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Mechanical Energy Convertors
Test Description: 10.1 Principles of Technology
Instructions: Answer all questions to get your test result.
1) An alternator converts the mechanical energy of a rotating armature into what other form of energy?
A
mechanical
B
fluid
C
electrical
D
thermal
2) An inertia welder converts the mechanical rotational energy of a work piece into what kind of energy at the weld point?
A
mechanical
B
electrical
C
fluid
D
thermal
3) A fan converts the rotational mechanical energy of a fan shaft or blade into what other kind of energy
A
electrical
B
thermal
C
fluid
D
mechanical
4) Pumps are mechanical energy convertors that change input mechanical energy into what other form of energy?
A
mechanical
B
thermal
C
fluid
D
electrical
5) A pulley is which of the following?
A
force transformer
B
fluid energy convertor
C
electrical energy convertor
D
mechanical energy convertor
6) For energy convertor efficiency to be calculated correctly, energy output units must be in the same units as what?
A
work
B
convertor
C
power
D
energy input
7) The percent efficiency of an energy convertor equals what divided by what?
A
work by power
B
energy output by energy input
C
power by work
D
energy input by energy output
8) 1 btu equals how many foot pounds?
A
746
B
.0013
C
1055
D
778
9) 1 horsepower equals how many watts?
A
1055
B
.0013
C
550
D
746
10) 1 kg equals how many newtons?
A
1055
B
550
C
9.8
D
,102
*select an answer for all questions
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