UPTU sample papers.

Can anyone solve and tell me the answers (not solutions) of these papers?

the links are in the image

I know it is a tedious work but it will help someone (me) :)

I have solved the first one, and will solve the 2^nd one tomorrow. The exam is on 18^th April, so I will be glad if you could give me the answers here befor 14^th April.

Thanks a lot!

in a physics laboratory a block x is balanced by a block Y of mass 200 kg,each are suspended from a balance of equal lever arms .the scale pan on X is at a height.H1=2 cm ,where as scale pan on Y is at height 1 cm above the floor.the error in weighing is (in gram)

consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

 

 

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