ESAS TRIVIA 24

Which of the following does cold-working cause?

elongation of grains in the flow direction, an increase in dislocation density and an overall increase in energy of the metal

Which of the following statements is FALSE?

Addition of small amounts of silicon to steel can cause a marked decrease in yield strength of the steel

The potential difference between each ends of a 2 meter stick that is parallel to a uniform electric field is 400V. The magnitude of the electric field is

200 N/C

A container holds 6g of CO₂ at 150°C and 100 KPa pressure. How many grams of CO₂ will it hold at 30°C and same pressure?

8.38 g

The density of helium is 0.1786 kg/m³ at STP. If a given mass of helium at STP is allowed to expand to 1.5 times the initial volume by changing the temperature and pressure what will be the resultant density?

0.1191 kg/m³

A nugget of gold and quartz weighs 100g and has a density of 6.4 g/cm³. The density of gold is 19.3 g/cm³ and that of quartz is 2.65 g/cm³. Determine the weight of gold in the nugget.

68g

An electrical equipment is purchased at cost of 10000P. It has a 10 yr life and salvage value of 500P. What is the straight line depreciation?

950

A mine is for sale. A mining engineer estimates that at the current production levels the mine will yield an annual net income of 800000P for 15 years after which the mineral will be exhausted. If an investors MARR is 15%, what is the maximum amount he can bid on this mine?4.677M

4.677M

Why are dams built thicker on the bottom?

to withstand the high pressure of the liquid at the bottom

A simply supported beam is loaded with a concentrated load W at mid-span. Find the maximum bending moment.

WL/4

In Matlab, what is the command used for prompt?

>>

How is material usage variance defined?

(actual quantity – std. quantity) std. price

What built-in definition does i have?

basic imaginary unit

A person sits in a chair 3m from the wall on which hangs a plane mirror. Three meters directly behind him stands a woman 1.6m tall. What minimum height of plane mirror on the wall will enable him to see the woman’s full height?

0.53m

Which of the following is NOT a characteristic of a project?

repeat itself every month

What is the term for a high-speed memory used to store a small amount of data temporarily so that the data can be retrieved quickly?

scratchpad memory

What is the language used in making an internet web page?

Hypertext Mark-up Language (HTML)

What is the meaning of USB?

universal serial bus

What is rapture strength?

stress & Failure

In a stress test, near the elastic limit zone

tensile stress decreases at faster rate

Which of the following is NOT a method used for truss analysis?

method of transmissibility

Which of the following adds head to the system?

centrifugal pump

What bond exist in sharing electron?

covalent bond

What is the strong bond in atoms?

primary bond

What is the term for conversion of asset to cash quickly?

liquidity

It is the amount paid for the used of borrowed capital.

interest

A type of computer memory circuit that holds data, program, instruction and operating system while computer is on

random access memory(RAM)

What is the temperature when degree Kelvin is equal to degree Fahrenheit?

574

In an attempt to identify a rock specimen, a field geologist weigh a sample in air and while immersed in water by using a simple improvised equal arm balance. She obtains measurement of 120g and 78g. What is the specific gravity of the sample?

2.86

A hydraulic jack consists of a large cylinder of area A connected to a small cylinder of area a. Both cylinders are filled with oil. When force F is applied to the small cylinder the resulting pressure is transmitted to the large cylinder, which then exerts an upward force F. Suppose a car weighs 12000N rests on the large cylinder of area 0.10m². what force must be applied to the small cylinder of area 0.002m² in order to support the car?

240 N

A home has a brick wall 15mm thick. On a cold winter day, the temperature of the inner and outer surfaces of the wall are found to be 20°C and -12°C respectively. There is 120 in² of exterior wall space. The thermal conductivity of brick is 0.711 J/m-s-°C. Most nearly how much heat is lost through the wall per hour?

660 MJ

Referring to burning of waste and other materials, excavation, quarrying, construction and other activities of the same nature and character, which are performed partially or wholly inside the powerline corridor, which threaten or endanger the continuous and uninterrupted conveyance of electricity.

Hazardous activities

Chlorine gas is evolved at the anode of a commercial electrolysis cell at the rate of 3.65 L/min, at a temperature of 647°C. On its way to the intake pump, it is cooled to 63°C. Calculate its rate of intake to the pump assuming the pressure has remained constant.

1.33 L/min

How would you plot multiple graphs in MATLAB?

using the hold function

In MATLAB which command shall be used to display multiple axes?

tiledlayout

The current in electric circuit will take which of the following paths to return to the source.

the path of least resistance

A pump receives 8 kg/s of water at 220 kPa and 110°C and discharges at 1100 kPa. Compute the power required in kW.

7 kW

Which of the following statement is FALSE?

