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