ESAS

3回閲覧 • 100問 • 1年前

問題一覧

Cesium (Cs) and sodium (Na) both have the same valnce (+1), yet with chlorine (Cl), cesium has a coordination number of 8 in CsCl, while sodium has a coordination number of only 6 NaCl. What is the main reason for this difference?

Cs is too large to be coordinated by only chloride ions

Which of the following statements regarding organic substance is FALSE?

Organic matter is generally stable at very high temperature

A force F is appplied to the left to an object moving to the right on a horizontal surface where F is larger then static friction

The object must be slowing down

The center of mass of a uniform disk of radius R is located at

The center

Acceleration if defines as

Rate of change of velocity with time

The SI base unit for mass is

Kilograms

Polymers that favor crystallization are least likely to have which of the following?

An atatic configuration of side groups

A rifle of mass M is initially at rest but free to recoil. It fires a bullet of mass m and velocity. After firing, the velocity of the rifle is

mV/m

Reactions generally proceed faster at highe temperatures because of ehich of the following?

Both the molecules collide more frequently and activation of energy is less

A stone thrown from the top of a tall buulding follows a patb that is

Parabolic

A feather ball dropped from rest in vacuum on the moon. The acceleration of the feather is

The same as that of the lead ball

An object is shot from the back of a railroad flatcar moving at 40 km/h on a straight horizontal road. The launcher is aimed upward, perpendicular to the bed of the flatcar. The object falls

On the flatcar

Which of the following statements regarding diffusion in a crystal structure is true?

It often uses an exhange or vacancy mechanism

A bullet short horizontally from a gun

Travel in a straight line

The word done by gravity during the descent of a projectile

Is positive

If a certain car, going with speed v, rounds a level curve with a radius R, it is just on the verge of skidding. If its speed is now doubled, the radius of the tightest curve on the same road with the same force on the car that it can round is

Objects 1 and 2 interact with each other via both conservation anf nonconservative forces. Let K1 and K2 be the kinetic energies, U be the potential energy and E be the thermal energy. If no external agent does work on the objects then

K1 + K2 + U + E is conserved

The shear strain alons a shaft is €=rd@/dx where r is the radius of the shafts centerline and d@/dx is the change of angle of twist with respect to the axis of the shaft. Which of the condition is NOT necessary for the above equation to be valid?

R must be the full radius of the shaft

A boston Red Soc baseball player catches a ball of mass m that is moving toward him with speed v. While bringing he ball yo rest, his hand moves back a distance d. Assuming constant deceleration, the horizontal force exerted on the ball by his hand is

mv2/2d

According to the Bohr model of the hydrogen atom, which of the following statements are TRUE? I. As the electron obits the proton, it constantly radiates light with a frequency equal to its frequency of revolution. II. The electron orbits the proton in certain orbits that can be found by assuming that its angular momentum is quantized. III. Because of the quantization of angular Page 4 momentum, calculations using the Bohr model and those based on classical physics can never give the same result. IV. When an electron orbiting a proton changes states to a lower energy level, the frequency of the radiation given off is proportional to the change in energy. This accounts for the hydrogen spectrum.

II AND IV

What does DMA stand for

Direct Memory Access

A register organized to allow to move left or right is called a

Shift Register

Which of the following memories need refresh?

DRAM

What do you call yhe programs that are used to find out possible faults and their causes?

Diagnostic software

Find the range x of a gun which fires a shell with muzzle velocity v at an angle of elevation @

x = (v^2sin2@)/g

What do you call the translator which taked assembly language program as input snd producr machine kanguage code as output

Assmebler

ASCII stands for

American Standard Code for Information Interchange

EPROM can be used for

Erasing and reconstructing the contents of ROM

The BIOD is the abbreviation of

Basic input output system

URL indicates the path to a certain file on the World Wide Web and is also called the web address. What does URL mean?

Uniform Resource Locator

To determine a qualified applicant, the engineer manager will subject the applicant to a test that is used to measure a person’s current knowledge of a subject?

Performance Test

Which is NOT an element of project management process?

Research and development

Air undergoes a three-process cycle with a P = const: process, a T = const: process, and a V = const: process. Select the correct statement for a piston-cylinder arrangement.

