問題一覧
1
Strategic planning is undertaken in which management level?
Top management level
2
A situation in which an engineer's loyalty and obligations may be compromised because of self-interests or other loyalties and obligations.
Conflict of interest
3
What term implies the pressure on a gauge in open air, the gauge being connected to a closed pipe?
Gauge pressure
4
Grounding service equipment to a low resistive grounding electrode helps in protecting interior wiring and equipment from lightning damage.
I. True
II. False
II only
5
Expected sets of behavior (etiquette, law, morals, and ethics) between the engineer, other individuals, and society as a whole.
Interaction rules
6
Within elastic limit in a loaded material, stress:
is directly proportional to strain
7
Service equipment is grounded to a grounding electrode to ensure that metal parts, subject to a ground fault, remain at the same potential as the earth.
I. True
II. False
II only
8
What is a vertical turbine pump with the pump and motor closed-coupled and designed to be installed underground, as in the case of a deep well pump?
Submersible pump
9
The suction head of the pump exists when the total suction head is ______.
above atmospheric pressure
10
The instantaneous position of all fluid particles that passes through a given point is known as _____.
streak line
11
A basic part of the centrifugal pump that gives direction to the flow from the impeller and converts this velocity energy into pressure that is usually measured in meters of head.
Casing
12
Which of the following describes shear stress in a moving Newtonian fluid?
Both it is proportional to the absolute viscosity and to the velocity gradient at the point of interest.
13
Water is flowing at a velocity of 5 m/s in a pipe with a radius of 10 in. At the temperature in the pipe, the density and viscosity are as follows: r = 997.9 kg/m³ and µ = 1.131 Pa-s. What is the Reynold’s number for this situation?
2240
14
What device is used to determine the specific gravity of liquids?
Hydrometer
15
The flow in which the paths of the individual particles of fluid do not cross each other.
Laminar Flow
16
The range of specific speed for a radial-type centrifugal pump:
500 to 3000 rpm
17
Which of the following describes a streamline?
I. It is a mathematical concept.
II. It cannot be crossed by the flow.
III. It is a line of constant entropy.
I and II only
18
The ratio of discharge diameter to the inlet eye diameter of impeller for a Francis-type centrifugal pump is _____.
less than 2
19
Which of the following statements about a streamline is most accurate?
It is fixed in space in steady flow.
20
Mechanical losses in centrifugal pumps include the frictional losses in the bearings and packing boxes and are usually taken to be
2% to 4% of the brake power
21
A leak from a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon?
Surface tension
22
It is a single suction pump having its suction nozzle on the opposite side of the casing from the stuffing box and having the face of the suction nozzle perpendicular to the longitudinal axis of the shaft.
End suction pump
23
Which of the following is true for a propeller-type impeller centrifugal pump?
The head developed is due to the push of the vanes and flow is almost entirely axial.
24
A centrifugal pump in which the driving unit is supported by the pump having its suction and discharge flanges on approximately the same center:
In-line pump
25
A pump that takes suction from a public service main or private-use water system for the purpose of increasing the effective water pressure is known as _____.
Booster pump
26
Which is the basis for Bernoulli’s law for fluid flow?
Principle of conservation of energy
27
The surface tension of water in air is approximately 0.0756 N/m. If the atmospheric pressure is 101 kPa (abs), what is the pressure inside a droplet 0.254 mm in diameter?
102.2 kPa (abs)
28
The type of flow in which the velocities of liquid particles in all sections of the pipe or channel are equal, and is generally referred to as flow in channel.
Uniform flow
29
The mechanics of water or other liquids whether at rest or in motion is known as:
Hydraulics
30
A centrifugal pump with one or more impellers discharging into one or more bowls, and vertical or column pipe used to connect the bowls to the discharge head on which the pump drivers is mounted.
Vertical shaft turbine pump
31
The term generally associated with the science of the force exerted by water in motion, such as driving a turbine connected to an electric generator.
Hydrodynamics
32
Which is the originof the enrgy conservation equation used in flow system?
The first law of thermodynamics
33
A device that determins the fluid flow velocity of liquids
Pitot tube
34
A device that is used to determine liquid pressure
Manometer
35
A device that determines air pressure
Barometer
36
The imaginary line tangent to which at any point indicates the direction of motion at that point
Stream line
37
The flow in which the quantity of fluid per unit time is not constant
Unsteady flow
38
A law concerning the compression and expansion of gas at constant temperature
Boyle’s law
39
A law that states “pressure set up in a confined liquid acts equally in all direction, and in right angles to the containi g surfaces”.
