Recent questions tagged materials-manufacturing-and-industrial-engineering

A $4$ $\text{mm}$ thick aluminum sheet of width $w = 100$ $\text{mm}$ is rolled in a two-roll mill of roll diameter $200$ $\text{mm}$ each. The workpiece is lubricated wi...

Two mild steel plates of similar thickness, in butt-joint configuration, are welded by gas tungsten arc welding process using the following welding parameters.$$\begin{ar...

The product structure diagram shows the number of different components required at each level to produce one unit of the final product $P$. If there are $50$ units of on-...

The Cast Iron which possesses all the carbon in the combined form as cementite is known asGrey Cast IronSpheroidal Cast IronMalleable Cast IronWhite Cast Iron

The size distribution of the powder particles used in Powder Metallurgy process can be determined byLaser scatteringLaser reflectionLaser absorptionLaser penetration

The machining process that involves ablation isAbrasive Jet MachiningChemical MachiningElectrochemical MachiningLaser Beam Machining

A spot welding operation performed on two pieces of steel yielded a nugget with a diameter of $\text{5 mm}$ and a thickness of $\text{1 mm}$. The welding time was $\text{...

A surface grinding operation has been performed on a Cast Iron plate having dimensions $\text{300 mm} (\textit{length}) \times \text{10 mm} (\textit{width})\times\text{50...

The thickness, width and length of a metal slab are $\text{50 mm}$, $\text{250 mm}$ and $\text{3600 mm}$, respectively. A rolling operation on this slab reduces the thick...

The resistance spot welding of two $\text{1.55 mm}$ thick metal sheets is performed using welding current of $\text{10000 A}$ for $\text{0.25 s}$. The contact resistance ...

A $\text{200 mm}$ wide plate having a thickness of $\text{20 mm}$ is fed through a rolling mill with two rolls. The radius of each roll is $\text{300 mm}$. The plate thic...

In Materials Requirement Planning, if the inventory holding cost is very high and the set up cost is zero, which one of the following lot sizing approaches should be used...

Bars of $250$ mm length and $25$ mm diameter are to be turned on a lathe with a feed of $0.2$ mm/rev. Each regrinding of the tool costs Rs. $20$. The time required for ea...

For a single item inventory system, the demand is continuous, which is $10000$ per year. The replenishment is instantaneous and backorders ($S$ units) per cycle are allow...

The base of a brass bracket needs rough grinding. For this purpose, the most suitable grinding wheel grade specification is$C30Q12V$$A50G8V$$C90J4B$$A30D12V$

In the Critical Path Method $(CPM)$, the cost-time slope of an activity is given by$\dfrac{\text{Crash Cost – Normal Cost}}{\text{Crash Time}} \\$$\dfrac{\text{Normal Cos...

A sheet metal with a stock hardness of $250\: HRC$ has to be sheared using a punch and a die having a clearance of $\text{1 mm}$ between them. If the stock hardness of th...

A strip of thickness $40\:mm$ is to be rolled to a thickness of $20\:mm$ using a two-high mill having rolls of diameter $200\:mm$. Coefficient of friction and arc length ...

For an assembly line, the production rate was $4$ pieces per hour and the average processing time was $60$ minutes. The $\text{WIP}$ inventory was calculated. Now, the pr...

A slot of $25\:mm\times 25\:mm$ is to be milled in a workpiece of $300\: mm$ length using a side and face milling cutter of diameter $100\: mm$, width $25\: mm$ and havin...

The following data applies to basic shaft system:tolerance for hole$ = 0.002\: mm$,tolerance for shaft$ = 0.001\: mm$,allowance $= 0.003\: mm$,basic size $= 50\: mm$.The ...

A steel part with surface area of $125\:cm^{2}$ is to be chrome coated through an electroplating process using chromium acid sulphate as an electrolyte. An increasing cur...

In a turning process using orthogonal tool geometry, a chip length of $100\: mm$ is obtained for an uncut chip length of $250\: mm$. The cutting conditions are: cutting s...

The thickness of a steel plate with material strength coefficient of $210\: MPa$, has to be reduced from $20\: mm$ to $15\: mm$ in a single pass in a two-high rolling mil...

Two business owners Shveta and Ashok run their business in two different states. Each of them, independent of the other, produces two products $A$ and $B$, sells them at ...

$\textbf{Consider two cases as below.}$$\textbf{Case 1:}$ A company buys $1000$ pieces per year of a certain part from vendor $’X’.$The changeover time is $2$ hours and t...

The fluidity of molten metal of cast alloys (without any addition of fluxes) increases with increase inviscositysurface tensionfreezing rangedegree of superheat

The cold forming process in which a hardened tool is pressed against a workpiece (when there is relative motion between the tool and the workpiece) to produce a roughened...

The most common limit gage used for inspecting the hole diameter isSnap gageRing gagePlus gageMadter gage