W = 0 for the V = const. process

Clothes are hung on a clothesline to dry on a freezing winter day. The clothes dry due to:

Sublimation

The ratio of lateral strain to longitudinal strain is called ______.

Poisson’s Ration

What is the standard color for safety signages denotes caution and its use is restricted to marking out-of-service equipment which should not be used?What is the standard color for safety signages denotes caution and its use is restricted to marking out-of-service equipment which should not be used?

Blue

What refers to a measure of the cohesive force between adjacent molecules over the entire cross-sectional area of a material?

Tensile Strength

Select an acceptable paraphrase of the Kelvin–Planck statement of the second law.

An engine has to reject heat.

Grounding of service equipment to a grounding electrode is necessary to stabilize the system voltage. I. True II. False

II only

What is the correct units on viscosity?

kg/(s·m)

Select an assumption that is made when deriving the continuity equation ρ₁A₁V₁ = ρ₂A₂V₂.

Steady Flow

Select the incorrect statement of the first law if kinetic and potential energy changes are negligible.

Heat transfer equals internal energy change for a process.

What is the standard color for safety signages to warn of physical hazards ad means caution?

Yellow or striped or checkered pattern of yellow and black

What management function involves orienting personnel in the most effective way and channeling resources?

Directing

The term m∆h in a control volume equation Q∆ - Ws = m∆h:

Includes the work rate due to the pressure forces.

What is the unit of strain?What is the unit of strain?

Unitless

Metal traffic signal poles and handhole covers must be grounded to a suitable grounding electrode to ensure that dangerous voltage on metal parts resulting from a ground fault can be reduced to a safe value. I. True II. False

II only

In computer programming, what are the control structures? I. Sequence II. Selection III. Repetition IV. Processing

I, II and III

FTP is a service which moves a file between computers using the internet. What does FTP stand for?

File Transport Protocol

What is a programming language that enables the development of a program in a much more user-friendly context and is generally from the computer’s hardware components?

High level programming language

In computer data storage, what does RDMA stands for?

Remote Direct Memory Access

A block of wood of specific gravity 0.8 floats in water. What fraction of the volume of the block is submerged?

0.8

HTML formats information so it can be transported on the internet. What does HTML stand for?

HyperText Markup Language

What is a special kind of variable that is used to pass information between the functions and procedures?

Parameter

RAID is a type of storage that can be configured in different ways to provide a redundant copy of files. What does RAID stand for?

Redundant Array of Independent Disks

What refers to the government agency created under Presidential Decree No. 269?

National Electrification Administration

A small block of mass m is placed on a wedge of angle θ and mass M. Friction is negligible. What horizontal force must be applied to the wedge so that the small block does not slide up or down the wedge surface?

F = (m + M)g tan θ

What is the standard color for safety signages is used for radiation hazard?

Purple or combination of purple and yellow

A mechanic tries to remove an engine from a car by attaching a chain to it from a point directly overhead and then pulling sideways with a horizontal force F. If the engine has mass 180 kg, what is the tension in the chain when it makes an angle of 15° with vertical? What is the force F?

1830 N

A block and tackle is a simple machine used to lift heavy weights. For the arrangement shown here, what force F must be exerted to lift a load of weight W.

W/4

DNS can help recognize an IP address used by a domain name. What does DNS stand for?

Domain Name Server

The pilot of a passenger jet with an airspeed of 700 km/h wishes to fly 1400 km due north. To move to the north, the pilot finds he must fly in a direction pointed 10° west of north. If the flight requires 1 h 54 min, what is the wind velocity?

131 km/h

What are the two categories of programming language?

High level and low level

A cylinder is said to be a “thin-walled” cylinder if the ratio of the wall thickness to the internal diameter of the cylinder is less than:

1/10

BIOS controls the computer, telling it what operation to perform. These instructions are on a chop that connects to the motherboard. What does BIOS mean?

Basic Input Output System

A typical jet fighter plane launched from an aircraft carrier reaches a take-off speed of 175 mi/h in a launch distance of 310 ft. Assuming constant acceleration, how long does it take to launch the fighter?

2.4 s

What refers to the government corporation created under Republic Act No 6395?

National Power Corporation

What is a separate piece of code that is call by the main program a specific task?

