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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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606
A given mass of gas has a pressure of 80Nm-2 at a temperature of 47oC. If the temperature is reduced to 27oC with the volume remaining constant, the new pressure is
  • A. 46.0 Nm-2
  • B. 75.0 Nm-2
  • C. 80.0 Nm-2
  • D. 85.3 Nm-2
  • E. 139.4 Nm-2
View Answer & Discuss (1) WAEC 1988
607
Which of the following is a reason why a concrete floor feels colder to the bare feet than a mat on the same floor during the rainy season?
  • A. A mat if s better conductor of heat than the feet
  • B. Mat losses heat to the bare feet at a faster rate than concrete floor
  • C. Mat losses heat to the bare feet while the concrete floor extracts heat from them
  • D. Concrete floor is a better conductor of heat than the mat
  • E. Mat is a better conductor of heat than the floor
View Answer & Discuss (5) WAEC 1988
608
In which of the following is the expansion of solids a disadvantage?
  • A. the fitting of wheels in rims
  • B. fire alarms
  • C. the thermostat
  • D. the bimatellic thermometer
  • E. the balance wheel of a watch
View Answer & Discuss (4) WAEC 1988
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609
Which of the following best explains a person suffers more severe burns when his skin is exposed to steam than when boiling water is poured onto his skin?
  • A. steam is at a higher temperature than boiling water
  • B. steam posses greater heat energy per unit-mass than boiling water
  • C. steam spreads more easily over a wider area of the skin than boiling water
  • D. steam panetrates more easily over a wider area of the skin than boiling water
  • E. the specific latent heat of vaporization is released in changing from boiling water to steam
View Answer & Discuss (3) WAEC 1988
610

Which of the following statements about radiant heat is/are not correct?
I. radiant heat cannot travel through a vacuum
II. rough surfaces emit radiant heat more than polished surfaces
III. Dark surfaces absorb radiant heat more than bright surfaces

  • A. I only
  • B. II only
  • C. III only
  • D. I & II only
  • E. II & III only
View Answer & Discuss (22) WAEC 1988
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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