The indicated power of a four stroke engine (in watts) is equal to (where P = Mean effective pressure in N/m², L = Length of stroke in metres, A = Cross-sectional area of the piston in m², and N = Speed of the engine in revolutions per second (r.p.s)?

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  1. P.L.A.N/2
  2. P.L.A.N
  3. 2 × P.L.A.N
  4. P.L.A.N/4

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Answer: Option 1

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In the below figure, PC is the connecting rod and OC is the crank making an angle $$\theta $$ with the line of stroke PO and rotates with uniform angular velocity at $$\omega $$ rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other.?

Answer: Option 2

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In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at $$\omega $$ rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by?

Answer: Option 3

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Answer: Option 2 Let'

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Answer: Option 4 Let'

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Answer: Option 2 Relative humidity is given by μ/[1 - (1 - μ) (Ps/Pb)] where pv = Partial pressure of water vapour, pb = Barometric pressure, ps = Pressure of saturated air, pd...

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Answer: Option 2 Let'

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Answer: Option 2 The mechanical efficiency (ηm) of an I.C. engine is equal to B.P/I.P. where I.P. = Indicated power, B.P. = Brake power F.P. = Frictional power

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Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)?

Answer: Option 4 Let'

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Answer: Option 3 Let'

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A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called?

Answer: Option 2 Let'

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