Method

A _______ provides little to no abstraction of programming concepts and is very close to write actual machine code.

low level programming language

Engineers can become good managers only through ________.

effective career planning

What is the disadvantage of free-rein style of leadership?

Little managerial control and high degree of risk

Service equipment must be grounded to a grounding electrode to ensure that dangerous voltage on metal parts resulting from a ground fault can be removed or be reduced to a safe value. I. True II. False

II only

Java, Pascal, C++, Fortran and Basic are types of ______.

high level programming language

“When one of the factors of production is fixed in quantity or is difficult to increase, increasing the other factors of production will result in a less than proportionate increase in output”. This statement is known as the:

Law of diminishing returns

Select a correct statement of the first law of thermodynamics if kinetic and potential energy changes are negligible.

Net heat transfer equals net work for a cycle.

What refers to the ratio of thermal conductivity of a material to the product of electrical conductivity and temperature?

Wiedemann-Frantz ratio

The standard atmosphere in meters of ammonia (ρ = 600 kg/m³) is:

17 m

What refers to the sum of the strains in the three coordinated directions?

Dilation

What states that “the total electrical resistivity is the sum of the thermal resistivity and the residual resistivity?

Matthiessen’s rule

A set of well-defined logical steps that must be taken to perform a task is called ______.

algorithm

Grounding of metal manhole covers to a suitable grounding electrode ensures that dangerous voltage on metal parts resulting from a ground fault can be reduced to a safe value. I. True II. False

II only

What is the type of annuity where the payments are made at the beginning of the each period starting from the first period?

Annuity due

What kind of stress is caused by a positive moment applied on a beam?

Compressive Stress

Within elastic limit, the volumetric strain is proportional to the hydrostatic stress. What is the constant that relates these two quantities called?

Bulk Modules

What is defined as an organized method of providing past, present, and projected information on internal operations and external intelligence for use in decision-making?

Management Information System

Select an incorrect statement relating to a Carnot cycle.

There are two constant-pressure processes.

A key concept in analyzing the filling of an evacuated tank is:

The enthalpy across a valve remains constant.

A body is subjected to three mutually perpendicular stresses of equal intensity. What refers to the ratio of direct stress to the corresponding volumetric strain?

Bulk Modulus

A ladder 6 m long weighs 120 N. It leans against a smooth wall (negligible friction), making an angle of 50° with horizontal. The coefficient of friction with the floor is 0.5. How far up the ladder can an 800-N worker climb before the ladder starts to slip?

3.67 m

When an object is submerged in the ocean to a depth of 3000 m, the pressure increases by about 3030 N/m². By how much does a piece of aluminum of volume 0.30 m³ decrease in volume when lowered to this depth? The bulk modulus of aluminum is 7 × 10¹⁰ N/m².

– 12 mm³

The period of a simple pendulum is 2 s. What will be the period if the mass and the length of the pendulum string are both doubled?

2.8 s

A stepladder weighs 60 N and each half is 2.0 m long. A brace 1.0 m long (of negligible weight) is connected 0.50 m from the end of each half of the ladder. Assume no friction on the floor. What is the tension in the brace?

7.1 N

______ is the stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation.

Elastic Limit

______ is the stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation.

Aquifer

What management function refers to the process of anticipating problems, analyzing them, estimating their likely impact and determining actions that will lead to the desired outcomes and goals?

Planning

What is a centrifugal pump with one or more impellers discharging into one or more bowls and vertical eductor or column pipe used to connect the bowls to the discharge head on which the pump driver is mounted?

Vertical shaft turbine pump

Abeng and Mary carry a uniform log of length 6 m and weight 150 N. Abeng is 1 m from one end and Mary is 2 m from the other end. What weight does each person support?

Abeng = 50 N, Mary = 100 N

When a closely-coiled helical spring is subjected to an axial load, then the spring is subjected to _____.

Torsion

A mass m resting on a frictionless horizontal table is attached to the end of a spring of spring constant k. The other end of the spring is fixed. The mass is displaced a distance A from its equilibrium position and released from rest. What is the maximum speed of the mass as it oscillates?

v = [sqrt (k/m)](A)

100

What is the unit of modulus of rigidity?

pascal

EE 2

EE 2

EE 3

EE 3

ESAS 2

ESAS 2

ESAS 3

ESAS 3

EE Laws

EE Laws

問題一覧

Cs is too large to be coordinated by only chloride ions

Which of the following statements regarding organic substance is FALSE?

