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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

All Topics  1919

Plutonium-239 is produced__________________?
A as basic raw material
B by neutron irradiation of IT*
C by neutron irradiation of thorium
D artificially
Correct Answer: by neutron irradiation of IT*
The unit of radio-activity is_____________?
A electron-volt
B electron-ampere
C curie
D MeV
Correct Answer: curie
Uranium-233 is produced__________________?
A as basic raw material
B by neutron irradiation of Uz
C by neutron irradiation of thorium
D artificially
Correct Answer: by neutron irradiation of thorium
Plutonium is produced________________?
A as basic raw material
B by neutron irradiation of Uz
C by neutron irradiation of throium
D artificially
Correct Answer: by neutron irradiation of Uz
Natural uranium is made up of__________________?
A 99.282% U238, 0.712% U235, 0.006% U234
B 99.282% U235, 0.712% U238, 0.06%’ U234
C 99.282% U234, 0.712% U238, 0.006% U235
D 99.282% U235, 0.712% U234, 0.006% U238
Correct Answer: 99.282% U238, 0.712% U235, 0.006% U234
Enriched uranium may contain fissionable contents of the order of__________________?
A 1-99%
B 1-25%
C 1-50%
D 1-75%
Correct Answer: 1-99%
A reactor capable of converting a ferrite material into fissile isotopes is called____________________?
A regenerative reactor
B fast breeder reactor
C breeder reactor
D boiling water reactor
Correct Answer: regenerative reactor
Electron-volt is the unit of________________?
A atomic power
B energy
C voltage
D radio activity
Correct Answer: energy
The risk of radioactive hazard is greatest in the turbine with following reactor___________________?
A pressurised water
B boiling water
C gas cooled
D liquid metal cooled
Correct Answer: boiling water
Hydrogen is preferred as better coolant in comparison to C02 because former_____________________?
A is lighter
B is inert
C has high specific heat
D is a good conductor
Correct Answer: has high specific heat
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