Mechanical J.E Quiz-10

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Question 1

Choose the correct relationship

• Aspecific gravity = gravity x density
• Bdynamic viscosity = kinematic viscosity x density
• Cgravity = specific gravity x density
• Dkinematic viscosity = dynamic viscosity x density

Question 2

For forward inclined vanes i.e., vanes having exit angle greater than 90, which of the following curves holds good?

• ACurve A
• BCurve B
• CCurve C
• DAll options are correct

Question 3

Element is defined as the _________.

• Asubstance which cannot be resolved into simpler form
• Belement made up of minute and chemically indivisible particles
• Csmallest quantity of a substance which can exist by itself in chemically recognized form
• Dsmallest known particle

Question 4

The part of the tooth between the pitch circle and dedendum circle is called ____.

• Ahalf tooth
• Bflank
• Cface
• Dupper tooth

Question 5

In skew bevel gears, the axes _________.

• Aare non-parallel and non-intersecting, and the teeth are curved
• Bare non-parallel and non-intersecting and teeth are straight
• Cintersect, and the teeth are curved and oblique
• Dintersect, and the teeth are curved and can be ground

Question 6

Which abrasive particle would you choose for grinding tungsten carbide tool inserts?

• Asilicon carbide
• Baluminium oxide
• Cdiamond
• Dcubic boron carbide

Question 7

In arc welding, arc is created between the electrode and workpiece by:-

• Aflow of current
• Bvoltage
• Cmaterial characteristics
• Dcontact resistance

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