Mechanical J.E Quiz-69

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Question 1

In once through boiler________.

• Aair flow through the opposite direction
• Bair flow through the same direction
• Csteam is sent out only in one direction
• Dthere is no recirculation of water

Question 2

Fourier number is the measure of

• AHeat stored in a body relative to heat conducted through it.
• BHeat conducted through the body relative to heat stored.
• CThe thermal energy stored capacity to the convective thermal resistance.
• DThe thermal energy stored capacity to the conductin thermal resistance.

Question 3

Morse test is carried out to determine ..... of an engine:

• AIndicated power
• BFrictinal power
• CBrake power
• DAll of the above

Question 4

Which of the following is a flexible coupling?

• ASleeve coupling or Muff coupling
• BSplitt muff coupling or Compression coupling
• COldham coupling
• DFlange coupling

Question 5

When stainless steel undergoes plastic deformation then the value of strain hardening exponent (n) is

• An>0
• Bn<0
• C0<n<1
• Dn=1

Question 6

Match the followings:

• A1-a, 2-a, 3-c, 4-b
• B1-a, 2-c, 3-c, 4-a
• C1-c, 2-a, 3-c, 4-a
• D1-c, 2-c, 3-a, 4-b

Question 7

Pappus theorem in engineering mechanics relate with

• ACentroid
• BMoment
• CCouple
• DResultant

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