Download DBATU B.Tech 2019 March 2nd Sem Engineering Machines Question Paper

Marks 6

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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE

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Mid Semester Examination – MARCH 2019

Course: FY B. Tech GROUP A

Subject Name: ENGINEERING MECHANICS

Date: 13/3/2019

Sem: II

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Subject Code: BTES203

Max Marks: 20

Duration:-1 Hr.

Instructions to the Students:

1. Assume suitable data wherever necessary and State it clearly.

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2. Figures to Right Indicate full Marks

QUESTIONS

1 Multiple choice questions

1. The forces, whose line of action lies in the same plane and are meeting at one point, are known as.........
   A) Co-planar concurrent forces. B) Non co-planar concurrent
   

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   C) co-planar non concurrent D) none of the above
2. If an object is on an inclined plane having an angle ?, the component of weight (w) parallel to incline is
   A. w cos ? B. w sin ?
   C. w tan ? D. w cot ?
3. Type of distributed loads are
   

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   A) Point load B) Uniformly distributed load
   C) Uniformly Varying load D) Both B & C
4. A Block of 500N is kept on Horizontal surface. A Horizontal force of 190N is required to just move it. If µ=0.38 what is Resultant Reaction......
   A) 500 B) 544 C) 534 D) 556
5. Second moment of area is the product of..........
   

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   A. area and square of the distance from the reference axis
   B. area and distance from the reference axis
   C. square of the area and distance from the reference axis
   D. square of the area and square of the distance from the reference axis
6. A Truss which satisfies relation m> 2j - r then Truss is called as.......
   

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   A)Redundant Truss B) Perfect Truss c) Deficient truss D) Unstable

Q.2 Solve Any Two of the following. 3X2

1. (A) State and prove Varignon's Theorem.
2. (B) Locate centroid of the following I-Section fig-1 with the following details
   i) Top flange= 20mm x 10 mm ii) Bottom flange=100 mm x 20 mm
   

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   iii) web thickness=15 mm iv) overall depth 250 mm

Q.3 Solve Any One of the following. 1X8

1. A beam is loaded by Hinge support at A & Roller support at D. Calculate reactions at A & D, Refer Fig-2

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