GATE2017 ME-1: 49

Arjun asked Feb 26, 2017 • recategorized Mar 5, 2021 by Lakshman Bhaiya

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Arjun asked Feb 26, 2017

GATE2017 ME-2: 20
Which one of the following statements is TRUE for the ultrasonic machining (USM) process? In USM, the tool vibrates at subsonic frequency. USM does not employ magnetostrictive transducer. USM is an excellent process for machining ductile materials. USM often uses a slurry comprising abrasive-particles and water.

Which one of the following statements is TRUE for the ultrasonic machining (USM) process?In USM, the tool vibrates at subsonic frequency.USM does not employ magnetostrict...

Arjun

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Arjun asked Feb 26, 2017

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Arjun asked Feb 26, 2017

GATE2017 ME-1: 55
Two cutting tools with tool life equations given below are being compared: Tool $1$: $VT^{0.1}=150$ Tool $2$: $VT^{0.3}=300$ where $V$ is cutting speed in m/minute and $T$ is tool life in minutes. The breakeven cutting speed beyond which Tool $2$ will have a higher tool life is ________ m/minute.

Two cutting tools with tool life equations given below are being compared:Tool $1$: $VT^{0.1}=150$Tool $2$: $VT^{0.3}=300$where $V$ is cutting speed in m/minute and $T$ i...

Arjun

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Arjun asked Feb 26, 2017

GATE2017 ME-1: 54
A sprue in a sand mould has a top diameter of $20 \: mm$ and height of $200$ mm. The velocity of the molten metal at the entry of the sprue is $0.5 \: m/s$. Assume acceleration due to gravity as $9.8 \: m/s^{2}$ and neglect all losses. If the mould is well ventilated, the velocity (upto $3$ decimal points accuracy) of the molten metal at the bottom of the sprue is _________ $m/s$

A sprue in a sand mould has a top diameter of $20 \: mm$ and height of $200$ mm. The velocity of the molten metal at the entry of the sprue is $0.5 \: m/s$. Assume accele...

Arjun

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Arjun asked Feb 26, 2017

GATE2017 ME-1: 53
A block of length $200$ mm is machined by a slab milling cutter $34$ mm in diameter. The depth of cut and table feed are set at $2$ mm and $18$ mm/minute, respectively. Considering the approach and the over travel of the cutter to be same, the minimum estimated machining time per pass is ________ minutes.

A block of length $200$ mm is machined by a slab milling cutter $34$ mm in diameter. The depth of cut and table feed are set at $2$ mm and $18$ mm/minute, respectively. C...

Arjun

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Arjun asked Feb 26, 2017

GATE2017 ME-1: 52
Following data refers to the jobs $(P, Q, R, S)$ which have arrived at a machine for scheduling. The shortest possible average flow time is __________ days. $\begin{array}{|l|l|} \hline \text{Job} & \text{Processing Time (days)} \\ \hline P & 15 \\ \hline Q & 9 \\ \hline R & 22 \\ \hline S & 12 \\ \hline \end{array}$

Following data refers to the jobs $(P, Q, R, S)$ which have arrived at a machine for scheduling. The shortest possible average flow time is __________ days.$$\begin{array...

Arjun

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Arjun asked Feb 26, 2017

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