PHEP_33B

Question 1

Supervisory control differs from remote control mainly by the use of:

a) digital feeders
b) coded signals
c) frequency bias control
d) relay devices

Answer 1

b) coded signals ref: p. 5

Question 2

Telemetering equipment provides a means for converting remotely sensed information into a form:

a) of bias control
b) suitable for transmission
c) suitable for error detection
d) for flat frequency control

Answer 2

b) suitable for transmission ref: p. 9

Question 3

In any system consisting of combination of manual and automatic control:

a) menus are generally provided for interlocking the various controls
b) the automatic functions may be bypassed when the switch is turned to manual
c) protective relay operation will take procedure over other types of operations
d) all above

Answer 3

d) all above ref: p. 3

Question 4

Supervisory control systems differ mainly from other classes of control systems:

a) in the type of the protective relays used
b) in the manner in which commands and transmitted and received
c) in the type of control relays used
d) all three

Answer 4

d) all three (B) ref: p. 2, 5 & 7

Question 5

Double transmission is an expression relating to supervisory controls and refers mainly to:

a) location
b) command
c) security
d) class

Answer 5

c) security ref: p. 7

Question 6

In a typical supervisory control operation:

a) only one button at the master station is used to initiate the complete series of events
b) a disagreement lamp will light if the wrong button is pushed
c) the first button pushed at the master station normally sets up the circuitry needed to receive the action order to follow
d) a coded signal is returned to the master station only if the action order is not completed

Answer 6

c) the first button pushed at the master station normally sets up the circuitry needed to receive the action order to follow ref: p. 7

Question 7

The capacity of most supervisory control equipment is determined by:

a) the number of points provided
b) the size of the chaos
c) the type of communication channel used
d) the capacity of telemetering equipment

Answer 7

a) the number of points provided ref: p. 28

Question 8

The reproduction at a convenient location of measurements made at a remote point is called:

a) analog
b) telemetering
c) digital
d) PAM

Answer 8

b) telemetering ref: p. 9

Question 9

In comparing the merits of analog telemetering with those of digital telemetering it would be correct to say:

a) that the latter is superior to the former in the means provided for recording data in a continuous format
b) the former is superior to the latter in its ability to handle large quanities of telemetered information
c) the latter would less likely be used if a high degree of accuracy in monitoring is requirement
d) undetectable errors can introduced at all points in the former but only at the sending end of the latter

Answer 9

‘d) undetectable errors can introduced at all points in the former but only at the sending end of the latter ref: p. 16

Question 10

A general digital information handling system would most likely include the ability to:

a) convert solid-state signals to relay actions
b) convert analog signals to digital information
c) selectively read information which has been stored in memory
d) all three

Answer 10

d) all three ref: p. 15