Engineering Answers

a fluid enters a turbine at the rate of 14kj/s with an initial enthalpy of 2762kj/s and leaves with a final enthalpy of 2607kj/kg. Find the power developed if the turbine has an efficiency of 0.85.

A fluid enters a turbine at the rate of 14kg/s with an initial enthalpy of 2762kj/kg and leaves with a final enthalpy of 2607kj/kg. Find the power developed if the turbine has an efficiency of 0.85.

1500kg of steam is to be produced per hour with an enthalpy of 3077kj/kg. The feed water supplied to the boiler has an enthalpy of 167.5kj/kg. The velocities of the water at inlet and the steam at exit are 2m/s and 45m/s respectively. find the rate at which heat must be supplied to the boiler.

6. A man invested P36,000 at 12% interest compounded quarterly. In how many years

will the money earned P200,000?

5. If the money invested will earned P200,000 after 10 years at 16% compounded

annually, what is the principal amount?

4. A man deposited P45,000 and the bank promised that the money will earn 90,000 10

years from now. Determine the interest of money if compounded annually.

1. A man applied for a loan with 16% interest. The interest will be automatically

deducted from the loan at the time the money is released, and after one year will have

to pay the same amount as stated in the loan. Determine the interest actually charge to

him.

A vessel having a capacity of 0.05m3 contains a mixture of saturated water and saturated steam at a temperature of 245°C. The mass of the liquid present is 10kg. Find the following(i) The pressure, (ii) The mass, (iii) The specific volume, (iv) The specific enthalpy, (v)The specific entropy, and(vi) The specific internal energy

A moving coil ammeter, a thermal ammeter and a half-wave rectifier are connected in series with a resistor across 110 V a.c. supply. The circuit offers a resistance of 50Ω in one direction and an infinite resistance in the reverse direction. Calculate (i) the readings on the ammeters and (ii) the form factor and peak factor of current wave. Assume the supply voltage to be sinusoidal.