What does an orifice plate use to create a measurable pressure drop?

a. Pressure taps
b. A movable pressure plate
c. A fixed-area restriction
d. Variable vanes on a plate


c. A fixed-area restriction

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How many tapped holes are in the machined housing?

Refer to Drawing Number 4190487 R0 and answer the following questions.

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The ________________ is the area around exposed energized equipment that is considered as hazardous as actually being in contact with the energized components.

A. arc flash boundary B. restricted approach boundary C. limited approach boundary D. prohibited approach boundary

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Ten 10 k? resistors are connected in series across a 24-V source. The total voltage across all the resistors is

A) 24 V B) 10 V C) 2.4 V D) 2.4 mV

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Which of the following is not true regarding assembly drawings?

A. Assembly drawings have few overall dimensions. B. Assembly drawings generally do not contain hidden lines. C. Assembly drawings must call off each part that is used to make up the assembly. D. Assembly drawings should list only general information for purchased parts.

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