Post Utme Economics Past Questions and Answers

Question 1001:

Which of the following is NOT true about mercury as a thermometric liquid?

A. It does not wet glass
B. It is opaque and easily seen
C. It can be used for extra low temperature down to ${200}^{\circ }\mathrm{C}$
D. It is a good conductor of heat and responds rapidly to changes in temperature

Question 1002:

A stone whirled at the end of rope $35\mathrm{cm}$ long, makes 15 complete revolutions in $4\mathrm{seconds}$.
Find the angular velocity in radius per second.

A. 23.6rad.s ${\mathrm{s}}^{-1}$
B. $31.4\mathrm{rad}.{\mathrm{s}}^{-1}$
C. $824.7\mathrm{rad}.{\mathrm{s}}^{-1}$
D. 942.0rad.s ${}^{-1}$

Question 1003:

An object of mass $7\mathrm{kg}$ is moving at a constant velocity of $20\mathrm{ms}$. Determine the kinetic energy.

A. $22.2\mathrm{KJ}$
B. $140.0\mathrm{KJ}$
C. $1.4\mathrm{KJ}$
D. $562.5\mathrm{KJ}$

Question 1004:

Find the cost of operating an electric appliance for 10 hours at 30 kobo per kwh, if it takes $3\mathrm{A}$ when connected to a $220\mathrm{V}$ supply.

A. N66
B. $\mathrm{\#}1.32$
C. #1.98
D. N2.62