ESAS REFRESHER 3

premopremo remo · 75問 · 2年前

通報

問題一覧

What refers to a slender member which prevents parts of a structure moving to each other under compressive force

Strut

What is structural member supported horizontally and carries transverse loading?

Beam

If a horizontal force of 100 N was needed to keep an object weighing 270 N sliding at a constant speed over a horizontal surface, then what was the coefficient of sliding friction?

0.37

A man driving a car a 45 mph suddenly sees an object in the road 60 feet ahead. What constant deceleration is required to stop the car in this distance

-36.3 ft/sec^3

A projectile is fired at an angle of 70 deg, with the horizontal with an initial velocity of 520 m/sec. How high can it travel after 3 seconds?

1422 m

A woman stands on a bathroom scale in an elevator that is not moving. The scale reads 450 N. The elevator then moves downward at a constant velocity of 4,5 m/sec. What does the scale reads while the elevator descends with constant velocity.

450 N

A lead hammer weighs 10 Ibf. In one swing of the hammer, the nail is driven 0.6 inches into a wood block. The velocity of the hammer's head at impact is 18 ft/sec. What is the average resistance of the wood block?

1010 lbf

An electric motor takes 5 Amp from a 220 Volt line. Determine the energy in kWh if the supplied to the motor in 2 hours.

2.2

Which of the following refers to the parallel axis theorem for second moment area for strength of materials?

Steiner's theorem

The three moment equation may be used to analyze

a continuous beam

The shape of the bending moment diagram over the length of the beam, having no external load is always

linear

Which of the following is the allowed value for Poisson ratio of a material

0.35

What force is required to punch a 0.75-inch circular hole through a piece of 5/8-inch thick steel plate? The ultimate shear strength is 42 ksi.

61,850 lbs

What is the change in length (in cm) of a steel bar that is heated to 125°C, where coefficient of expansion for steel = 12 micro-cm/cm/°C and a length = 3 m?

0.45

A solid steel shaft 5 m long with diameter of 0.104 m is stressed to 60 MPa when twisted through 4° Determine the power that can be transmitted by the shaft at 20 rps.

1.66 MW

A cantilever wooden mast 12 m high tapers linearly from 20 cm diameter at the base to 10 cm diameter at the top. If the ultimate strength of the material of the mast is 35 MN/sq m. Calculate the magnitude of the load which will cause failure.

1933 N

An external pressure exerted on a fluid is transmitted uniformly throughout the volume of the fluid. This statement is known as

Pascal's principle

What is the device used to determine the specific gravity of the liquids?

Hydrometer

Where does the Moody diagram for friction factors for pipe flow come from?

Experimental results for viscous fluids

Under what conditions is mass conserved in fluid flow?

It is always conserved

An instrument use to measure pressure commercially?

Bourdon gauge

Just behind the dam, the lake is 12 m deep. What is the water pressure at the base of the dam?

118 kPa

A bubble at the bottom of the sea has thrice the volume as it reaches the surface. How deep is the sea? Take sp. gr. of sea water 1.03.

20.06 m

The Reynolds number of a sphere falling in air is 1x10. If the sphere's radius is 1 ft, what is its velocity? (pair = 0.00234 slug/ft³, µ air = 3.8 x10 lbf-sec/ft

81.2 ft/sec

A turbine is rated at 600 top when the flow of water through it is 0.61m ^ 2 / s * e . Assuming an effciency of 87%, What head is acting on the turbine

86 m

What is the transfer of heat due to motions of a fluid near the surface of an object?

covention

What would be the most important factor under consideration for the site selection of a thermal plant?

Availbility of water

The Space required of a steam power station

More than diesel power station

What refers to the measure of the disorder present in a given substance or system

Entropy

Which of the following in the thermodynamics is considered as the heat content of a system?

Enthalpy

Which of the following would be identified with control volume in thermodynamics?

Filling a tire with air at a service station

In a combustion chamber, fuel is burned to raise the temperature of the medium prior to production of work through an expansion process. The heat generated during the combustion reaction is the ______

heat of reaction

Determine the atmospheric pressure in kPa at a location where the barometric pressure is 740 mm Hg and the gravitational acceleration is 9.81m /sec^ ^ 2. Assume the temperature of the mercury to be 10 degree C at which its density is 13,570 kg/cu m

111.58

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

A piston cylinder contains air at 600 kPa, 290K and a volume of 0.01 m ^ 3 A constant pressure process gives 54 kJ of work out. Find the final temperature of air, in K.

