A block of 40 kg is lifted to a height of 200 cm. Calculate for the value of Work.

(a)   J

Convert 150 oC to oF.

(a)  

The saturated steam at 150 degree C and 1 bar has a total heat content of (a)   kJ/ kg.

(a)   is the slowest form of heat transfer.

Saturated temperature is the temperature at which a (a)   changes phase at a given pressure.

What is the formula of Power?

(a)  

20 HP = (a)   Watts

The energy needed to heat the water is 140,000 kJ. Find the mass of natural gas required in this process?

(note: the heating value of natural gas is 55,000 kJ/ kg).

(a)  

What is the value of atmospheric pressure in psi?

(a)  

The value of specific heat of water.

(a)  

Specific Weight is the wieght per unit (a)   of the material.

The oil will float in the water because (a)   .

Density is equal to (a)   per unit volume.

When the specific volume of a materials will increase, what will happen to the pressure?

(a)  

10 Calorie is equal to (a)   Joule.

What is the opposite of density?

(a)  

The conduction heat transfer occurs only in (a)   object or material.

Latent heat of fusion is the amount of energy (a)   during melting.

The transfer of heat between two bodies by currents of moving gas or fluid.

(a)  

Why the boiling point in high altitude in mountains is lower?

(a)  

Sun heats the earth by convection.

(a)  

What will happen to enthaply when the pressure increases?

(a)  

Latent heat is a heat that causes a change of state with no change in (a)   .

Enthalpy is the the sum of the system's internal energy and the product of its (a)   and pressure.

Steam that has been heated to a temperature that is greater than the saturation temperature is called (a)   steam.

If we heat 5 kgs of water from 20°C to 80°C  how many kJ’s will we use?

(a)  

An electric kettle has a power rating of 500 Watts is used to heat water for 15 minutes. Determine the electrical energy used in this process in terms of kWh?

(a)  

The box with a mass of 10 kg is lift to a height of 3 meters. The total workdone in the system is (a)   Joule.

The (a)   is the amount of heat required to change the temperature of 1 gram of water by 1 °C.

The energy stored in fossil fuels, is called (a)   energy.

The boiler is used to convert chemical energy to (a)   energy.

The turbine is used to convert the heat energy to (a)   energy.

The generator is used to convert the mechanical energy to (a)   energy.

water at atmospheric pressure with a temperature below 100 deg.C (the saturation temperature) is called (a)   water.

Water that is not boiling but is at the saturation temperature is called (a)   water.

(a)   is a type of heat transfer through electromagnetic waves.

Energy due to motion is called (a)   energy.

The energy due to position level is called (a)   energy.

A(n) (a)   system is one which has no transfer of mass or energy with its surroundings.

A(n) (a)   system is one which has no transfer of mass with its surrounds.

A(n) (a)   system is one which has a transfer of both mass and energy with its surroundings

What is the unit of work?

(a)  

What is the unit of power?

(a)  

Energy is the ability to perform (a)   .

In the power plant, the hot boiler tubes transfers heat energy to the water wall by (a)   .

(a)   is one way in which heat produced by burning a fuel is transferred to the boiler wall in the furnace.

The heat produced in the power plant is transfered to the water wall by means of (a)   .