Top 350+ Solved Power Plant Engineering (PPE) MCQ Questions Answer

From 196 to 210 of 322

Q. Thermal shield is used in high powered nuclear reactors to  

a. absorb the fast neutrons

b. protect the walls of the reactor from radiation damage

c. slow down the secondary neutrons

d. protect the fuel element from coming in contact with the coolant

  • b. protect the walls of the reactor from radiation damage

Q. Where was the first control fission of an atom carried out?

a. india

b. japan

c. russia

d. germany

  • d. germany

Q. Which was the first country to develop an atomic bomb?

a. russia

b. united states

c. china

d. japan

  • b. united states

Q. How many percentage of fissionable U-235

a. 0.1%

b. 0.5%

c. 0.7%

d. 1.5%

  • c. 0.7%

Q. Nuclear energy is only harmful.

a. true

b. false

  • b. false

Q. Which State in India nuclear accident took place?

a. tamil nadu

b. karnataka

c. gujarat

d. rajasthan

  • a. tamil nadu

Q. Which one of the following medical condition caused by the high exposure of radiation?

a. kidney stone

b. aids

c. mutation

d. blood pressure

  • c. mutation

Q. What is the main purpose of nuclear energy?

a. to kill the enemy nation

b. to waste the excessive energy

c. to use it as an alternate source of energy

d. to cause mutation for people who are working

  • c. to use it as an alternate source of energy

Q. Trash racks are built for  

a. discharging the water freely from the turbine exit to tailrace

b. preventing the turbine from ingress of floating and other materials

c. creating artificial head to store sufficient potential energy of water

d. controlling the opening of valves

  • b. preventing the turbine from ingress of floating and other materials

Q. Penstock in a hydroelectric power plant is

a. a pipe connected to runner outlet

b. nozzle that release high pressure water on turbine blades

c. a conduit connecting forebay to scroll case of turbine

d. a pipe connecting surge tank to dam

  • c. a conduit connecting forebay to scroll case of turbine

Q. The pressure at the inlet or exit of the draft tube should not be  

a. less than one third of atmospheric pressure

b. greater than one third of atmospheric pressure

c. less than one atmospheric pressure

d. greater than one atmospheric pressure

  • a. less than one third of atmospheric pressure
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