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1. The specific Gravity of a liquid can only be measured using the following instrument:
A· scale
B. hydrometer
C. thermometer
D. manometer - Correct Answer: B. hydrometer
2. The symbol *PIE*, is equivalent to
A. 1.414
B. .414
C. 3.14
D. .707 - Correct Answer: C. 3.14
3. The amount of heat it takes to raise one pound of water one degree Fahrenheit is know
as a/an
A. Joule
B. Calorie
C. Watt
D. BTU - Correct Answer: D. BTU
4. When should a person designated as a attendant (hole watch) attempt to rescue a
worker that is trapped?
A. As soon as the worker fails to respond.
B. As soon as he feels it is safe.
, C. Never
D. As soon as he notifies the rescue team - Correct Answer: C. Never
5. What is the required ~istance for a crane to maintain from a 50Kv power line?
A. 15'
B. 10'
C. 20'
D. 0' as long as the power line is insulated. - Correct Answer: B. 10'
6. Which rigging configuration has the greatest sling strength?
A. Choked
B. Straight
C. Basket
D. Casket - Correct Answer: C. Basket
7. When lifting objects with sharp edges, you should use a:
A. Softener
B. Shackle
C. File
D. Round the sharp edge - Correct Answer: A. Softener
8. What are the three types of steam traps?
A. Thermostatic, Bucket, Float
B. Float, Thermodynamic, Bucket
C. Thermostatic, Thermodynamic, and Mechanical
D. Orifice, Float and Thermostatic, and Bucket - Correct Answer: C.
Thermostatic, Thermodynamic, and Mechanical
9. What should be done to prepare a flange for the gasket installation?
A. Grind the faces
B. Lubricate the faces
C. Nothing
D. Remove any paint or rust. - Correct Answer: D. Remove any paint or rust.
,10. A direct acting thermostat is used to
A. Increase the pressure when the temperature increases
B. Control a normally open valve
C. Control a normally closed valve
D. Decrease pressure when the temperature increases - Correct Answer: A.
Increase the pressure when the temperature increases
11. What is the purpose of the oxygen and acetylene regulators?
A. To protect the cylinders from debris
B. To act as a handle to carry the cylinders
C. To change the liquid into a usable gas
D. To reduce the pressures from the cylinder to safe and workable pressures -
Correct Answer: D. To reduce the pressures from the cylinder to safe and
workable pressures
12. The ____ is used to protect the weld puddle from contamination in the SMAW process.
A. Arc
B. Flux
C. Slag
D. Argon - Correct Answer: B. Flux
13. What does the G stand for in 2G, 5G, and 6G weld positions?
A. Groove
B. Gap
C. Gravity
D. Gauge - Correct Answer: A. Groove
14. What is Hydronics?
A. The science of waves
B. The science of heat transfer using water
C. The science of water flow
, D. The science of refrigerant flow - Correct Answer: B. The science of heat
transfer using water
15. What effect does the fill pressure (static) have on a closed loop pumping system?
A. It makes the pump more efficient
B. It makes the pump less efficient
C. It causes the pump to overheat
D. None - Correct Answer: D. None
16. What has the largest effect on pump alignment?
A. Flange rotation
B. Pipe strain
C. Pump horse power
D. Inertia - Correct Answer: B. Pipe strain
17. A cooling tower must have a ________ or be open-site.
A. Backflow preventer
B. RSP
C. Flow Meter
D. Valve - Correct Answer: A. Backflow preventer
18. In a refrigeration system, a condensable gas is
A. Ammonia
B. Air
C. Carbon Dioxide
D. Oxygen - Correct Answer: A. Ammonia
19. What causes pressure drop?
A. Increase in friction
B. Decrease in velocity
C. Decrease in friction
D. Temperature - Correct Answer: A. Increase in friction