Pascal’s Law
40
A law that gases tend to expand when heated at constant pressure
Charle’s law
41
What class is considered to have combustible metals and other metal hazards
Class D
42
What is cgs unit for force?
Dynes
43
The unit Joule can be converted to which of the following?
Pa-m^3
44
What will happen to the frequency of a simple pendulum if you double the mass of the object attached to the cable?
The frequency is the same
45
What color represents the greatest value in terms of wavelength
Red
46
When the distance of an object from a conves mirror is equal to the focal length of the lens
The image is virtual, erect and smaller
47
Which of the following is the Newton’s first law of motion?
Law of inertia
48
How many electrons can occupe an s-orbital?
two
49
Which of the following is most likely to prove that a substance is inorganic?
The substance is heated together with copper oxide and the resulting gases are found to have no effect on limestone.
50
What principle states that “for a horizontal flow of a fluid through a pipe, the sum of the pressure and the kinetic energy per unit volume of the fluid is constant”?
Bernoulli’s principle
51
Each computer programming language uses a different ________. In computer programming languages, this serves the same purpose, defining how declarations, functions, commands, and other statements should be arranged.
syntax
52
Elements in Group IA in the periodic table are:
Alkali metals
53
Normality is defined as the number of ______.
equivalent weights of solute per liter of solution
54
Software programs designed to damage or do otherunwanted actions on a computer system. Refers to "malicious software" and includes viruses, worms and trojan horses.
Malware
55
What management function involves selecting candidates and training personnel?
Staffing
56
What refers to the product of the force and the time during which a force acts?
Impulse
57
What is the common unit used to indicate the mass of a particle?
Atomic mass unit
58
The hydraulic press is an instrument which uses one of the following theorems. Which one?
Pascal’s principle
59
What refers to the rational way to conceptualize, analyze and solve problems in situations involving limited, or partial information about the decision environment?
Decision theory
60
What is used to determine the type of flow of a liquid?
Reynolds number
61
If the specific weight of a liquid is 58.5 lbf/ft³, what is the specific volume of the liquid (in cm³/g)?
1.07
62
Who discovered the electron?
Joseph John Thomson
63
Kinematic viscosity is defined as the ratio of absolute viscosity to _______.
density
64
What is the property of metals that reflect the light that strikes their surfaces, making them appear shiny?
Luster
65
The atomic number of an element is
The number of protons in the nucleus
66
An abbreviation of the language that webpages are written in. Also known as hypertext documents, webpages must conform to the rules of this language in order to be displayed correctly in a web browser. This syntax is based on a list of tags that describe the page's format and what is displayed on the webpage.
HTML
67
What is the “identity number” of an atom?
Atomic number
68
What is the molality of a solution containing 75.5 g sucrose (molar mass = 342 g/mol) in 400.0 g of water?
0.553
69
The hydrometer is used to measure _______.
Density of liquid
70
Large data items are split into ______ for sending across a network.
packets
71
A software program or set of instructions programmed on a hardware device. It provides the necessary instructions for how the device communicates with the other computer hardware.
Firmware
72
An internet protocol address unique for each device connected to a network is called _____.
IP address
73
What refers to the stress at which a material exhibits a specified deviation from proportionality of stress and strain?
Yield strength
74
What refers to the process and procedure for identifying, characterizing, quantifying and evaluating risks and its significance?
Risk assessment
75
What network model enables engineer managers to schedule, monitor, and control large and complex projects by using only one time factor per activity?
Critical path method
76
The specific gravity of mercury relative to water is 13.55. What is the specific weight of mercury in kN/m3?
133
77
What is the specific heat of an unknown substance if the temperature of 30°C doubles after applying an energy rated at 50 kilocalories?
1667
78
Which one is equivalent to the unit “joule”?
Newton-meter
79
What type of materials exhibits high modulus of elasticity?
Hard materials
80
When used to classify metals, the word “refractory” mean it is ____ resistant.
heat
81
What does HDMI stand for?
High-Definition Multimedia Interface
82
What is a measure of rigidity?
Modulus of elasticity
83
“The work done by the net force on a particle equals the change in the particle’s kinetic energy”. This statement is known as ______.
