6-14.
W h e n p u l l i n g t h e f i n g e r l e v e r o f a
d o u b l e - a c t i o n a i r b r u s h f a r t h e r
b a c k , w h a t a c t i o n r e s u l t s ?
1.
2.
3.
4.
6-15.
You may vary the spray pattern made
More air mixes with the pigment
More air diverts away from the
nozzle
More pigment leaves the
a i r b r u s h
More pigment leaves the
a i r b r u s h i n a f i n e r p a t t e r n
by double-action airbrushes by
using which of the following
methods?
1.
I n c r e a s i n g o r d e c r e a s i n g t h e
distance between the brush and
p a p e r
2.
By setting the adjustment screw
3.
By using lesser amounts of air
4.
By using lesser amounts of
pigment
6-16.
How do you make double-action
a i r b r u s h e s w o r k l i k e s i n g l e - a c t i o n
a i r b r u s h e s ?
1.
By setting the adjustment screw
2.
B y p u l l i n g t h e f i n g e r l e v e r a l l
the way back
3.
B y d e c r e a s i n g t h e a i r f l o w
4.
By using a second lever
6-17.
When using double-action
a i r b r u s h e s ,
t h r e e d i s t i n c t m o t i o n s
must be controlled and coordinated.
What action results when these
motions run together?
1.
An uneven spray pattern
t h r o u g h o u t t h e s t r o k e
2.
A s u d d e n b u r s t o f f l u i d a t t h e
b e g i n n i n g o f t h e s t r o k e
3.
An even spray pattern
t h r o u g h o u t t h e s t r o k e
4.
A sudden burst of pigment at
t h e e n d o f t h e s t r o k e
6-18.
When using oscillating airbrushes,
what procedure provides better
s p r a y c o n t r o l ?
1.
Slow hand movement
1.
A i r - f e d
2.
Large ink supply
2.
P r e s s u r e - f e d
3.
Slow needle action
3.
G r a v i t y - f e d
4.
A s t r a i n e r i n t h e p i g m e n t c u p
4.
S i p h o n - f e d
IN ANSWERING QUESTIONS 6-19 THROUGH 6-22,
SELECT FROM COLUMN B THE TYPE OF AIRBRUSH
USED FOR THE TYPE OF WORK IN COLUMN A.
RESPONSES IN COLUMN B MAY BE USED MORE
THAN ONCE.
A. TYPES OF WORK
B. AIRBRUSHES
6-19.
General purpose
1 . O s c i l l a t i n g
work
6-20.
Pictorial rendering
2. Double-
a c t i o n
6-21.
Heavy-bodied
3 . S i n g l e -
pigments
a c t i o n
6-22.
Large backgrounds
4 . O s c i l l a t i n g
t r i p l e -
a c t i o n
6-23.
What is a recommended technique for
o p e r a t i n g a i r b r u s h e s ?
1.
2.
3.
4.
H o l d t h e a i r b r u s h 8 i n c h e s
above and at a 90-degree angle
t o t h e p a p e r s u r f a c e
H o l d t h e a i r b r u s h a t a 4 5 -
d e g r e e a n g l e t o t h e p a p e r a n d
s p r a y t h e e d g e o f t h e p a p e r
H o l d t h e a i r b r u s h 8 i n c h e s
above the paper and use two
quick simultaneous hand motions
t o b e g i n t h e s p r a y
H o l d t h e a i r b r u s h 5 i n c h e s
a b o v e t h e p a p e r s u r f a c e a n d
t u r n y o u r w r i s t f o r d a r k e r
t o n e s
6-24.
Which of the following airbrushes
i s b e s t s u i t e d f o r p o r t r a i t u r e a n d
photographic retouching?
1.
S i n g l e - a c t i o n
2.
D o u b l e - a c t i o n
3.
P o s t e r
4.
O s c i l l a t i n g
6-25.
What type of airbrush requires the
l e a s t a m o u n t o f a i r p r e s s u r e a n d i s
l e s s l i k e l y t h a n o t h e r a i r b r u s h e s
t o c l o g ?
29