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