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