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Involves the application of scientific and mathematical principles to innovate solutions for real-world problems in fields such as infrastructure.
Amorphous materials include:
A steel cannot qualify for stainless prefix until it has at least how many percent of Chromium?
Metal has the property of:
Stringers are a type of discontinuity sometimes found in:
What is the unit of work?
A steel casting suitable for working or remelting is called:
Metal forming such as rolling, results in:
The purpose of metal forming is to:
What is ASTM test for shear strength is designated for plastics?
A casting process involving a re-usable mold is called:
The length of time required for recrystallization is:
The tension in the cable is the same on both sides of the pulley
What refers to an actual forve that arises to oppose relative motion between contacting forces?
NDT is used for locating only those discontinuities open to the surface:
The process in which a mold is formed from a mixture of sand and a thermosetting resin binder that is placed against a heated metal pattern is called:
What is the mixing of gases due to molecular motion called?
Which of the items listed below is a discontinuity found in ingots?
An EDM notch formed in 304 stainless steel may cause:
A discontinuity can be caused within a casting as it solidifies. It would be called:
Lack of penetration may be the result of:
Which of the following metals is least suitable to be cold worked?
An advantage of shell molding over green sand molding is:
What is the emissivity of a black body?
Better mechanical properties are obtained with:
Which of the following factors can have a negative influence on some non-destructive tests?
The following defect is caused by the melting away of the sidewalls of the welding groove at the edge of a layer of weld metal and runs parallel to the weld bead:
Which of the following is lowest resistance grounding on earth?
Prior to forging, steel is usually heated to:
Metals which cannot be work hardened are those which:
Which term best describes what is sought by NDT?
If a weldment has a crater crack, you might find it:
What is a non-metallic inclusion called in bar stock?
Which of the following measurements indicates the smoothest surface finish?
Severe grinding cracks appear as:
The grain size of ferrous metal is commonly refined by:
A material which is considered ferromagnetic is:
All metals solidify in a ___________ structure.
The strain produced by a hydrostatic pressure is called ____________.
Refers to the mass of solids in the soil compared to the mass of water at the same volume.
What is the unit of luminous efficiency?
A type of defect which propagates along grain boundaries is called:
Patterns made of wood:
How much pH content of an acid?
By departmentalization of an organization, it decentralizes __________.
A forging defect caused by the metal being folded over and forced into the surface but not welded to form a single piece is called:
33 What is the lowest-temperature diffusion hardening process and does not require a quench?
The work metal for working with a forging hammer is:
Discontinuities are:
How many dynes in one newton?
A common characteristic of sand casting and investment casting is:
What is the change in cost per unit variable change called?
The material used for making a pattern depends on:
Quantities which posses magnitude are called _____________.
What field of study encompasses the procurement and production of metals?
What is the action exerted by one body upon another called?
A green sand mold is:
A rupture in the material that can be in any direction on the part and is caused by localized stresses that exceed the tensile strength of the material is:
A lamination is something which might be found in:
What is the generic name of a class of polymer which is commercially known as nylon?
What do you call tin mill steel without a coating?
The hardest structure that can be produced by heat treating steel is:
A piano string with a length of 1.17m and a mass of 21.0g in under tension of 6.4 x 103 N, what is the fundamental frequency?
What does the symbol "pH" stands for?
The following gas is used intensively for shielding in the gas tungsten-arc welding process:
The essential difference between permanent mold casting and die casting is:
Fine lines, likely to occur in groups caused by non-metallic impurities present in the original ingot and extruded lengthwise are called:
The fuel gas most commonly used in gas welding is:
Cracks may occur at any stage of manufacturing
Non-metallic inclusions are:
Sense and slope of angles with respect to the reference axes is called _________.
Which of the following is identified as a casting insert?
_______ is the ratio of the volume of water to the total volume of void space.
The term bronze is used to designate any alloy containing
A long defect, parallel to the longitudinal axis of a bar and caused by blowholes, cracks or tears introduced in earlier processing and elongated in the direction of rolling or forging is called:
As hot working progresses, the energy required for further processing (assuming the temperature of the part is held constant):
What is another term for Tempering?
Which of the following discontinuities is not normally associated with a casting?
What phenomenon(s) may happen in the heat affected zone during the process of fusion welding?
A casting process in which the pattern is not re-usable is called:
A difference between shielded metal-arc welding and gas metal-arc welding is that, in gas metal-arc welding:
What remains constant during a steady-flow process?
What is another term for "Alkanes"?
Which term is used to denote a family of thermosetting polymers that are reaction products of alcohols and acids?
Grain direction in steel bar stock is always:
Under R.A. 9292, the standard on minimum compensation is based on ______.
