Pipefitter Apprentice Exam Questions & answers

Pipefitter Apprentice Exam
Which of the following meters doesn't change its reading due to pressure differences?

A. Thermometer
B. Altimeter
C. Manometer
D. Ammeter
E. Barometer - ANS-D. Ammeter

Which of the following components restricts the electric current flow to a single direction?

A. Condenser
B. Diode
C. Resistor
D. Transducer
E. Switch - ANS-B. Diode

Which of the following, if increased, would not require exertion of additional force to lift an
object?

A. Gravity
B. Friction
C. Effort
D. Load Mass - ANS-C. Effort

Effort - ANS-the force applied in order to lift the weight.

Gravity - ANS-a constant force which gives weight to objects.

Friction - ANS-a force that resists the relative motion of two objects in contact.

Diode - ANS-an electrical component which is mainly used to restrict electrical flow to one
direction - similar to a check valve in water flow - by having high resistance in one direction and
low resistance in the other.

Watt - ANS-the electrical unit of electric power. It measures the rate of consumed energy, or
specifies the rate at which electrical energy is dissipated.

Which of the following is a measurement unit for electrical power?

A. Ampere
B. Ohm