grobtv 10th ed 7

7/30/2019 Grobtv 10th Ed 7

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GROBTV_Q&A

Which of the following camera tubes uses lead oxide (PbO) for the photoconductive target plate?

a. Plumbicon

b. Vidicon

c. Saticon

d. image orthicon

Camera signal output w/o sync is called

a. non-composite video b. black burst

c. generator lock video

d. composite video

A low contrast picture in which white seems flat and lacking in detail suggests

a. low beam current

b. high gain in pre-amplifier

c. excessive gamma

d. insufficient scanning width

Which of the ff camera tubes has minimum lag? (Board Nov.2006)

a. plumbicon

b. vidicon

c. saticon

d.

iconoscope

The part of the visible spectrum where camera pick-up tubes have the greatest output

a. yellow-green

b. red

c. blue

d. infrared

Precise scanning size and linearity are most important in (Board Nov.2006)

a. a single-tube color pickup

b. a plumbicon

c. a black-and-white camera

d. a saticon

Beam alignment magnets for the camera tube are adjusted while rocking which control?

a. electrical focus

b. optical focusc. beam current

d. shading

Special effects and production switching are done by the

a. SEG

b. CCU

c. ENG camera

d. sync generator

The gamma of the picture tube is

a. 2.2

b. 0.4545

c. 1.0

d. 1.4

If the camera cannot be placed far away enough to include everything in the scene, change the lens to one with

a. shorter focal length

b. lower f rating

c. higher f rating

d. longer focal length

A typical value of vidicon dark current is

a. 0.2uA

b. About 200uA

c. 8mA

d. 800mA

7/30/2019 Grobtv 10th Ed 7


A lens has an 8-cm focal length and 4-cm diameter. Its f rating is

a. 2

b. 4

c. 8

d. 32

In the sawtooth waveform for linear scanning

a. the complete cycle includes trace and retrace

b. the linear rise is for flyback

c. the sharp reversal in amplitude produces trace

d. the beam moves faster during trace than retrace

Given a 635-us vertical retrace time, the number of complete horizontal lines scanned during vertical flyback is

a. 10

b. 20

c. 30

d. 63

One-half line spacing between the start positions for scanning even and odd fields produces

a. exact interlacing

b. linear scanning

c. line pairing

d.

fishtailing

The number of lines scanned per frame in the raster on the picture tube screen

a. 525

b. 262 ½

c. 20

e. high gain in pre-amplifier

f. excessive gamma

g. insufficient scanning width


e. plumbicon

f. vidicon

g. saticon

h. iconoscope

The part of the visible spectrum where camera pick-up tubes have the greatest outpute. yellow-green

f. red

g. blue

h. infrared


e. a single-tube color pickup

f. a plumbicon

g. a black-and-white camera

h. a saticon


e. electrical focus

f. optical focus

g. beam current

h. shading


e. SEG

i. yellow-green

j. red

k. blue

l. infrared


i. a single-tube color pickup

7/30/2019 Grobtv 10th Ed 7


j. a plumbicon

k. a black-and-white camera

l. a saticon


i. electrical focus

j. optical focus

k. beam current

l. shading


f. SEG

g. CCU

h. ENG camera

i. sync generator


e. 2.2

f. 0.4545

g. 1.0

h. 1.4


e.

shorter focal lengthf. lower f rating

g. higher f rating

h. longer focal length


e. 0.2uA

f. About 200uA

g. 8mA

h. 800mA


e. 2

f. 4

g. 8

h. 32


e. the complete cycle includes trace and retrace

GROBTV_Q&A


e. Plumbicon

f. Vidicon

g. Saticon

h. image orthicon


e. non-composite video

f. black burst

g. generator lock video

h. composite video


h. low beam current

i. high gain in pre-amplifier

j. excessive gamma

k. insufficient scanning width


i. plumbicon

j. vidicon

k. saticon

l. iconoscope

7/30/2019 Grobtv 10th Ed 7



m. yellow-green

n. red

o. blue

p. infrared

GROBTV_Q&A


i. Plumbicon j. Vidicon

k. Saticon

l. image orthicon


i. non-composite video

j. black burst

k. generator lock video

l. composite video


l. low beam current

m. high gain in pre-amplifier

n. excessive gamma

o.