When several forces act in a given situation it is called _______________.
As a metals hardness increases:
Spot welding is usually performed using:
Non-metallic materials trapped in solid metal are described as:
The tort law is concerned with _____.
In the shielded metal-arc process, the electrode covering may include materials used to:
Electoplating complex parts results in:
Porosity formula:
Which device is used for measuring the velocity of a bullet?
what carboxylic acid is found in coconut oil? Lactic acid
Which of these elements deals with the geometry of motion?
The principles of kinetic particles are derived from which law?
Pressure welding can be accomplished with pressure alone, but what else is usually added?
A metal support for holding cores in place within a sand mold is called:
How much percent of the mass is comprised by oxygen in the earth's crust?
The term brass is used to designate an alloy containing
What temperature scale is identical to Kelvin scale?
Level II magnetic particle technicians should always be able to evaluate if an indiction is relevant, false or nonrelevant, and if it is rounded or linear.
Grinding cracks can be caused by:
Heat treat cracks may be caused by:
It is the attraction between like molecules
What is the combination of cutting and scratch test of a material called?
The electrodes used for spot welding are usually made of:
If a weld is manufactured and the parent metal is restrained, a crack might occur due to stress. It would usually occur:
Which is NOT a intensive property of thermodynamics?
The property of a material to exist under different lattice structures at different temperatures is:
Usually, the most serious type of flaw in metals is/are:
The use of acids to remove oxides and scale on hot-worked steels is known as
Which statement of the second law of thermodynamics states that no heat engine can have a thermal efficiency of 100 percent?
A disadvantage of dry sand molds when compared to green sand molds is:
What is formed when acids react with active metals?
Which of the following welding processes does not involve melting of the parts to be joined?
Which of these is assumed to be the sum of the linear momentum of its particles?
What do you add to compensate for the remaining high iron-oxide content of the steel?
Capitalized cost of a project is also known as ______.
Blowholes occur beneath the surface of a casting:
A magnetic material may be demagnetized by:
When a crack-like space is caused by molten metal covering solidified metal, the result is:
In forgings, grain:
What is ASTM test for tension is designated for standard methods of steel products?
What is the real or imaginary surface that seferates the system from the surroundings?
Which of the following properties is controlled by the electrons in the atom?
A process in which multiple electrodes are most commonly used in various arrangements to deposit metal more rapidly is:
A dark linear indication appearing at the edge of a weld is probably:
As cold working progresses, the energy required for further processing (assuming the temperature of the part is held constant):
One of the main causes of cold shuts is:
A weld discontinuity that always occurs at the root of a weld is:
Seams are sub-surface discontinuities
Like ingots, welds can contain porosity:
In spot resistance welding, pressure used may be:
The process in which a steel is heated above the upper critical temperature into the austenite and then cooled slowly through the transformation range in the furnace or a good heat insulated material is known as:
What type of steel has a carbon as its principal hardening agent?
What is considered as the general purpose, oldest type and widely used cast iron?
This is the ratio of the volume of voids to the total volume of the soil.
Bursts are caused by:
The Curie point is:
what is the opposite of alkali?
A metal forming operation which allows three dimensional control over the shape of the product is:
An advantage of investment casting over green sand casting is:
______________ refers to the state just before surfaces start to slip.
Porosity is sometimes found in plate or sheet metal and is given the name:
A substance that has a fixed chemical composition isknown as _______ substance.
The internal bores of fastener holes on aircraft are an important source of cracking caused by:
What term is used to describe a polymer that has a rubber like properties?
What is the physical apperance of sodium?
Cold shuts are most likely found in:
Resistance welding differs from fusion welding in that:
What is concurrent force system?
Forming a taper, or a reduction of metal products such as rod and tubing, by forging is called:
When metals solidify:
Efficiency of a machine is the ratio of:
_____________ is known as the application of fluid mechanics in engineering.
Who discovered the Hooke's law?
A forging lap may occur if:
An example of a processing discontinuity that is the result of an inherent discontinuity changing shape during rolling is a:
What acid id used in glass itching?
32. When all atom molecule are the same, the substance is called?
Which body in the resent ITU structure took place of CCITT?
A generally smooth indication on a cast surface resulting from the meeting of two streams of metal coming from different directions and failing to fuse is called:
Some members in the truss which cannot carry load
What is the ratio of stress to strain in a material loaded within its elastic range?
Submerged arc welding may be performed:
Which of the following can be classified as processing defects:
Machinability and fatigue resistance are improved in metals that have been:
The factor which must be considered prior to selecting the hammer or press to produce a closed-die forging is:
A flaw which can resemble a cold shut is:
All station must promote the FIlipino music by playing ___ OPM every hour.
