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CWEA E/I Grade 2 Exam Questions with Correct Answers| Latest Update 2026/27
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Receiving job instruction and planning equipment use are part of: a. craft data. b. job preparation. c. work factors. d. leveled time. b. job preparation Anticipating other tasks or problems: a. usually creates additional problems. b. wastes time. c. sharply reduces the number of emergencies. d. often is not worth the effort. c sharply reduces the number of emergencies
Making job planning a group effort: a. wastes time. b. improves productivity. c. causes confusion. d. All the above b improves productivity Rubber safety gloves should be tested how often? a Every 12 months b. Every 9 months c. Every 6 months d. Every 4 months a Every 12 months Rubber safety blankets should be tested how often? a. Every 6 months b. Every 9 months c. Every 12 months d. Every 18 months b Every 9 months
The relationship between an electric current and a magnetic field is called: a. matter. b. atoms. c. electromagnetism. d. element c electromagnetism Electrons flowing from one place to another make a: a. current. b. track. c. circuit. d. channel a current Between two objects, the development of static charges creates a: a. potential difference.
b. battery. c. thermocouple. d. resistance a potential difference A coil of wire that carries an electric current is called a: a. conductor. b. thermocouple. c. electrocurrent. d. electromagnet d electromagnet Metals are good conductors because they have many: a. insulators. b. free electrons. c. resistors. d. inductors. b free electrons
d. Potential difference d Potential difference A rate of flow of one coulomb per second is called one: a. ampere. b. joule. c. volt. d. olhum. a ampere What is the name for the proportional relationship between potential difference and current? a. Voltage drop b. Voltmeter c. Ampmeter d. Watt meter b Voltmeter What is the unit of measurement for capacitive
reactance? a. Volts b. Ohms c. Amps d. Power factor b Ohms Power companies use AC generators because AC can be sent over long distances: a. at high cost. b. at low cost. c. slower. d. faster. b at low cost What device changes alternating current to a different combination of voltage and current? a. Generator b. Capacitor c. Alternator d. Transformer d Transformer
b. size. c. covering. d. shape. c covering. What kind of starter provides full-voltage starting? a. Across-the-line b. Synchronous start c. Reactor starter d. Reduced-voltage start a Across-the-line The choice between across-the-line starting and reduced-voltage starting depends in part on the size of the: a. starter. b. wire size. c. motor. d. breaker. c motor.
The most important requirement for good maintenance of motor starters is: a. good record keeping. b. safety of personnel. c. proper lubrication. d. clean, dry insulation c proper lubrication A reversing starter reverses a three-phase motor by interchanging: a. main contacts. b. two of the line leads. c. all of the line leads. d. control voltage. b two of the line leads What kind of protection is provided in a manual across-the-line three-phase motor control? a. Overload protection only b. Ground-fault protection only c. Short-circuit protection only
circuit with a resistance of 60 ohms, using Ohm's Law? a. 0.5 amperes b. 2.0 amperes c. 30 amperes d. 10 amperes b 2.0 amperes Solving for I: I = ER Substituting values into the equation: I = 120 volts/60 Ohms = 2 amperes What is the current for a 120-volt circuit with a 1440-watt load? a. 0.083 amperes b. 10 amperes c. 12 amperes d. 15 amperes c 12 amperes Since P = EI, current can be determined as I = P/E Substituting values into the equation: I = 1440 watts /120 volts = 12 amperes
What is the current of a circuit that consumes 625 watts through a 12.75-ohm resistor? a. 3.8 amperes b. 7 amperes c. 49 amperes d. 175 amperes b 7 amperes E = IR and P = EI Substituting the first equation into the second: P = (IR)I P = I Squared x R Solving for I: I Squared = P / R I = SqRt P/R I = SqRt 625/12. I = SqRt 49 I = 7 amps What is the ampere load of a single-phase 1/2 horsepower 115-volt motor, if the motor has an efficiency rating 92% and power factor of 80%? a. 9.5 amperes
and the set point is called the: a. gap. b. error. c. feedback. d. span. b error The signal pressure is usually directly proportional to the process: a. span. b. level. c. variable. d. loop. c variable Offset is the difference between the actual maintained value of the measured variable and: a. the set-point. b. the span. c. zero. d. the level.
a the set-point Another name for built-in error that usually occurs in a proportional control system is: a. deadband. b. offset. c. set point. d. span. b offset An automatic controller always compares a measured variable to: a. zero. b. span. c. reset. d. set point. d set point. The specific value at which an automatic control holds a process variable is called the:
The most commonly used type of diagram in process control is: a. a loop diagram. b. an installation drawing. c. a piping and instrument drawing. d. a location drawing. c a piping and instrument drawing A signal from a measuring device to the controller is called: a. zero. b. correcting. c. span. d. feedback. d feedback. In a closed loop control system, the control process of measuring, comparing, computing and connecting goes on: a. continually.
b. intermittently. c. never. d. whenever the operator takes some action. a continually A control system in which the output is regulated only by changes from outside the process is called: a. open loop. b. closed loop. c. set point. d. measuring. a open loop. A common converter used in process control is the I/P converter, which converts ________ signals to ________ signals. a. zero, span b. analog, digital c. current, pneumatic d. linear, nonlinear c current, pneumatic
