CE025 Unit 302_ post Exam Mechanic Review Questions and Complete Solutions Graded A+
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Course
Mechanics NEIEP
Institution
Mechanics NEIEP
1. A waveform that has unequal rise and fall times with one being instanta- neous is called a (blank) wave. Answer: Sawtooth
2. Refer to figure 1. Which of the following statements is correct? Answer: Si is lagging sine wave B.
3. Which of the following statements is correct regarding wye...
CE025 Unit 302_ post Exam
Mechanic Review Questions
and Complete Solutions
Graded A+
Denning Muriithi [Date] [Course title]
, CE025 Unit 302: post exam mechanic
review
1.A waveform that has unequal rise and fall times with one being
instanta- neous is called a (blank) wave. Answer: Sawtooth
2.Refer to figure 1. Which of the following statements is correct? ne wave
Answer: Si is lagging sine wave B. A
3.Which of the following statements is correct regarding wye stator
connec- tions? Answer: Ther is a neutral or common connection for all
three phases
4.If a two-speed AC motor having a ratio of 8 Answer: 1 has a rated speed of
225 FPM, what is the leveling speed? Answer: 28 FPM
5.Why are even minor electrical shocks dangerous? Answer: The
involuntary reflex to pull away
6.Which safety device detects small imbalances between the hot and
neutral current carrying conductors? Answer: GFCI
7.Which of the following is a correct statement about magnetic poles?
Answer: Like poles repel
8.Refer to figure 2. If current is flowing continuously from left tot
righ the conductor, which of the following statements is correct?through
Answer: The m lines of force will be in the counter clockwiseagnetic
direction
9.Which device can be used to measure current in a circuit without
discon- necting any wiring? Answer: Clamp-on Meter
10.The moveable portion of a relay is referred to as the (blank). Answer:
Armature
11.The difference of electrical potential between two points is called (blank)-
Answer: Voltage
12.A wire-wound resistor in a series circuit with a supply voltage of 45 VDC
has a nominal value of 64 ohms. It develops a problem, which results in it
being 40% partially shorted. The circuit fuse is rated at 1 amp. Which of the
following statements is correct? Answer: This represents a shorted
condition that will not open the fuse
13.Which of the following is equivalent to 35 micro amps? Answer: .000035
amperes
14.The period of a sine wave is .0083 seconds. What is the frequency?
2/
8
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