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