Work-energy theorem
84
What mechanical property of a material which is a time-dependent permanent strain under stress?
Creep
85
What is the increase in length of a steel pipe, 10 m long, if its temperature is doubled from 20°C?
2.34 mm
86
Which of the following represents the maximum shear stress in a thin cylindrical shell subjected to internal pressure p?
pd/8t
87
What is defined as the time rate at which work is done?
Power
88
The property by virtue of which a metal can be beaten into plates is called ______.
Malleability
89
Solid State Drive (SSD):
I. non-volatile storage
II. no moving parts
III. read/write quicker than HDD
IV. low power consumption
I, II, III and IV
90
What is the type of annuity where the payments are made at the end of each period starting from the first period?
Ordinary Annuity
91
What is a reference sheet for the elements that can be used to form engineering materials?
Periodic Table
92
What refers to the techniques that encompass risk assessment and the inclusive evaluation of risk, costs and benefits of alternative projects or policies?
Risk Benefit Analysis
93
What refers to the ratio of the interest payment to the principal for a given unit of time and usually expressed as a percentage of the principal?
Interest rate
94
In which medium do sound waves travel the fastest?
Solids
95
A gas cylinder contains 15 L of oxygen gas at room temperature and 15 atm. The temperature is doubled and the volume is reduced to half of the original volume. What is the final pressure (in atm) assuming the gas resembles ideal condition?
32.05
96
(U + PV) is a quantity called ______.
enthalpy
97
________ are concerned with policy matters and influence the goals and objectives of a business venture.
Personal decision
98
An object is placed 60 cm in front of a diverging lens of focal length –15 cm. A converging lens of focal length 20 cm is placed 10 cm behind the first lens. Where is the final image located, and what is the overall magnification?
-2 inverted
99
In MATLAB, what is %% used for?
Code sections
100
You are in the middle of a long MATLAB session where you have performed many analysis and made many plots. You run the following commands, yet a figure window doesn’t pop up on the top of your screen with your plot. What might be the issue?
x = [-1:0.1:1];
y = X.^2;
plot (x, y)
Your plot is in a figure window that was already open, hidden behind other windows on your screen.
EE
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問題一覧
1
Strategic planning is undertaken in which management level?
Top management level
2
A situation in which an engineer's loyalty and obligations may be compromised because of self-interests or other loyalties and obligations.
Conflict of interest
3
What term implies the pressure on a gauge in open air, the gauge being connected to a closed pipe?
Gauge pressure
4
Grounding service equipment to a low resistive grounding electrode helps in protecting interior wiring and equipment from lightning damage.
I. True
II. False
II only
5
Expected sets of behavior (etiquette, law, morals, and ethics) between the engineer, other individuals, and society as a whole.
Interaction rules
6
Within elastic limit in a loaded material, stress:
is directly proportional to strain
7
Service equipment is grounded to a grounding electrode to ensure that metal parts, subject to a ground fault, remain at the same potential as the earth.
I. True
II. False
II only
8
What is a vertical turbine pump with the pump and motor closed-coupled and designed to be installed underground, as in the case of a deep well pump?
Submersible pump
9
The suction head of the pump exists when the total suction head is ______.
above atmospheric pressure
10
The instantaneous position of all fluid particles that passes through a given point is known as _____.
streak line
11
A basic part of the centrifugal pump that gives direction to the flow from the impeller and converts this velocity energy into pressure that is usually measured in meters of head.
Casing
12
Which of the following describes shear stress in a moving Newtonian fluid?
Both it is proportional to the absolute viscosity and to the velocity gradient at the point of interest.
13
Water is flowing at a velocity of 5 m/s in a pipe with a radius of 10 in. At the temperature in the pipe, the density and viscosity are as follows: r = 997.9 kg/m³ and µ = 1.131 Pa-s. What is the Reynold’s number for this situation?
2240
14
What device is used to determine the specific gravity of liquids?
Hydrometer
15
The flow in which the paths of the individual particles of fluid do not cross each other.
Laminar Flow
16
The range of specific speed for a radial-type centrifugal pump:
500 to 3000 rpm
17
Which of the following describes a streamline?
I. It is a mathematical concept.
II. It cannot be crossed by the flow.
III. It is a line of constant entropy.
I and II only
18
The ratio of discharge diameter to the inlet eye diameter of impeller for a Francis-type centrifugal pump is _____.
less than 2
19
Which of the following statements about a streamline is most accurate?