Usually, seamless tubing is produced by:
Galvanized steel are steel product coated with
Project quality management involves all of the following processes except:
The engineering materials are known as "plastics" are more correctly called:
Cold shuts are most likely to be found in:
Heat exchanger tubes are defect prone at regions:
In a mold, the runner connects:
Which of the following is present in ingots?
This refers to the soil solids. It is otherwise called as dry unit weight of soil, and calculated using, ρd = MsVTrho_d = frac{M_s}{V_T}ρd = VTMs
Results when a body is acted upon by the force are called _______________.
What is the ratio of force to elongation?
Patterns used to prepare molds for casting are made of:
The general law of mechanics that stress is directly proportional to strain
Grinding cracks in metal are always:
The top portion of a molding flask is called a:
A cold shut has:
Quantities which posses both magnitude and direction are called ____________.
Which of the following statements is correct?
What materials have permeabilities slighter greater than that of free space?
Grain boundaries are areas of a metal microstructure:
A metal production process which eliminates the need for ingot cropping is:
A fatigue crack is a service defect that is caused by a:
Micro shrinkage might occur in a casting:
Non-metallic impurities trapped within the molten metal of a casting are generally called:
What refers to the amount of a product made available for sale?
When a consultant or specialist gives advice to his superior, he is using what type of authority?
What is the ratio of stress to strain?
What is the prime time block for FM radio in Metro Manila?
A forging lap might occur:
Cold working steel or aluminum results in a decrease in:
The thermodynamic properties that are independent of the size of the system are called ____________.
What do you call earth and stone mixed with the iron oxides?
What is a substance that attracts a piece of iron?
The principal purpose of risers in molds is to:
Which support has one moment?
NDT is a method of locating which of the following:
The submerged mass of soil per unit volume.
In fusion welding, preheating will result in:
It is usually difficult to machine a smooth surface on a material when:
An alloy is a substance composed of:
A welding defect that occurs at the root and runs parallel with the weld is:
Double taxation is a disadvantage of which business organization?
What unit expresses the amount of radiation actually absorbed in the tissue?
The bottom portion of a molding flask is called a:
Grinding cracks occur crosswise to grinding wheel rotation
Grinding cracks are usually caused by:
Inserts which may be found in sand molds are:
Which of the following generally requires the most extensive technique development for NDT?
A cause of gas porosity in welds is:
Fatigue cracking is always caused by a single overloading.
In which of the following might you expect to find a seam?
What term represents the share of participation in business organizations?
In a mold, the sprue connects:
A non-consumable electrode used for arc welding would be made of:
What is the force of attraction on a body?
A metal stressed below its elastic limit will return to its original shape:
What is the reciprocal of the bulk modulus?
A method commonly used to remove a number of flaws in an ingot prior to forming is:
In Metro Manila, AM radio with airtime from 9 PM to 12 midnight is ____.
A common discontinuity in a weld or casting that is difficult to detect by magnetic particle testing is:
The method of applying mechanics that assumes all objects are continuous is called __________.
When a pouring gate in a casting blocks off prematurely, it can cause many small, subsurface holes. This condition is called:
What refers to the claim of anyone to ownership?
Hot working an ingot may produce a product which has:
It is a pictorial representation in solving a system.
Degree of Saturation (%):
A forming operation which results in the greatest dimensional accuracy is:
What property of a light wave is determined by its wavelength?
What type of grain structure would normally be found at the center of a heavy walled casting?
A burst is _____________ discontinuity.
Who proposed pH scale in 1909?
What is the value of the universal gas constant in kJ/mol •K?
Which discontinuity is not normally found in a casting?
If there are many sellers and few buyers, the market situation is called ___________.
What is the ratio of the elongation to force?
An extremely thin discontinuity that is the result of pipes, or inclusions flattened and made directional by working is called:
A joining process which occurs without fusion of the base metal is:
In which of the following welding processes is filler metal never added?
What is the chief ore of tin?
In its original shape, porosity would appear:
What is the chief ore of titanium?
A service defect that appears as a series of small micro-openings with no definite pattern and extend in any direction following the grain boundaries is:
After solidification, the structure of the outside surface of a casting usually consists of:
A hot tear in a casting is a crack. It could occur:
The low-temperature reservoir of the heat reservoirs is known as ____.
Wrought products invariably exhibit:
The acronym EDM refers to:
A common processing indication in rolled bar stock is:
What type of steel has 0.8% carbon and 100% pearlite?
A crater crack may occur when:
The way of providing metal ductility between two cold working operations is:
In the submerged arc welding process:
The reason an ingot used as forging stock is subjected to more than the minimum hot working required to develop contour is to:
Cracks or fractures formed in a casting prior to completion of solidification because of restricted contracting is indicative of a:
It is the intensity of the force.
