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Calculate minimum water content ratio required for 60% hydration, so that cement gel just occupies the available space completely. ...

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Engineering Sonu Kumar 1 Answer 97 views

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In a rolling process, the state of stress of the material undergoing deformation is (a) pure compression (b) pure shear (c) compression and shear (d) tension and shear   ...

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Engineering Ishwarya Saro 2 Answer 85 views

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A steel bar 20 mm in diameter is turned at a feed of 0.25 min/revolution with a depth of cut of 4 mm. The rotational speed of the work piece is 160 RPM. The material removal rate in cubic millimeter/second  ...

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Engineering Ishwarya Saro 1 Answer 64 views

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A cube shaped casting solidifies in 5 min. The solidification time in minutes for a cube of the same material, which is 8 times heavier than the original casting, will be – (A) 10 (B) 20 (C) 24 (D) 40 ...

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Engineering Ishwarya Saro 2 Answer 87 views

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For a ductile material, toughness is a measure of – a) resistance of scratching b) ability to absorb energy up to fracture c) ability to absorb energy till elastic limit d) resistance to indentation ...

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Engineering Ishwarya Saro 2 Answer 76 views

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In order to have maximum power from a Pelton turbine, the bucket speed must be – a) equal to the jet speed b) equal to half of the jet speed c) equal to twice the jet speed d) independent of the jet speed ...

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Engineering Kamal Kumar 2 Answer 82 views

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The pressure ratio across a gas turbine (for air, specific heat at constant pressure c_p = 1040 J/kgK and ratio of specific heats γ=1.4) is 10. If the inlet temperature to the turbine is 1200 K and the isentropic efficiency is ...

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Engineering Kamal Kumar 1 Answer 91 views

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two cutting tools with tool life equations given below are being compared : tool 1 : VT^(0.1) = 150 tool 2: VT^(0.3) = 300 where V is cutting speed in m/minute and T is tool life in minutes. The breakeven cutting speed ...

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Engineering Kamal Kumar 1 Answer 57 views

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A mono atomic idea gas (  γ=1.67, molecular weight= 40) is compressed adiabatically from 0.1 MPa, 300 K to 0.2 MPa. The universal gas constant is 8.314 Kj/mol-K. The work of compression of the gas ( in Kj/kg) is (a) 29.7 (b) 19.9 (c) ...

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Engineering Kamal Kumar 2 Answer 75 views