2000 General Studies, all questions
UPSC Prelims 2000 · General Studies
Question 118: Science and Technology
The blood glucose level is commonly expressed as
amm of Hg
bmilligram per decilitre
cparts per million
dgrams per litre
AnswerThe answer is (b).
Blood glucose is commonly expressed in milligrams per decilitre (mg/dL); a normal fasting level is about 70 to 100 mg/dL, and other countries use millimoles per litre. Blood pressure is in mm of Hg, pollutants in air or water in parts per million, and grams per litre is used for the concentration of solutions, not for blood glucose.
Why each option is right or wrong
- (a) Millimetres of mercury is the unit of blood pressure.
- (b) Right: blood glucose is expressed in milligrams per decilitre.
- (c) Parts per million is used for pollutants and traces, not for blood glucose.
- (d) Grams per litre is not the usual unit, since the amount in blood is small.
Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2000, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.