ENTC BUNDLED exams 2023 with 100% correct answers

The principle of transmissibility states that a force acting at a point on a rigid body can be moved to any other point___________without changing the effect of the force on the rigid body? - correct answer -Along the line of action of the force. What is the moment of a force about a point/axis? ...

The strength or penetrating power of x-ray radiation depends on the - correct answer -Tube voltage The total amount of radiation produced by an x-ray tube for a given set-up is determined by the - correct answer -Exposure value RT is mainly used for the detection of - correct answer -Volumetri...

Undercut is the loss of resolution at a sharp, thickness transition area due to: - correct answer -Scattering within the film Bremsstrahlung production of x-rays produces radiation that is composed of - correct answer -A continuous spectrum of energies over some range X- rat generators produce...

When radiographing to the 2-2T quality level, an ASTM penetrameter for 13 mm (0.5 in.) thick 2024 aluminium alloy has a thickness of - correct answer 25 x 10-5m (10 mils) The penetrating ability of an X-ray beam is governed by: - correct answer kilovoltage The ability to detect a small disco...

Magnetic particle is a nondestructive testing method used for - correct answer -locating surface and near surface discontinuities in steel Ferromagnetic material is - correct answer -strongly attracted by a magnet The permeability of a material describes: - correct answer -the ease with which ...

Magnetic particle inspection can be performed on parts made from which materials - correct answer -Iron, Nickel, Cobalt When a magnetic field cuts across a crack: - correct answer -Magnetic poles form at the edges of the crack Magnetic particle inspections uses small ferromagnetic particles si...

Why was machine manufacture of horn combs often unsuccessful? - correct answer -Pieces of horn were not flat or uniform in thickness. Why weren't daguerreotype cases made from horn or horn powders? - correct answer -Horn does not flow easily and consequently it does not pick up fine details in a...

additives - correct answer -use to improve of extend the properties of plastics antistatic agents - correct answer -static charges may be dissipated by the addition of ? four types of colorants - correct answer -dyes, organic pigments, inorganic pigments, special-effects pigments dyes - cor...

A highly toxic, colorless, odorless gas is named ______. - correct answer Carbon Monoxide Combustible liquids are those with flash points at or above ________ degree celsius. - correct answer 38 Name three natural materials that may be more toxic than plastics. - correct answer Silk, wood and ...

Why does corrosion occur? - correct answers Occurs is metals simply because most metals are not in their natural state until they return to the ore form in which we found them. What is Galvanic Corrosion? - correct answers Material deterioration due to electrochemical when coupled with a material...

How does paint protect against corrosion? - correct answer -Prevents oxygen from touching the metal, acts like a coat What environments affect corrosion? - correct answer -pH, Temperature, velocity, concentration, inhibitors, cleaning, aeration, gases, acids, bases, salts, & solvents operating...

Cold Work Prefixes - correct answer -W (water hardening), O (oil quenching), A (air hardening), D (high C, high Cr) Shock Resisting Prefix - correct answer -S Hot Work Prefixes - correct answer -H H10-H19 (chromium types) H20-H39 (tungsten types) H40-H59 (molybdenum types) High Speed Pre...

Types of cast irons: - correct answer -Gray Iron Malleable Iron White Iron Ductile Iron Alloy Irons Malleable iron is ____ - correct answer -heat treated for ductility White iron is ____ - correct answer -hard and wear resistant Ductile iron has ____ - correct answer -some ductility as ...

____ is a process to strengthen rubber by adding _____ to transform it into a thermosetting elastomer - correct answer -sulfur vulcanization; sulfur the major raw material for synthetic plastic is ____ - correct answer -ethylene the major raw material for synthetic rubber is ____ - correct ans...