Automation System - Section 1 (4)

25.

The general type of process found in industry is:

A.	discrete parts
B.	continuous
C.	batch
D.	All of the above
E.	None of the above

Answer: Option D

Explanation:

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26.

How is the integral mode implemented using analog methods?

A.	Op amp and resistors
B.	Op amp and a capacitor
C.	Op amp and an RC network to place the error voltage across the capacitor
D.	All of the above
E.	None of the above

Answer: Option B

Explanation:

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27.

The formula for memory capacity is:

A.	MC = N/2
B.	MC = 2/N
C.	MC = N squared.
D.	MC -2 to the Nth power
E.	None of the above

Answer: Option D

Explanation:

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28.

A drum timer is a good example of:

A.	an output actuator
B.	an input sensor
C.	a position sensor
D.	a sequence controller
E.	None of the above

Answer: Option D

Explanation:

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29.

Semiconductor devices:

A.	are less reliable than electroÂ¬mechanical components
B.	usually have a very short MTBF (mean time between failure)
C.	have a very short infant mortality period
D.	All of the above
E.	None of the above

Answer: Option C

Explanation:

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30.

There are several procedures you can implement to provide maximum security. The most important of these is:

A.	do not leave training manuals unsecured
B.	run regular simulated tests using TARP (testing of Applications Recovery Planes)
C.	Verify the reputation of the people installing your system
D.	do not allow unbonded service people to work on your equipment
E.	None of the above

Answer: Option B

Explanation:

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31.

Digital signals:

A.	can have three possible levels
B.	are assigned values of 1 or 0 depending on the voltage level
C.	have a sinusoidal shape.
D.	have a frequency measured in units of hertz
E.	None of the above

Answer: Option B

Explanation:

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32.

The program counter:

A.	decides which program to run
B.	counts the number of instructions that have been executed
C.	contains the address of the next instruction to be executed
D.	is where arithmetic is done in a computer.
E.	None of the above

Answer: Option C

Explanation:

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