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ISRO Technical Assistant Mechanical 2019
43

ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key

43) In straight polarity welding

Electrode holder is connected to the negative and work to positive

Electrode holder is connected to the positive and work to negative

Work to positive and holder is earther

Holder is positive and work is earthed

Answer is:

Electrode holder is connected to the negative and work to positive

ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key

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Related ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key

44) Two closely coiled helical springs "A'" and "B" are equal in all respects but the diameter of wire of spring "A" is double that of spring "B". The stiffness of spring "B" will be _____ that of spring "A".

One-Sixteenth

One-Eighth

One-Fourth

One-Half

Answer is:

One-Sixteenth

45) If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is

0.2

0.3

0.5

0.6

Answer is:

0.5

46) LVDT (Linear Variable Differential Transformer) is an electro mechanical device which converts

AC current to DC current

Electrical signal to mechanical displacement

Step up or step down the voltage

Mechanical displacement to electrical signal

Answer is:

Mechanical displacement to electrical signal

ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key

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