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Seat No.: Enrolment No.:
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER III• EXAMINATION SUMMER 2018
Subject Code: 335005 Date:07-05 -2018
Subject Name: Structure I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)
Q.1

Explain Scalar quantity and Vector quantity with examples
07





Define force. State the characteristics of force with neat sketch.
07



Q.2

State the system of forces by neat sketches.
07





State low of Parallelogram low of forces and low of Superposition.
07



OR

State low of polygon of forces and low of triangle of forces.
07



Q.3

Explain different types of loads with sketches.
07





Explain different types of beams with sketches.
07



OR
Q.3

Explain different types of Supports with sketches.
06





Define Composition of Force, Resolution of Force, Resultant of force and Moment.
08



Q.4

Explain perfect frame and an imperfect frame with the help of sketches.
07





Explain Centroid and Centre of Gravity with examples.
07



OR
Q.4

What is a "frame"? Give its classification with examples.
07





State the conditions of equilibrium of Coplanar Non Concurrent forces.
07



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Q.5

Calculate the centre of gravity of T section having flange 20 x 2 cm, and
web 2 x 30 cm. Also show the position of C.G. on figure.
07


x
x


Following forces act at a point. Determine the Resultant in Magnitude Direction of above force System.
500 KN acting due North 800 KN acting S
300 KN acting towards East 1000 KN acting 300 south of East.
07




OR
Q.5

Two tensile forces of 1 KN each acting at an angle 450 between them. Find magnitude and direction of the resultant.
07





A Simply Supported Beam AB has span 5 m carries load of 20 KN and 10 KN at a distance of 2 m from left support and 1 m from right support respectively. Calculate Support reaction.
07