy gradient
Stagnation pressure
Friction head
Under what conditions is mass conserved in fluid flow?
The fluid is baratropic
The flow is isentropic
The fluid is incompressible
It is always conserved
Which of the following metals has the highest specific heat capacity?
Aluminum
Bismuth
Copper
Iron
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