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