2,900

A piston cylinder contains 3 kgs of air 20°C and 300 kPa. It is now heated up in a constant pressure process to 600K. Find the work in the process, in kJ when R = 0.287

264

Given COP of 4, and Q_{L} of 20000kJ / h * r what is the approximate horsepower

A description of the arrangements of atoms or ions in a material is called

structure

Which of the following reason's why reactions generally proceed faster at higher temperature? I. The molecules collide more frequently II. The activation energy is less

both I and II

In the periodic table of elements, which ONE of the following is light metal?

Potassium

The state How is "molality" defined?

The number of moles of solute in 1000 g of solvent

The number of molecules in 22.4 liters (under standard conditions) of a substance in its gaseous state, is called

Avogadro's number

In a mixed gas such as air, the rms speeds of different molecules are

inversely proportional to square root of molecular mass

A friend suffering from the flu has a fever and her body temperature is 101.5 oF, What is her temperature in oC?

38.60C

The gauge pressure in a car tire is 305 kPa when its temperature is 15°C. After running at high speed, the tire has heated up and its pressure gauge is 360 kPa. What is then the temperature of the gas in the tire? Assume atmospheric pressure to be 101 kPa

54°C

On a hot day, the temperature rises from 13 C in the moming to 37 %C in the afternoon. What is the ratio of concentration in (mol/L) of helium in the spherical balloon in the afternoon to the concentration of helium in the morning?

0.92

What is a ccal that has been previously burned in an oxygen-poor environment?

Coke

What type of steel hardening does not require a quench?

Nitriding

Which one of these statements is TRUE for twinning?

It occurs at lower shear stresses than slip.

Which of the following cast iron is heat-treated for ductility

Malieable

Which of the following is NOT a structural class of steel?

Tool and die

Objects that emits their own light are called _______bodies.

luminated

Find the rate of conduction heat transfer in W /m^ prime prime 2 through a 1.5 cm thick hardwood board, k = 0.16 w / m - K with a temperature difference between the two sides of 20 degree

213

A surfer floats on quiet water (n = 1.33) waiting for a big wave. A shark swims toward him at a depth of 4 m. How close (horizontally) can the shark approach before the surfer can spot him? The surfer is lying on his board with his eyes close to water level.

4.6 m

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 the mirror required.

L = 1/2 h

A 25-candle power lamp is placed 10 ft from screen. At what distance from the opposite side of the screen should a 36-candle power lamp be placed in order that the two sides of the screen may be equally illuminated?

12 ft

A 1.2 'IF capacitor is charged 3 kVolt. What is the energy stored in the capacitor

5.4 J

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 5 * 10 ^ - 5 ohm-meter?

22.44 mm

Which of the following portion of hard disk space served as RAM?

Virtual memory

Which of the following types of memory is used for cache memory

SRAM

The Pentium ______ bit microprocessor that was introduced by intel on March 22, 1993, as the very first CPU in the Pentium brand

The Central Processing Unit of computer is a combination of

Arithmetic logic and control unit

What is in a machine that it is capable of absorbing and organizing new data, learning new concept, reasoning logically and responding to inquiries?

Artificial intelligence

It is an informal website publishing on the World Wide Web that consist of discrete, often informat diary style test entries which are displayed in reverse chronological order, so the most recent post appears first at the top of the web page.

Blogging

Multiplying 912) base 8 by (111) base 2 in Hexadecimal base 16 is?

W, X, and Y are Boelean variables. W and X are inputs to an AND gate and its output combines with Yin another AND gate resulting in Z. What values of W, X, and Y will result in Z = 1?

1,1,1

Where is the error in the following FORTRAN program? 670 READ L.M.N 680 DATA 33 40 60 690 PRINT L+M/N 700 PRINT L*N+M 800 END.

line 680

Which of the following memory modules with 72 pins?

SIMM

This MATLAB command clears all data and variables stored in memory

clear

Which of the following is NOT a pre-defined variable in MATLAB

inf

What does MATLAB stands for?

Matrix Laboratory

Which software provides automation in Electrical Power System?

Pspice

What is the interest occurred over the interest period is also subject to the interest rate in the next period?

compound interest

What must two investments with same present worth and unequal lives have?

different equivalent uniform annual cash flow

Which of the following situations has a conventional cash flow so that an internal rate of return can safely be calculated and use?

You invest in a safe dividend stock and receive a dividend each year

When using net present worth calculations to compare two projects, which of the following could invalidate the calculation?

Evaluating over different time periods

Who is responsible for ensuring that the project is completed successfully as measured by time, cost, performance and stakeholder satisfaction

Project manager

It refers to the process of designing and implementing an optimal program of purchasing generating, and consuming various type of energy based on the end user's overall short term and long-term management program

Energy Management

It is the process of unifying the power of technology with entrepreneurial skills and capabilities.

