Rearrange the parts of the sentence in correct order. Tarapur agreement guaranteed supplies of P : Tarapur reactors for entire life Q : enriched uranium fuel from R : the US for running the

U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about __________ percent.

A

50

B

3

C

85

D

97

To meet its rapidly growing energy demand, some opinion that india should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium?
1. Thoriumis farmore abundant in nature than uranium.
2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
3. Thorium produces less harmful waste compared to uranium.
Which of the statements given above is/are correct?

A

Only 1

B

2 and 3

C

1 and 3

D

1, 2 and 3

To meet its rapidly growing energy demand some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium?
1. Thorium is far more abundant in nature than uranium.
2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
3. Thorium produces less harmful waste compared to uranium.
Which of the statement(s) given above is/are correct?

A

Only 1

B

Only 2 and 3

C

Only 1 and 3

D

1, 2 and 3

Which of the following statement is true? I. In homogeneous reactors the nuclear fuel and the moderator represents a uniform mixture in the fluid form. II. In heterogeneous reactors separate fuel sludge or roads are inserted in the moderator III. Most of the nuclear reactors used these days are of homogeneous type

A

Only statement I and II are true

B

Only statement I and III are true

C

Only statement II and III are true

D

Only statement III is true

Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.

A

1

B

2

C

3

D

6

Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).

A

15

B

45

C

65

D

85

Thermal nuclear reactors using 'enriched uranium' as fuel contain a maximum of . . . . . . . . percent fissile material i.e., U-235.

A

1

B

2

C

3

D

7

A solid-oxide fuel cell is fed with carbon monoxide and reacts with air to produce CO2. This reaction will produce 2 electrons which are used to power an electric circuit external to the fuel cell. The reaction equation is shown below: 2CO(g) + O2(g) -> 2CO2(g) ΔHr° = -565.96 kJ/mol This reaction does not occur for other types of fuel cells which use a catalyst, such as polymerelectrolyte membrane or phosphoric-acid fuel cells. The presence of carbon monoxide on the anode side of these types of fuel cells will cause catalyst poisoning, reducing the efficiency and voltage of the fuel cell. Determine the rate of enthalpy change for a carbon dioxide production rate of 208 mol/hr. The extent of the reaction occurring in the fuel cell can be obtained by the following equation: where:

A

-16.35 kW

B

-15.35 kW

C

-16.45 kW

D

-15.45 kW

Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

A

Melting point, hence can be subjected to higher temperature

B

Density ; hence core volume for a given power output would be smaller

C

Resistance to effects of irradiation

D

All of the above

Consider the following statements:
1. When consent to an agreement is caused by undue influence, the agreement is a contract voidable at the option of the party whose consent was so caused.
2. Where both the parties to an agreement are under a mistake as to a matter of fact essential to the agreement, the agreement is void.
Which of the statements given above is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2