Civil Engg. JE Exams: Technical Quiz 43

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Question 1

Geometric similarity between Model and prototype means the similarity of

• AMotion
• BDischarge
• CLinear dimensions
• DForces

Question 2

For tight leakage joints, following type of thread is best suited ________.

• Ametric
• Bbuttress
• CNPT (National Pipe Threads)
• Dacme

Question 3

The type of riveted joint shown in the figure below is ________.

• ADouble riveted lap joint
• BDouble riveted butt joint
• CQuadruple riveted lap joint
• DQuadruple riveted butt joint

Question 4

Guest’s theory of failure is applicable for following of materials

• Abrittle
• Bductile
• Celastic
• Dplastic

Question 5

Which of the following is applied to brittle materials?

• AMaximum principal stress theory
• BMaximum principal strain theory
• CMaximum strain energy theory
• DMaximum shear stress theory

Question 6

Consider the following theories of failure:
A) Maximum stress theory
B) Maximum strain theory
C) Maximum shear stress theory
D) Maximum energy or distortion theory
The most suitable for ductile material is

• AA and B
• BA and C
• CA and D
• DC and D

Question 7

A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used?

• A1 : 5
• B1 : 2.5
• C1 : 25
• DNone of these

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