Organic matter is generally stable at very high temperature

A force F is appplied to the left to an object moving to the right on a horizontal surface where F is larger then static friction

The object must be slowing down

The center of mass of a uniform disk of radius R is located at

The center

Acceleration if defines as

Rate of change of velocity with time

The SI base unit for mass is

Kilograms

Polymers that favor crystallization are least likely to have which of the following?

An atatic configuration of side groups

A rifle of mass M is initially at rest but free to recoil. It fires a bullet of mass m and velocity. After firing, the velocity of the rifle is

mV/m

Reactions generally proceed faster at highe temperatures because of ehich of the following?

Both the molecules collide more frequently and activation of energy is less

A stone thrown from the top of a tall buulding follows a patb that is

Parabolic

A feather ball dropped from rest in vacuum on the moon. The acceleration of the feather is

The same as that of the lead ball

An object is shot from the back of a railroad flatcar moving at 40 km/h on a straight horizontal road. The launcher is aimed upward, perpendicular to the bed of the flatcar. The object falls

On the flatcar

Which of the following statements regarding diffusion in a crystal structure is true?

It often uses an exhange or vacancy mechanism

A bullet short horizontally from a gun

Travel in a straight line

The word done by gravity during the descent of a projectile

Is positive

K1 + K2 + U + E is conserved

R must be the full radius of the shaft

mv2/2d

II AND IV

What does DMA stand for

Direct Memory Access

A register organized to allow to move left or right is called a

Shift Register

Which of the following memories need refresh?

DRAM

What do you call yhe programs that are used to find out possible faults and their causes?

Diagnostic software

Find the range x of a gun which fires a shell with muzzle velocity v at an angle of elevation @

x = (v^2sin2@)/g

What do you call the translator which taked assembly language program as input snd producr machine kanguage code as output

Assmebler

ASCII stands for

American Standard Code for Information Interchange

EPROM can be used for

Erasing and reconstructing the contents of ROM

The BIOD is the abbreviation of

Basic input output system

URL indicates the path to a certain file on the World Wide Web and is also called the web address. What does URL mean?

Uniform Resource Locator

To determine a qualified applicant, the engineer manager will subject the applicant to a test that is used to measure a person’s current knowledge of a subject?

Performance Test

Which is NOT an element of project management process?

Research and development

Air undergoes a three-process cycle with a P = const: process, a T = const: process, and a V = const: process. Select the correct statement for a piston-cylinder arrangement.

W = 0 for the V = const. process

Clothes are hung on a clothesline to dry on a freezing winter day. The clothes dry due to:

Sublimation

The ratio of lateral strain to longitudinal strain is called ______.

Poisson’s Ration

Blue

What refers to a measure of the cohesive force between adjacent molecules over the entire cross-sectional area of a material?

Tensile Strength

Select an acceptable paraphrase of the Kelvin–Planck statement of the second law.

An engine has to reject heat.

Grounding of service equipment to a grounding electrode is necessary to stabilize the system voltage. I. True II. False

II only

What is the correct units on viscosity?

kg/(s·m)

Select an assumption that is made when deriving the continuity equation ρ₁A₁V₁ = ρ₂A₂V₂.

Steady Flow

Select the incorrect statement of the first law if kinetic and potential energy changes are negligible.

Heat transfer equals internal energy change for a process.

What is the standard color for safety signages to warn of physical hazards ad means caution?

Yellow or striped or checkered pattern of yellow and black

What management function involves orienting personnel in the most effective way and channeling resources?

Directing

The term m∆h in a control volume equation Q∆ - Ws = m∆h:

Includes the work rate due to the pressure forces.

What is the unit of strain?What is the unit of strain?

Unitless

II only

In computer programming, what are the control structures? I. Sequence II. Selection III. Repetition IV. Processing

I, II and III

FTP is a service which moves a file between computers using the internet. What does FTP stand for?

File Transport Protocol

What is a programming language that enables the development of a program in a much more user-friendly context and is generally from the computer’s hardware components?

