Mechanical engineering Archives - Page 7 of 7

Question Cagtegory: Mechanical engineering

All Questions

Filter by

Questions Per Page:

A 4kW, 20 liter water heater is switched on for 10 minutes. The heat capacity Cp for water is 4 kJ/kgK. Assuming all the electrical energy has gone into heating the water, what is the increase in the water temperature?
A 4kW, 20 liter water heater is switched on for 10 minutes. The heat capacity Cp for water is 4 …
Mech_59 Asked on 18th November 2022 in Mechanical engineering.
- 474 views
- 1 answers
- 2 votes
An ideal gas undergoes an isothermal expansion from state R to state S in a turbine as shown in the diagram given below: The area of shaded region is 1000 Nm. What is the amount of turbine work done during the process?
An ideal gas undergoes an isothermal expansion from state R to state S in a turbine as shown in the …
Mech_59 Asked on 18th November 2022 in Mechanical engineering.
- 486 views
- 1 answers
- 2 votes
The data given in the table refers to an engine based on Carnot cycle, where Q1 = Heat received (kJ/min), Q2 = Heat rejected (kW), W = Work output(kW). If heat received by the engine is 2000kJ/minute what is the work output ?
The data given in the table refers to an engine based on Carnot cycle, where Q1 = Heat received (kJ/min), …
Mech_59 Asked on 18th November 2022 in Mechanical engineering.
- 442 views
- 1 answers
- 2 votes
A system while undergoing a cycle A-B-C-D-A has the value of heat and work transfers as given in the table: What is the power developed in kW ?
A system while undergoing a cycle A-B-C-D-A has the value of heat and work transfers as given in the table: …
Mech_59 Asked on 18th November 2022 in Mechanical engineering.
- 510 views
- 1 answers
- 2 votes
A gas expands from pressure P1 to pressure P2(P2=P1/10). If the process of expansion is isothermal, the volume at the end of expansion is 0.55 m^3. If the process of expansion is adiabatic, what is the volume at the end of expansion?
A gas expands from pressure P1 to pressure P2(P2=P1/10). If the process of expansion is isothermal, the volume at the …
Mech_59 Asked on 17th November 2022 in Mechanical engineering.
- 559 views
- 1 answers
- 2 votes
3 moles of an ideal gas is compressed to half the initial volume at a constant temperature of 300 K. What is the work done in the process?
3 moles of an ideal gas is compressed to half the initial volume at a constant temperature of 300 K. …
Mech_59 Asked on 17th November 2022 in Mechanical engineering.
- 540 views
- 1 answers
- 2 votes
A compressor delivers 4 m^3 of air having a mass of 5 kg. What is the specific weight and specific volume of air being delivered.
A compressor delivers 4 m^3 of air having a mass of 5 kg. What is the specific weight and specific …
Mech_59 Asked on 16th November 2022 in Mechanical engineering.
- 529 views
- 1 answers
- 2 votes
A gas mixture consists of 3 kg of oxygen, 5 kg of nitrogen and 12 kg of methane. What is the mass fraction and mole fraction of oxygen ?
A gas mixture consists of 3 kg of oxygen, 5 kg of nitrogen and 12 kg of methane. What is …
Mech_59 Asked on 15th November 2022 in Mechanical engineering.
- 549 views
- 1 answers
- 2 votes
In a new temperature scale, the boiling and freezing points of water at one atm are 100 degree and 300 degree respectively. Correlate this scale with Centigrade scale. The reading of 0 degree in the centigrade will be ?
In a new temperature scale, the boiling and freezing points of water at one atm are 100 degree and 300 …
Mech_59 Asked on 8th November 2022 in Mechanical engineering.
- 543 views
- 1 answers
- 2 votes

Tags

LATEST QUESTIONS

Tags