GATE2018-2-8

Arjun asked in Machine Design Feb 17, 2018 edited Jan 16, 2020 by go_editor

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Pre-tensioning of a bolted joint is used to

strain harden the bolt head
decrease stiffness of the bolted joint
increase stiffness of the bolted joint
prevent yielding of the thread root

gateme-2018-set2

Arjun asked in Machine Design Feb 17, 2018 edited Jan 16, 2020 by go_editor

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Arjun asked in Machine Design Feb 17, 2018

GATE2018-2-38
A bar is subjected to a combination of a steady load of $60 \: kN$ and a load fluctuating between $-10 \: kN$ and $90 \: kN$. The corrected endurance limit of the bar is $150 \: MPa$, the yield strength of the material is $480 \: MPa$ and the ultimate ... safety is $2$, the value of $a$ (in $mm$), according to the modified Goodman's criterion, is _____ (correct to two decimal places).

Arjun asked in Machine Design Feb 17, 2018

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gateme-2018-set2
numerical-answers

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Arjun asked in Machine Design Feb 17, 2018

GATE2018-2-6
A frictionless gear train is shown in the figure. The leftmost $12$-teeth gear is given a torque of $100 \: N-m$. The output torque from the $60$-teeth gear on the right in $N-m$ is $5$ $20$ $500$ $2000$

Arjun asked in Machine Design Feb 17, 2018

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gateme-2018-set2

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Arjun asked in Quantitative Aptitude Feb 17, 2018

GATE Mechanical 2018 Set 2 | GA Question: 8
A contract is to be completed in $52$ days and $125$ identical robots were employed, each operational for $7$ hours a day. After $39$ days, five-seventh of the work was completed. How many additional robots would be required to complete the work on time, if each robot is now operational for $8$ hours a day? $50$ $89$ $146$ $175$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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gateme-2018-set2
numerical-ability
work-time

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Arjun asked in Quantitative Aptitude Feb 17, 2018

GATE Mechanical 2018 Set 2 | GA Question: 10
An unbiased coin is tossed six times in a row and four different such trials are conducted. One trial implies six tosses of the coin. If H stands for head ans T stands for tail, the following are the observations from the four trials. HTHTHT TTHHHT HTTHHT ... Two T will occur. One H and one T will occur. Two H will occur. One H wll be followed by one T.

Arjun asked in Quantitative Aptitude Feb 17, 2018

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gateme-2018-set2
numerical-ability
pobability

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Arjun asked in Analytical Aptitude Feb 17, 2018

GATE Mechanical 2018 Set 2 | GA Question: 9
A house has a number which need to be identified. The following three statements are given that can help in identifying the house number? If the house number is a multiple of $3$, then it is a number from $50$ to $59$. If the house number is NOT a multiple of ... of $6$, then it is a number from $70$ to $79$. What is the house number? $54$ $65$ $66$ $76$

Arjun asked in Analytical Aptitude Feb 17, 2018

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gateme-2018-set2
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logical-reasoning

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GATE2018-2-8

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