Bushong 1-5 worksheet Standard units of measurement

What unit results when a coulomb is divided by a second? a. Ampere b. Hertz c. Ohm d. Rad e. Volt

A

Which of the following is a unit of energy? a. Gray b. Joule c. Newton d. Rad e. Sievert

B

which of the following is a unit of electric potential? a. Joule b. kVp c. mA d. mAs e. Newton

B

The fundamental unit of force is the: a. Coulomb b. Joule C. Newton d. Roenten e. Volt

C

The radiologic unit milliampere-second (mAs) is actually a measure of: a. Electric charge b. Electric potential c. Number of electrons d. potential difference e. x-ray intensity

C

What common radiologic unit results from the following? millicoulomb x second a. ESE b. kVp c. mA d. PBL e. SID

C

Which of the following has units of s^-1? a. dose b. Exposure c. Frequency d. Time e. Velocity

C

Which of the following is an SI-derived unit? a. Dyne b. Horsepower c. Joule d. Kelvin e. Roentgen

C

Which of the following is not a bade quantity in the SI? a. Electric current b. mass c. Radiation exposure d. Temperature e. Time

C

Which of the following is not a system of unites? a. British b. CGS c. French d. MKS e. SI

C

A Kilogram is the: a. Energy required to raise 1 lb of water 1 degree C b. Mass of a standard gold bar c. Mass of 1 lb of water d. Mass of 1000 cm^3 of water e. Temperature rise of 1 lb of water

D

SI stands for which of the following? a. Inconsistent system b. Incorrect system c. Le systeme Institutional d. Le Systeme international d'Unites e. System international

D

water has a mass density of a g/cm^3. Its density is also: a. 10^-3 kg/m^3 b. 1 kg/m^3 c. 10 kg/m^3 d. 10^3 kg/m^3 e. 10^5 kg/m^3

D

The Unit of measure that is the same for all systems of measure is the: a. Calorie b. Kilogram c. Meter d. Pound e. Second

E

Which of the following is an SI base unit? a. Beccquerel b. Coulomb c. Coulomb/kilogram d. Gray e. Kilogram

E

Which of the following is an SI name for a base unit? a. Celsius b. Kilovolt c. Milliampere d. Newton e. Second

E

Which of the following is expressed in the proper units? a. Absorbed dose: Sv b. Activity: rem c. Dose equivalent: rad d. Exposure: Bq e. Exposure: C/kg

E

Which of the following standard of SI measure is correct? a. the foot was measured by King Henry VIII b. the mater is related to the visible emission from the sun c. the meter is the length of an engraved platinum-iridium bar. d. the second is based on the rotation of the earth around the sun e. The second is based on the vibrations of cesium atoms

E