The most easily forgeable material, from the following, is:
In the beginning all steel is perfect:
Premature blocking of a gate during the pouring of a casting might cause:
A P 1,000,000 issue of 3%, 15-year bond was sold at 95%. What is the rate of interest of this investment?
In gas welding, the acetylene is usually burned with:
Name the element that is commonly used in making lasers.
In gas welding, a reducing flame is produced when:
Strain hardening occurs whenever a metal is:
When thick and thin casting sections are adjacent to each other, what discontinuity may result?
Increasing test sample temperature normally:
In the typical functinal organization hierarchy, the chief engineer is under the _____.
Possible effect(s) of metal forming is (are) to:
A metal insert imbedded in the surface of a sand mold to increase the cooling rate at the point is called:
What are considered as the building blocks for engineering materials?
The dimensionless parameter describing deformation
A definite break in the material caused by excessive working of the metal during the forging, rolling or extruding operation is called a:
A dark narrow line running down the center of the weld is:
What is the measure of rigidity?
A cold shut is an inherent defect that may be caused by:
The first step in the production of a casting is the making of:
During on-line (Manufacturing) inspection of components, defective areas are often automatically marked to:
The pressure at which a substance is capable of supporting without fracturing is called ___________.
Arc welding is usually performed using:
Polishing is a surface finishing operation which results in:
Laminations are produced:
Which of the following is a discontinuity that might be found in a forging?
e = VvVsfrac{V_v}{V_s}VsVv is a formula for:
Materials of low ductility are best forged with:
What is most abundant metal in nature?
A large semi-finished hot rolled product, approximately square in cross section, and whose cross-sectional area is usually not less than 36 sq. inches is called:
How are elements numbered 58 to 71 in the periodic table called?
The grain size in a material may be controlled by:
As cold working progresses, the energy required for further processing (assuming the temperature of the part is held constant)
The folding of a metal in a thin plate on the surface of a forging causes:
In which of the following joining methods will flaws, when they do occur, be essentially two dimensional?
A 250V light source has a mean spherical luminous intensity of 87.5 candelas. Compute the luminous intensity of the Lamp.
If atomic masses of Al and O are 26.98 amu and 16.00 amu respectively, how many grams of Al are there in 431g of Al2O3?
Most manufacturing defects in a tube are:
Aircraft turbine blades are usually processed by:
Which of these deals with the forces required to produced motion ______________.
The factor which must be considered prior to selecting the best method to produce a closed die forging is:
What is defined as the force per unit area?
Sublimation is direct change from
Hot tears in a casting may be the result of:
With a forging hammer the striking force is imposed on the work metal by:
The machining process which can produce the best surface finish is:
The CPM was developed by Rand and Walker in what year?
is a scientific field of the civil engineering discipline that studies the mechanical behavior of soil.
Compute the internal energy of ice at 0oC as it is change to water same temperature
Which is the type of annuity where payments are made at the end of each period starting from the first period?
In which of the following casting processes are cores never used?
In the resistance welding process:
3 components or phases of soil
A weld defect formed as a result of shrinkage is called:
A burst may be found in a:
A large molecule with two alternating mers is known as
A process during which entropy remains constant is called _____ process.
Rapid oxidation of metal surfaces during hot working of a mild steel may;
Bursts usually have the following characteristics:
Elements may be added to the filler metal to:
In which of the following arc welding processes is the electrode non-consumable?
An advantage of electroslag welding over other methods of welding is that:
Hydrogen will cause porosity if present during heat treating or welding.
The middle portion of a molding flask is called a:
Which of the following methods produces a casting faster and at a lower cost?
Oxides in weldments can cause discontinuities which are similar to non-metallic inclusions. But these oxide-caused discontinuities are called:
What do we call fluids at rest?
In a rolling mill, flattening and elongation of metal is accomplished by:
Heat treating might cause discontinuities which would probably start at:
Which of the following is an inherent discontinuity?
What refers to a shape achieved by allowing a liquid to solidify in a mold?.
Forging laps can occur in which of the following places:
Non-metallic inclusions are not present before the billet is worked:
What type of bonding in which electrostatic attraction is predominant?
In the shielded metal-arc process, the covering material:
A burst is a processing defect that may be caused by:
Galvanizing is a process of applying to iron and steel products a protective layer of:
The overall stress to give failure by fatigue is:
The millworking process used most to form metals into 3D shapes is:
Electroplating sometimes decreases the fatigue strength of highly stressed parts largely as a result of:
A slag inclusion in a weld is normally found in a weld crater.
______ shows the process of how fluids react to forces.
A riser in the mold is there to:
Inherent discontinuities are:
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