Techonopreneurship

Which is more desirable? I. Investing Php 2,000 at 6% per year compounded interest for three years. II. Investing Php 2,000 per year simple interest for three years.

How long will it take the money to double itself if invested at 5% compounded annually

14.2 yrs

An economy is experiencing inflation at a rate of 6% per year. An item presently cost P 1,000. If the 6% inflation rate continues, what will be the price of this item in 5 years?

P 1,338.23

Consider a project that involves the investment of P100,000 now and P100,000 at the end of the year 1. Revenues of P150,000 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%?

P69,500

A company must relocate one of its factories in three years. Equipment for the loading dock is being considered for purchase. The original cost is P20,000, the salvage value after three years is P8,000. The company's rate of return (i) on the money is 10%. Determine the capital recovery rate (CR) per year.

P5625/year

In the Registered Electrical Engineer (REE) licensure exam, the weight of Engineering Sciences and Allied Subjects (ESAS) is

30%

The Chairman and members of the Board of Electrical Engineering are appointed by

President of the Philippines

Who is the present chairman of the board of Electrical Engineering?

Francis Mapile

Rule 7 IRR of R.A. 7920 is?

Assignment of Duties

In R.A. 7920, IRR rule 2(d) is defining?

Board Board of Electrical Engineering

In a Rigid Metal Conduit (RMC) wiring, conduits shall be supported at least every mm.

3000

Which of the following is CORRECT regarding the sizing of the rating of overcurrent protective device of a circuit?

125% of the continuous load plus 100% of the non-continuous load

What is the MAXIMUM number of overcurrent devices for a lighting and appliance that can be installed in a single cabinet?

The "earth" best defines of which of the following term?

ground

Protection used for personnel against electrical shock is

GFCI

Which of the following is "Murang Kuryente Act"?

R.A. 11371

It is also referred to as "Anti-Obstruction of Power Lines Act

R.A. 11361

Under OSHS Rule 1040, a work place with less than 100 worker is under what type and composition of Health and Safety.

Type D

OSHS Rule number for Electrical safety is

1210

In R.A. 9136, what does PSALM mean?

Power Sector Assets and Liabilities Management Corporation

DC CIRCUITS POWERLINE

DC CIRCUITS POWERLINE

75問 • 2年前

premopremo remo · 100問 · 2年前

AC CIRCUIT POWERLINE

AC CIRCUIT POWERLINE

100問 • 2年前

premopremo remo · 80問 · 2年前

DC CIRCUIT SUPPLEMENTARY PROBLEMS

DC CIRCUIT SUPPLEMENTARY PROBLEMS

80問 • 2年前

premopremo remo · 88問 · 2年前

AC CIRCUIT PASS REVIEWER

AC CIRCUIT PASS REVIEWER

88問 • 2年前

premopremo remo · 50問 · 2年前

AC CIRCUIT PART 8 PINOYBIX

AC CIRCUIT PART 8 PINOYBIX

50問 • 2年前

premopremo remo · 20問 · 2年前

AC CIRCUIT PART 1 PINOYBIX

AC CIRCUIT PART 1 PINOYBIX

20問 • 2年前

premopremo remo · 80問 · 2年前

DC MACHINES POWERLINE REVIEWER

DC MACHINES POWERLINE REVIEWER

80問 • 2年前

premopremo remo · 64問 · 2年前

AC MACHINES (ALTERNATOR) POWERLINE REVIEWER

AC MACHINES (ALTERNATOR) POWERLINE REVIEWER

64問 • 2年前

premopremo remo · 63問 · 2年前

POLYPHASE POWERLINE REVIEWER

POLYPHASE POWERLINE REVIEWER

63問 • 2年前

premopremo remo · 59問 · 2年前

AC CIRCUIT POWERLINE SUPPLY

AC CIRCUIT POWERLINE SUPPLY

59問 • 2年前

premopremo remo · 54問 · 2年前

AC MACHINES (TRANSFORMER)

AC MACHINES (TRANSFORMER)

