Power System & Generation Test Questions - Set 5

1)   What is the working fluid in closed cycle MHD system?

a. Helium and argon
b. Coal
c. Natural gas
d. Potassium
Answer  Explanation 

ANSWER: Helium and argon

Explanation:
No explanation is available for this question!


2)   In a MHD generator the conductor is made of

a. Copper
b. Liquid metal
c. Gas
d. Liquid metal or gas
Answer  Explanation 

ANSWER: Liquid metal or gas

Explanation:
No explanation is available for this question!


3)   Power output per unit volume of a MHD generator is proportional to

a. Specific electrical conductivity of gas
b. Square of the magnetic field strength
c. Square of the fluid velocity
d. All of these
Answer  Explanation 

ANSWER: All of these

Explanation:
No explanation is available for this question!


4)   The installed capacity of wind energy in India is about

a. 8000 MW
b. 1500 MW
c. 6000 MW
d. 4000 MW
Answer  Explanation 

ANSWER: 8000 MW

Explanation:
No explanation is available for this question!


5)   Tidal energy utilizes

a. Kinetic energy of water
b. Potential energy of water
c. Both (a) and (b)
d. None of the above
Answer  Explanation 

ANSWER: Potential energy of water

Explanation:
No explanation is available for this question!


6)   In a fuel cell, electrical energy is produced by

a. Reaction of hydrogen with oxygen
b. Thermionic action
c. Combustion of fuel in the absence of oxygen
d. All of the above
Answer  Explanation 

ANSWER: Reaction of hydrogen with oxygen

Explanation:
No explanation is available for this question!


7)   Thermal gradient in a geo thermal plant is given by

a. Heat flux * thermal conductivity
b. Heat flux / thermal conductivity
c. Thermal conductivity / heat flux
d. None of these
Answer  Explanation 

ANSWER: Thermal conductivity / heat flux

Explanation:
No explanation is available for this question!


8)   Tidal energy development needs

a. Huge capacity and long construction time.
b. Huge capacity and low construction time.
c. Low capacity and long construction time.
d. Low capacity and low construction time.
Answer  Explanation 

ANSWER: Huge capacity and long construction time.

Explanation:
No explanation is available for this question!


9)   The potential of developing tidal power in India is in

a. Kutch
b. Ran
c. San joe
d. Severn
Answer  Explanation 

ANSWER: Kutch

Explanation:
No explanation is available for this question!


10)   Pugga valley in Ladakh is suitable for which among the following power generation?

a. Solar
b. Geo thermal
c. Wind
d. None of these
Answer  Explanation 

ANSWER: Geo thermal

Explanation:
No explanation is available for this question!


11)   Presence of non – condensable gasses in a geo - pressured water causes

a. Pollution problem
b. Corrosion problem
c. Flow problem
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


12)   Direct conversion of heat energy into electrical energy is possible through

a. MHD generators
b. Fuel or solar cells
c. Thermionic converters
d. Both (a) and (c)
e. None of these
Answer  Explanation 

ANSWER: Both (a) and (c)

Explanation:
No explanation is available for this question!


13)   In geo thermal power plants waste water is

a. Discharged back to earth.
b. Discharged into the sea.
c. Recirculated after cooling in cooling towers.
d. Evaporated in ponds.
Answer  Explanation 

ANSWER: Discharged back to earth.

Explanation:
No explanation is available for this question!


14)   What is a load curve?

a. A plot of load vs current.
b. A plot of load vs time.
c. A plot of load vs duration of time.
d. Total number of units generated vs time.
Answer  Explanation 

ANSWER: A plot of load vs time.

Explanation:
No explanation is available for this question!


15)   What does the area under the load curve represent?

a. System voltage
b. Current
c. Energy consumed
d. Maximum demand
Answer  Explanation 

ANSWER: Energy consumed

Explanation:
No explanation is available for this question!


16)   What does the highest point on the daily load curve represent?

a. Peak load
b. Maximum demand
c. Both (a) & (d)
d. None of these
Answer  Explanation 

ANSWER: Maximum demand

Explanation:
No explanation is available for this question!


17)   Load curve of a generation is always

a. Positive slope
b. Zero slope
c. Negative slope
d. Combination of (a), (b) and (c)
Answer  Explanation 

ANSWER: Combination of (a), (b) and (c)

Explanation:
No explanation is available for this question!


18)   If the daily load curve is divided by 24, what does this curve represent?

a. Average load for the day
b. Connected load
c. Maximum demand
d. Demand factor
Answer  Explanation 

ANSWER: Average load for the day

Explanation:
No explanation is available for this question!


19)   What does a mass curve represent?

a. Average load
b. The total energy consumed by the load upto a particular time in a day
c. The number of hours for which a particular lasts during the day
d. The variation of load during different hours of the day
Answer  Explanation 

ANSWER: The total energy consumed by the load upto a particular time in a day

Explanation:
No explanation is available for this question!


20)   The mass curve is plotted from which of the following curve?

a. Chronological curve
b. Energy load curve
c. Load duration curve
d. None of these
Answer  Explanation 

ANSWER: Load duration curve

Explanation:
No explanation is available for this question!