It is fixed in space in steady flow.
20
Mechanical losses in centrifugal pumps include the frictional losses in the bearings and packing boxes and are usually taken to be
2% to 4% of the brake power
21
A leak from a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon?
Surface tension
22
It is a single suction pump having its suction nozzle on the opposite side of the casing from the stuffing box and having the face of the suction nozzle perpendicular to the longitudinal axis of the shaft.
End suction pump
23
Which of the following is true for a propeller-type impeller centrifugal pump?
The head developed is due to the push of the vanes and flow is almost entirely axial.
24
A centrifugal pump in which the driving unit is supported by the pump having its suction and discharge flanges on approximately the same center:
In-line pump
25
A pump that takes suction from a public service main or private-use water system for the purpose of increasing the effective water pressure is known as _____.
Booster pump
26
Which is the basis for Bernoulli’s law for fluid flow?
Principle of conservation of energy
27
The surface tension of water in air is approximately 0.0756 N/m. If the atmospheric pressure is 101 kPa (abs), what is the pressure inside a droplet 0.254 mm in diameter?
102.2 kPa (abs)
28
The type of flow in which the velocities of liquid particles in all sections of the pipe or channel are equal, and is generally referred to as flow in channel.
Uniform flow
29
The mechanics of water or other liquids whether at rest or in motion is known as:
Hydraulics
30
A centrifugal pump with one or more impellers discharging into one or more bowls, and vertical or column pipe used to connect the bowls to the discharge head on which the pump drivers is mounted.
Vertical shaft turbine pump
31
The term generally associated with the science of the force exerted by water in motion, such as driving a turbine connected to an electric generator.
Hydrodynamics
32
Which is the originof the enrgy conservation equation used in flow system?
The first law of thermodynamics
33
A device that determins the fluid flow velocity of liquids
Pitot tube
34
A device that is used to determine liquid pressure
Manometer
35
A device that determines air pressure
Barometer
36
The imaginary line tangent to which at any point indicates the direction of motion at that point
Stream line
37
The flow in which the quantity of fluid per unit time is not constant
Unsteady flow
38
A law concerning the compression and expansion of gas at constant temperature
Boyle’s law
39
A law that states “pressure set up in a confined liquid acts equally in all direction, and in right angles to the containi g surfaces”.
Pascal’s Law
40
A law that gases tend to expand when heated at constant pressure
Charle’s law
41
What class is considered to have combustible metals and other metal hazards
Class D
42
What is cgs unit for force?
Dynes
43
The unit Joule can be converted to which of the following?
Pa-m^3
44
What will happen to the frequency of a simple pendulum if you double the mass of the object attached to the cable?
The frequency is the same
45
What color represents the greatest value in terms of wavelength
Red
46
When the distance of an object from a conves mirror is equal to the focal length of the lens
The image is virtual, erect and smaller
47
Which of the following is the Newton’s first law of motion?
Law of inertia
48
How many electrons can occupe an s-orbital?
two
49
Which of the following is most likely to prove that a substance is inorganic?
The substance is heated together with copper oxide and the resulting gases are found to have no effect on limestone.
50
What principle states that “for a horizontal flow of a fluid through a pipe, the sum of the pressure and the kinetic energy per unit volume of the fluid is constant”?
Bernoulli’s principle
51
Each computer programming language uses a different ________. In computer programming languages, this serves the same purpose, defining how declarations, functions, commands, and other statements should be arranged.
syntax
52
Elements in Group IA in the periodic table are:
Alkali metals
53
Normality is defined as the number of ______.
equivalent weights of solute per liter of solution
54
Software programs designed to damage or do otherunwanted actions on a computer system. Refers to "malicious software" and includes viruses, worms and trojan horses.
Malware
55
What management function involves selecting candidates and training personnel?
Staffing
56
What refers to the product of the force and the time during which a force acts?
Impulse
57
What is the common unit used to indicate the mass of a particle?
Atomic mass unit
58
The hydraulic press is an instrument which uses one of the following theorems. Which one?
Pascal’s principle
59
What refers to the rational way to conceptualize, analyze and solve problems in situations involving limited, or partial information about the decision environment?
Decision theory
60
What is used to determine the type of flow of a liquid?
