Science Bowl

GENERAL SCIENCE

General Science - 46

GENR-93; Multiple Choice: The heat exhaust of an automobile with an internal combustion
engine represents approximately what percent of the energy of the original fuel?   

w)  10 % 
x)  50 % 
y)  35 % 
z)  5 % 

ANSWER: Y -- 35 % 

 
GENR-93; Multiple Choice:  In a precise diet and nutrition study, you need to determine the
average  weight and average height of a group each to a precision of 1%. The minimum sample
size  required is 

w)  10 
x)  100 
y)  1000 
z)  10,000 

ANSWER:  Z -- 10,000 

  
GENR-93; Multiple Choice: Liquid fuels can be used to generate electricity in a variety of ways. 
Which of the following technologies converts liquid fuel directly to electricity without a
combustion step? 

w)  turbine 
x)  battery 
y)  fuel cell 
z)  Stirling engine 

ANSWER:  Y -- FUEL CELL 

 
GENR-93; Multiple Choice: A color television set employs a 25,000 volt electron accelerator to 
produce the picture and potentially harmful radiation which must be shielded against.  The main 
  component of this radiation consists of 

w)  electrons which penetrate the picture tube 
x)  soft x-rays 
y)  microwaves 
z)  ultraviolet radiation 

ANSWER:  X -- SOFT X-RAYS