BASIC INSTRUMENTATION CH.3

Question 1

WHEN FORCE IS A ADDED THE VALVE WILL CLOSE OR PUSHING UP ON THE VALVE STEM CAUSES THE STEM TO CLOSE IS MEANT BY A REVERSE ACTING VALVE

Answer 1

TRUE

Question 2

VALVE BODIES CONSIST OF WHAT

Answer 2

3-WAY VLV BODIES
GATE VLV BODIES
SMALL FLOW RATE BODIES
BUTTERFLY VLV BODIES

Question 3

IT IS THE VOLUME. OF WATER IN GALLONS THAT WILL FLOW THROUGH THE WIDE OPEN VLV PER MINUTE WITH A PRESSURE DROP OF ONE PSI ACROSS THE VLV WOULD BEST DESCRIBE COEFFICIENT

Answer 3

TRUE

Question 4

THE TERM VLV TRIM REFERS TO THE KIND OF MATERIAL USED TO MAKE EXTERNAL VLV PARTS

Answer 4

FALSE

Question 5

WHAT QUALITIES MUST A VLV STUFFING BOX POSSES

Answer 5

LEAK RESISTENT
CREATE MINIMUM FRICTION

Question 6

A CONTROLLED VOLUME PUMPS OUTPUT IS PROPORTIONAL TO THE SQUARE OF ITS INPUT SPEED

Answer 6

FALSE

Question 7

WHAT IS THE STANDARD AIR PRESSURE USED FOR CONTROL PURPOSES

Answer 7

3-15 PSIG

Question 8

ELECTRIC HYDRAULIC IS THE ELECTRIC SIGNAL THAT CHANGES A HYDRAULIC ACTUATOR TO GET THE FORCE NECESSARY FOR THE CHANGE

Answer 8

TRUE

Question 9

NAME 2 TYPES OF ELECTRICALLY POWERED DEVICES THAT POSITION FINAL CONTROL ELEMENTS

Answer 9

SOLENOID
ELECTRIC MOTOR OPERATED

Question 10

WHAT ARE THE 2 TYPES OF PNEUMATIC PISTON ACTUATORS

Answer 10

PROPORTIONAL
ON - OFF SERVICE