NECO Past Questions and Answers - Page 170

846.

The rate of cooling of a heated quantity of liquid in an enclosure depends on the

A.

Pressure of the liquid

B.

Temperature in the enclosure

C.

Pressure of the enclosure

D.

Volume of the liquid

Correct answer is B

No explanation has been provided for this answer.

847.

The creation of physical and concrete goods that can be seen and handled is

A.

Diminishing returns

B.

Division of labour

C.

Industrialization

D.

Production

E.

Specialization

Correct answer is D

No explanation has been provided for this answer.

848.

When an athlete perspires after running, he loses heat through

A.

Evaporation

B.

Conduction

C.

Radiation

D.

Convection

Correct answer is A

No explanation has been provided for this answer.

849.

The following measures used to check deflation EXCEPT

A.

Deficit financing

B.

Improving distribution system

C.

Increasing wages and salaries

D.

Raising the bank rate

E.

Reducing taxation

Correct answer is D

No explanation has been provided for this answer.

850.

A wire of length 10m is cooled from 50oC to 10oC. Calculate the decrease in the length of the wire. [c = 3 x 10-5K-1]

A.

1.8 x 10-4m

B.

1.5 x 10-4m

C.

1.2 x 10-2m

D.

1.8 x 10-3m

Correct answer is C

No explanation has been provided for this answer.