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