Reynolds number
61
If the specific weight of a liquid is 58.5 lbf/ft³, what is the specific volume of the liquid (in cm³/g)?
1.07
62
Who discovered the electron?
Joseph John Thomson
63
Kinematic viscosity is defined as the ratio of absolute viscosity to _______.
density
64
What is the property of metals that reflect the light that strikes their surfaces, making them appear shiny?
Luster
65
The atomic number of an element is
The number of protons in the nucleus
66
An abbreviation of the language that webpages are written in. Also known as hypertext documents, webpages must conform to the rules of this language in order to be displayed correctly in a web browser. This syntax is based on a list of tags that describe the page's format and what is displayed on the webpage.
HTML
67
What is the “identity number” of an atom?
Atomic number
68
What is the molality of a solution containing 75.5 g sucrose (molar mass = 342 g/mol) in 400.0 g of water?
0.553
69
The hydrometer is used to measure _______.
Density of liquid
70
Large data items are split into ______ for sending across a network.
packets
71
A software program or set of instructions programmed on a hardware device. It provides the necessary instructions for how the device communicates with the other computer hardware.
Firmware
72
An internet protocol address unique for each device connected to a network is called _____.
IP address
73
What refers to the stress at which a material exhibits a specified deviation from proportionality of stress and strain?
Yield strength
74
What refers to the process and procedure for identifying, characterizing, quantifying and evaluating risks and its significance?
Risk assessment
75
What network model enables engineer managers to schedule, monitor, and control large and complex projects by using only one time factor per activity?
Critical path method
76
The specific gravity of mercury relative to water is 13.55. What is the specific weight of mercury in kN/m3?
133
77
What is the specific heat of an unknown substance if the temperature of 30°C doubles after applying an energy rated at 50 kilocalories?
1667
78
Which one is equivalent to the unit “joule”?
Newton-meter
79
What type of materials exhibits high modulus of elasticity?
Hard materials
80
When used to classify metals, the word “refractory” mean it is ____ resistant.
heat
81
What does HDMI stand for?
High-Definition Multimedia Interface
82
What is a measure of rigidity?
Modulus of elasticity
83
“The work done by the net force on a particle equals the change in the particle’s kinetic energy”. This statement is known as ______.
Work-energy theorem
84
What mechanical property of a material which is a time-dependent permanent strain under stress?
Creep
85
What is the increase in length of a steel pipe, 10 m long, if its temperature is doubled from 20°C?
2.34 mm
86
Which of the following represents the maximum shear stress in a thin cylindrical shell subjected to internal pressure p?
pd/8t
87
What is defined as the time rate at which work is done?
Power
88
The property by virtue of which a metal can be beaten into plates is called ______.
Malleability
89
Solid State Drive (SSD):
I. non-volatile storage
II. no moving parts
III. read/write quicker than HDD
IV. low power consumption
I, II, III and IV
90
What is the type of annuity where the payments are made at the end of each period starting from the first period?
Ordinary Annuity
91
What is a reference sheet for the elements that can be used to form engineering materials?
Periodic Table
92
What refers to the techniques that encompass risk assessment and the inclusive evaluation of risk, costs and benefits of alternative projects or policies?
Risk Benefit Analysis
93
What refers to the ratio of the interest payment to the principal for a given unit of time and usually expressed as a percentage of the principal?
Interest rate
94
In which medium do sound waves travel the fastest?
Solids
95
A gas cylinder contains 15 L of oxygen gas at room temperature and 15 atm. The temperature is doubled and the volume is reduced to half of the original volume. What is the final pressure (in atm) assuming the gas resembles ideal condition?
32.05
96
(U + PV) is a quantity called ______.
enthalpy
97
________ are concerned with policy matters and influence the goals and objectives of a business venture.
Personal decision
98
An object is placed 60 cm in front of a diverging lens of focal length –15 cm. A converging lens of focal length 20 cm is placed 10 cm behind the first lens. Where is the final image located, and what is the overall magnification?
-2 inverted
99
In MATLAB, what is %% used for?
Code sections
100
You are in the middle of a long MATLAB session where you have performed many analysis and made many plots. You run the following commands, yet a figure window doesn’t pop up on the top of your screen with your plot. What might be the issue?
x = [-1:0.1:1];
y = X.^2;
plot (x, y)
Your plot is in a figure window that was already open, hidden behind other windows on your screen.