High level programming language

In computer data storage, what does RDMA stands for?

Remote Direct Memory Access

A block of wood of specific gravity 0.8 floats in water. What fraction of the volume of the block is submerged?

0.8

HTML formats information so it can be transported on the internet. What does HTML stand for?

HyperText Markup Language

What is a special kind of variable that is used to pass information between the functions and procedures?

Parameter

RAID is a type of storage that can be configured in different ways to provide a redundant copy of files. What does RAID stand for?

Redundant Array of Independent Disks

What refers to the government agency created under Presidential Decree No. 269?

National Electrification Administration

F = (m + M)g tan θ

What is the standard color for safety signages is used for radiation hazard?

Purple or combination of purple and yellow

1830 N

A block and tackle is a simple machine used to lift heavy weights. For the arrangement shown here, what force F must be exerted to lift a load of weight W.

W/4

DNS can help recognize an IP address used by a domain name. What does DNS stand for?

Domain Name Server

131 km/h

What are the two categories of programming language?

High level and low level

A cylinder is said to be a “thin-walled” cylinder if the ratio of the wall thickness to the internal diameter of the cylinder is less than:

1/10

BIOS controls the computer, telling it what operation to perform. These instructions are on a chop that connects to the motherboard. What does BIOS mean?

Basic Input Output System

2.4 s

What refers to the government corporation created under Republic Act No 6395?

National Power Corporation

What is a separate piece of code that is call by the main program a specific task?

Method

A _______ provides little to no abstraction of programming concepts and is very close to write actual machine code.

low level programming language

Engineers can become good managers only through ________.

effective career planning

What is the disadvantage of free-rein style of leadership?

Little managerial control and high degree of risk

II only

Java, Pascal, C++, Fortran and Basic are types of ______.

high level programming language

Law of diminishing returns

Select a correct statement of the first law of thermodynamics if kinetic and potential energy changes are negligible.

Net heat transfer equals net work for a cycle.

What refers to the ratio of thermal conductivity of a material to the product of electrical conductivity and temperature?

Wiedemann-Frantz ratio

The standard atmosphere in meters of ammonia (ρ = 600 kg/m³) is:

17 m

What refers to the sum of the strains in the three coordinated directions?

Dilation

What states that “the total electrical resistivity is the sum of the thermal resistivity and the residual resistivity?

Matthiessen’s rule

A set of well-defined logical steps that must be taken to perform a task is called ______.

algorithm

Grounding of metal manhole covers to a suitable grounding electrode ensures that dangerous voltage on metal parts resulting from a ground fault can be reduced to a safe value. I. True II. False

II only

What is the type of annuity where the payments are made at the beginning of the each period starting from the first period?

Annuity due

What kind of stress is caused by a positive moment applied on a beam?

Compressive Stress

Within elastic limit, the volumetric strain is proportional to the hydrostatic stress. What is the constant that relates these two quantities called?

Bulk Modules

What is defined as an organized method of providing past, present, and projected information on internal operations and external intelligence for use in decision-making?

Management Information System

Select an incorrect statement relating to a Carnot cycle.

There are two constant-pressure processes.

A key concept in analyzing the filling of an evacuated tank is:

The enthalpy across a valve remains constant.

A body is subjected to three mutually perpendicular stresses of equal intensity. What refers to the ratio of direct stress to the corresponding volumetric strain?

Bulk Modulus

3.67 m

– 12 mm³

The period of a simple pendulum is 2 s. What will be the period if the mass and the length of the pendulum string are both doubled?

2.8 s

7.1 N

______ is the stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation.

Elastic Limit

______ is the stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation.

Aquifer

What management function refers to the process of anticipating problems, analyzing them, estimating their likely impact and determining actions that will lead to the desired outcomes and goals?

Planning

Vertical shaft turbine pump

Abeng and Mary carry a uniform log of length 6 m and weight 150 N. Abeng is 1 m from one end and Mary is 2 m from the other end. What weight does each person support?

Abeng = 50 N, Mary = 100 N

When a closely-coiled helical spring is subjected to an axial load, then the spring is subjected to _____.

Torsion

v = [sqrt (k/m)](A)

100

What is the unit of modulus of rigidity?

pascal