Reynolds number is the ratio of viscous force to the inertial force

Drawing of Copper and wire is the property of metal called

IV

Which of the following define the characteristic of tool steel.
I-hardness II-wear resistance III-toughness IV-heat resistance

II, III and IV

Which of the following will correctly define x, y, and z as symbols in MATLAB?

syms xyz

In MATLAB, what is the use of profiler track?

execution time

What is the republic act that is for energy efficiency and conservation Act?

R.A 11285

It is the republic act which is for Anti Electricity, Electricity lines Transmission Lines Materials fitness test

R.A 7832

Reactions generally proceed faster at higher temperature because of which of the following?

both a and b

While frying fish the oil on the pan caught fire, what will you do?

put the lid on the pan

Which of the following does not belong to triangle of fire.

water

Which of the following is correct in calculating the ampacity of feeder conductor for motors,

125% of the full load current of the largest meter plus the full load currents of the small motors

Disconnecting means should be 115% of the full load current is covered by

wiring design rule

Three hundred yards is nearest to how many meters?

275 m

Are receptacle allowed to be placed under a bathtub or directly over a slower stall?

never

In a swimming pool, underwater luminaires which is more than ______ voltage must be GFCI protected

15 V

What is the minimum age for Professional Electrical Engineer (PEE)?

25

Which of the following is known as alternating current low-voltage contact limit.

15

In a quasi-equilibrium process, the pressure in the system is?

is everywhere constant at an instant

A==B

Which statements is true about the sparse matrices?

sparse matrices always use less memory than their associated full matrices

What is the set of possible values that a may contain?

a = randi([10,11,10]);
a(3) = 11;
a(a>2) = 12;

1,2,12

The density of oxygen is 1.43 g/L at STP. What is the density of oxygen at 7°C and 700 torr?

1.24

During a fire, the gases in a room will expand and can eventually break out of tight-fitting windows. Suppose a room 10 ft by 12 ft with a 7 ft ceiling originally at 1 atm and 25°C (room/lab conditions) begins to burn, the temperature in the room rises to 400°C (approximately 750°F), what will be the amount of pressure exerted by the heated air (no change in volume, yet)?

2.26 atm

What is the annual rate of simple interest if 2655 is earned in four months on an investment of 15000$?

5.3%

At what annual interest rate is 500$ one year ago equivalent to 600$ today?

20%

How many years will it take for an investment to double if the interest rate is 8% per year compounded annually?

9 yrs

Fax machine use the process that takes 2-dimensional image and convert it to an electrical signal that can be transmitted over a telephone line is called

modulation

Printed documents to be transmitted by fax are converted into electrical signals by the process of

scanning

What is the radius of conduit bond with respect to the diameter of conduit ______ times the diameter.

3-8

As per RA 11361, is there a need to ask permit to cut trees in transmission line corridor. (IRR for RA11361 Sec 3C)

No

How many electrical personnel are needed for high-voltage testing?

2

As per RA 7920 (the new electrical engineering law), how many exam retakes are allowed for an examinee who failed in one subject or two subjects in the Registered Electrical Engineers Licensure Examination (REELE)?

unlimited

A machine costs 7000P 4yrs ago and the salvage value will be 1000P 2yrs from now. Find its book value now?

3000P

It is the defect that can be seen by optical or electron microscope.

aberration

Find the Young’s modulus of brass rod of diameter 25mm and 250mm long. When subjected to a tensile load of 50 kN it extends by 0.3mm.

84.88 GPa

Which one refers to the specific conductor between the terminals of the service equipment and a point outside the bldg. clear of any obstruction?

service entrance conductor

It is the wiring system that leads from the final overcurrent protecting device (circuit breaker or fuse) to the outlet or group of outlets.

branch circuit

What is the reason to save MAT-file using V-7.3 flag?

to include a variable greater than 2GB

As per RA 11285 (Energy Efficiency and Conservation Act) the establishment consuming 500k to 4M kWh per year is classified as

type 1

As per RA 11285 (Energy Efficiency and Conservation Act) the establishment consuming more than 4M kWh per year is classified as

type 2

What is the Anti-Obstruction of Power Lines Act?

RA 11361

As per RA 11361, it refer to a structures, buildings and buildings of whatever kind, whether temporary or permanent in character and regardless of purpose for which they are intended, which are located, partially or wholly, inside the Power Line corridor which threaten or endanger the continuous and uninterrupted conveyance of electricity is called

Hazardous Imporvements

As per RA 11361, it refers to any hazardous activity or hazardous improvement and other similar circumstances that threaten or endanger the continuous and uninterrupted conveyance of electricity is called

power line obstruction

It is the republic act that pertains to strengthening compliance with OSHS and providing penalty for violations.

RA 11058

The penalty for 1st offense violation of RA 11361 is

both a and b depending on the court

What is JCEC?

Joint Congressional Energy Commission