54問 • 2年前

premopremo remo · 32問 · 2年前

CIRCUIT TRANSIENT POWERLINE

CIRCUIT TRANSIENT POWERLINE

32問 • 2年前

premopremo remo · 92問 · 2年前

POWERSYSTEM POWERLINE

POWERSYSTEM POWERLINE

92問 • 2年前

premopremo remo · 61問 · 2年前

POWERLINE REVIEWER POWERPLANT

POWERLINE REVIEWER POWERPLANT

61問 • 2年前

premopremo remo · 45問 · 2年前

AC MOTORS SUPPLEMENTARY

AC MOTORS SUPPLEMENTARY

45問 • 2年前

premopremo remo · 40問 · 2年前

POWERSYSTEM SUPPLYMENTARY

POWERSYSTEM SUPPLYMENTARY

40問 • 2年前

premopremo remo · 42問 · 2年前

ALGEBRA

ALGEBRA

42問 • 2年前

premopremo remo · 33問 · 2年前

ANALYTIC GEOMETRY

ANALYTIC GEOMETRY

33問 • 2年前

premopremo remo · 23問 · 2年前

TRIGONOMETRY

TRIGONOMETRY

23問 • 2年前

premopremo remo · 28問 · 1年前

HYDRAULICS/

HYDRAULICS/

28問 • 1年前

premopremo remo · 7問 · 1年前

STRENGTH OF MATERIALS

STRENGTH OF MATERIALS

7問 • 1年前

premopremo remo · 46問 · 1年前

ENGINEERING MECHANICS

ENGINEERING MECHANICS

46問 • 1年前

premopremo remo · 25問 · 1年前

AC MACHINES (MOTOR)

AC MACHINES (MOTOR)

25問 • 1年前

premopremo remo · 47問 · 1年前

ENGINEERING ECONOMY

ENGINEERING ECONOMY

47問 • 1年前

premopremo remo · 50問 · 1年前

THERMODYNAMICS

THERMODYNAMICS

50問 • 1年前

premopremo remo · 59問 · 1年前

APPLIED PHYSICS AND ELECTROMAGNETICS

APPLIED PHYSICS AND ELECTROMAGNETICS

59問 • 1年前

premopremo remo · 47問 · 1年前

GENERAL CHEMISTRY AND MATERIAL SCIENCE

GENERAL CHEMISTRY AND MATERIAL SCIENCE

47問 • 1年前

premopremo remo · 62問 · 1年前

PEC 2017

PEC 2017

62問 • 1年前

premopremo remo · 69問 · 1年前

ESAS 2 EVAL

ESAS 2 EVAL

69問 • 1年前

premopremo remo · 55問 · 1年前

ESAS 3 EVAL

ESAS 3 EVAL

55問 • 1年前

premopremo remo · 25問 · 1年前

ESAS 1 EVAL

ESAS 1 EVAL

25問 • 1年前

premopremo remo · 93問 · 1年前

EE1 CIRCUITS

EE1 CIRCUITS

93問 • 1年前

premopremo remo · 93問 · 1年前

EE 2 MACHINES EVAL

EE 2 MACHINES EVAL

93問 • 1年前

premopremo remo · 93問 · 1年前

PASS BOARD EXAM

PASS BOARD EXAM

93問 • 1年前

premopremo remo · 98問 · 1年前

MATH PRE BOARD POWERLINE

MATH PRE BOARD POWERLINE

98問 • 1年前

premopremo remo · 3回閲覧 · 100問 · 1年前

EE POWERLINE PREBOARD

EE POWERLINE PREBOARD

3回閲覧 • 100問 • 1年前

ESAS POWERLINE PREBOARD

ESAS POWERLINE PREBOARD

ESAS OBJECTIBE TYPES

ESAS OBJECTIBE TYPES

EE MODULE 1

EE MODULE 1

premopremo remo · 74問 · 1年前

EE MODULE 2.2

EE MODULE 2.2

74問 • 1年前

MATH MODULE 2

MATH MODULE 2

MATH MODULE 2 101

MATH MODULE 2 101

premopremo remo · 54問 · 1年前

MATH MODULE 2 102

MATH MODULE 2 102

54問 • 1年前

ESAS MODULE 1

ESAS MODULE 1

ESAS MODULE 4

ESAS MODULE 4

ESAS MODULE 4.2

ESAS MODULE 4.2

premopremo remo · 15問 · 1年前

ESAS MODULE 4.3

ESAS MODULE 4.3

15問 • 1年前

EE MODULE 3

EE MODULE 3

EE MODULE 2

EE MODULE 2

premopremo remo · 99問 · 1年前

EE REFRESHER 4

EE REFRESHER 4

99問 • 1年前

premopremo remo · 98問 · 1年前

MATH REFRESHER 4

MATH REFRESHER 4

98問 • 1年前

ESAS REFRESHER 4

ESAS REFRESHER 4

MATH FLASHING

MATH FLASHING

premopremo remo · 39問 · 1年前

MATH FLASHING 1.2

MATH FLASHING 1.2

39問 • 1年前

premopremo remo · 32問 · 1年前

MATH MULTIVECTOR

MATH MULTIVECTOR

32問 • 1年前