222 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



TEST 3 



This is a test of common sense. Below are sixteen questions. Three answers are given to each 

 question. You are to look at the answers carefully; then make a cross in the square before the best 

 answer to each question, as in the sample: 



' Why do we use stoves? Because 

 O they look well 

 [j<j they keep us warm 

 Q they are black 



Here the second answer is the best one and is marked with a cross. Begin with No. 1 and keep 

 on until time is called. 



SAMPLE 



3 



Cats are useful animals, because 

 H they catch mice 



□ they are gentle 



□ they are afraid of dogs 



Why are pencils more commonly carried than 

 fountain pens? Because » 



G they are brightly colored 



g] they are cheaper 



Q they are not so heavy- 

 Why is leather used for shoes? Because 



Q it is produced in all countries 



it wears well. 



□ it is an animal product 



Why judge a man by what he does rather than 

 by what he says? Because 



H what a man does shows what he really is 



□ it is wrong to tell a lie 



□ a deaf man cannot hear 'what is said 



If you were asked what you thought of a per- 

 son whom you didn't know, what should you 

 say? 



D I will go and get acquainted 



□ I think he is all right 



13 I don't know him and can't say 



Streets are sprinkled in summer 



□ to make the air cooler 



■Q to keep automobiles from skidding 

 Fi3 to keep down dust 



Why is wheat better for food than corn? 

 Because 



H it is more nutritious 



P it is more expensive 



Q it can be ground finer 



If a man made a million dollars, he ought to 



□ pay off the national debt 



IS contribute to various worthy charities 

 Q give it .all to some poor man 



X^ 5 * Go to No. 9 above 



Fig. 20.— Group Examination Alpha, 



10 



11 



12 



13 



14 



15 



16 



Why do many persons prefer automobiles to 

 street cars? Because 



□ an auto is made of higher grade materials 

 J3 an automobile is more convenient 



□ . street cars are not as safe 



The feathers on a bird's wings help him to fly 

 because they 



g] make a wide, light surface 



□ keep the air off his body 



□ keep the wings from cooling off too fast 



All traffic going one way keeps to the same side 

 of the street because 

 O most people are right handed 



□ the traffic policeman insists on it 

 13 it avoids confusion and collisions 



Why do inventors patent their inventions? 

 Because 



M it gives them control of their inventions. 



□ it creates a greater demand 



□ it is the custom to get patents 



Freezing water' bursts pipes because 



□ cold makes the pipes weaker j 

 H water expands when it freezes 



□ the ice stops the flow of water 



Why are high mountains covered with snow? 

 Because 



Q they are near the clouds. 



□ the sun seldom shines on them 

 K! the air is cold there: 



If the earth were nearer- the sun 



□ the stars would disappear 



□ our months would be longer 

 H the earth would be warmer 



Why is it colder nearer the poles than near the 



equator? Because ; 



D the poles are always farther from .the sun 

 gj| the sunshine falls obliquely at the poles 



□ ' there is more ice at the poles 



Form 5, Test 3, Practical Judgment. 



