ABSA Practice 4A - 1

1 of 150

Term



( 4-081-1.20) The yoke that supports the main components of the DC
machine is frequently made of:
Select one:
a. Aluminum
b. Steel or iron
c. Copper or brass
d. Composite materials



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c a




b d


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, 2 of 150

Term



(4-062-1.2) Retractable soot blowers are installed in a boiler's radiant
heat transfer area including the.
Select one:
a. Reheater
b. Air preheater
c. Secondary air heater
d. Economizer



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c a




b d


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3 of 150

Term



(4-010-2.2) A lever, 10m long, pivots at one end and has a load of 900
kg suspended from the other end. What upward force must be
applied at the midpoint of the lever to obtain equilibrium?
Select one:
a. 882.9 N
b. 4414.4 N

,c. 8829 N
d. 17 658 N

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a b




c d


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4 of 150

Term



(4A-30-12-01-01-07) The approximate amount of excess air for
combustion of fuel oil should be:
Select one:
a. 25 - 30%
b. 10 - 15%
c. 2 - 3%
d. 3 - 10%



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b d




c a


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, 5 of 150

Term



(4-017-1.7) The input to a 93.33% efficient belt drive system is 75kW.
What is the output?
Select one:
a. 70 kW
b. 80.36 kW
c. 72.5 Watts
d. 75 kW



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d a




b c


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