insufficient scanning width


m. plumbicon

n. vidicon

o. saticon

p. iconoscope


q. yellow-green

r. red

s. blue

t. infrared


m. a single-tube color pickup

n. a plumbicono. a black-and-white camera

p. a saticon


m. electrical focus

n. optical focus

o. beam current

p. shading


j. SEG

k. CCU

l. ENG camera

m. sync generator


i. 2.2

j. 0.4545

k. 1.0

l. 1.4


i. shorter focal length

j. lower f rating

k. higher f rating

l. longer focal length

7/30/2019 Grobtv 10th Ed 7



i. 0.2uA

j. About 200uA

k. 8mA

l. 800mA


i. 2

j. 4

k. 8

l. 32


f. the complete cycle includes trace and retrace

g. the linear rise is for flyback

h. the sharp reversal in amplitude produces trace

i. the beam moves faster during trace than retrace

Given a 635-us vertical retrace time, the number of complete horizontal lines scanned during vertical flyback is

e. 10

f. 20

g. 30

h.

63

One-half line spacing between the start positions for scanning even and odd fields produces

e. exact interlacing

f. linear scanning

g. line pairing

h. fishtailing

The number of lines scanned per frame in the raster on the picture tube screen

d. 525

e. 262 ½

f. 20

p. high gain in pre-amplifier

q. excessive gamma

r. insufficient scanning width

Which of the ff camera tubes has minimum lag? (Board Nov.2006)q. plumbicon

r. vidicon

s. saticon


m. Plumbicon

n. Vidicon

o. Saticon

p. image orthicon


m. non-composite video

n. black burst

o. generator lock video

p. composite video


s. low beam current

t. high gain in pre-amplifier

u. excessive gamma

v. insufficient scanning width


t. plumbicon

u. vidicon

v. saticon

w. iconoscope

7/30/2019 Grobtv 10th Ed 7



u. yellow-green

v. red

w. blue

x. infrared


q. a single-tube color pickup

GROBTV_Q&A


q. Plumbicon

r. Vidicon

s. Saticon

t. image orthicon


q. non-composite video

r. black burst

s. generator lock video

t. composite video


w.

low beam current x. high gain in pre-amplifier

y. excessive gamma

z. insufficient scanning width

r. a plumbicon

s. a black-and-white camera

t. a saticon


q. electrical focus

r. optical focus

s. beam current

t. shading


n. SEGo. CCU

p. ENG camera

q. sync generator


m. 2.2

n. 0.4545

o. 1.0

p. 1.4

GROBTV_Q&A


u. Plumbicon

v. Vidicon

w. Saticon

x. image orthicon


u. non-composite video

v. black burst

w. generator lock video

x. composite video


aa. low beam current

bb. high gain in pre-amplifier

cc. excessive gamma

7/30/2019 Grobtv 10th Ed 7


dd. insufficient scanning width


x. plumbicon

y. vidicon

z. saticon

aa. iconoscope

The part of the visible spectrum where camera pick-up tubes have the greatest outputy. yellow-green

z. red

u. a single-tube color pickup

v. a plumbicon

w. a black-and-white camera

x. a saticon


u. electrical focus

y. image orthicon


y. non-composite video


y.

a single-tube color pickupz. a plumbicon

aa. a black-and-white camera

bb. a saticon


v. electrical focus

w. optical focus

x. beam current

y. shading


bb. plumbicon

cc. vidicon

dd. saticon

ee. iconoscope

The part of the visible spectrum where camera pick-up tubes have the greatest outputaa. yellow-green

bb. red

cc. blue

dd. infrared

z. generator lock video

aa. composite video


ee. low beam current

ff. high gain in pre-amplifier

gg. excessive gamma

hh. insufficient scanning width


ff. plumbicon

grobtv 10th ed 7

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