A Level Nuclear

A Level Nuclear

12th Grade - University

16 Qs

quiz-placeholder

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A Level Nuclear

A Level Nuclear

Assessment

Quiz

Physics

12th Grade - University

Practice Problem

Medium

Created by

Christina Bridge

Used 2+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The nuclear fuel, which provides the power output in a nuclear reactor, decreases in mass at a rate of 6.0 × 10−6 kg per hour. What is the maximum possible power output of the reactor?

42 kW

75 MW

150 MW

300 MW

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The mass of the nuclear fuel in a nuclear reactor decreases at a rate of 1.2 × 10−5 kg per hour.

Assuming 100% efficiency in the reactor what is the power output of the reactor?

100 MW

150 MW

200 MW

300 MW

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Why is a moderator required in a thermal nuclear reactor?

to prevent overheating of the nuclear core

to absorb surplus uranium nuclei

to shield the surroundings from gamma radiation

to reduce the kinetic energy of fission neutrons

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A

B

C

D

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The moderator in a nuclear reactor is sometimes made of graphite. What is the purpose of the graphite?

to absorb all the heat produced

to decrease the neutron speeds

to absorb the α and γ radiations

to prevent the reactor from going critical

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Nobelium-259 has a half-life of 3500 s.

What is the decay constant of nobelium-259?

8.7 × 10–5 s–1

2.0 × 10–4 s–1

1.7 × 10–2 s–1

1.2 × 10–2 s–1

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following substances can be used as a moderator in a nuclear reactor?

Boron

Concrete

Uranium-238

Water

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