CTS certification prep questions with accurate
answers
A client requires a front projection system. What drawings should be
requested from the client to select the appropriate lens? Ans✓✓✓
Answer: Reflected ceiling plans and elevations.
Rationale: Reflected ceiling plans show distance and elevations show
screen size.
Reference: CTS Exam Study Guide, 2nd Edition, Chapter 12
A client requires a new boardroom. The sales person and engineer are
sent to the premises to survey the facility and discuss the opportunity
with the client. This process is best described as a ____________.
Ans✓✓✓ Answer: Needs Analysis.
Rationale: This is the definition of a needs analysis.
Reference: CTS Study Guide, 2nd Edition, Chapter 11, Gathering
Customer Information, pp. 191-193
A contract is awarded to an AV contractor after a ___________.
Ans✓✓✓ Answer: Review of proposals and price negotiations.
Rationale: Vendor selection process is well understood.
,Reference: CTS Exam Guide, 2nd Edition, Chapter 15, pp. 290 - 291
A dimmer rack with a constant load capability is powering twenty-four
incandescent lights during a stage production. The dinner rack is running
steady 230 VAC supply and averaging approximately 98 amps draw.
Suddenly the line voltage drops to 211 VAC.
Calculate the expected amperage draw. Ans✓✓✓ Answer: 90 amps.
Rationale: This is to test familiarity with Ohm's law and the
relationships between voltage, current, and resistance.
- The description tells us the load is constant. This means that resistance
is constant.
- According to Ohm'a law, Voltage = Current (amps) multiplied by the
load (ohms)
- So, 230 volts divides by 98 amps give a load of 2.35 ohms.
- If the voltage drops but the load remains consistent, then the current
must also decrease.
-So, 211 volts divided by 2.35 ohms = 89.79, rounded to 90 ohms.
, Note that lamps and dimmers are a resistive load, not a constant power
load such as an amplifier or a projector. Therefore, the current, will
decrease when the voltage drops, not increase. The answer will be
different with constant power devices such as amplifiers and projectors.
Reference: CTS Exam Guide, 2nd Edition, Chapter 9, pp. 161-164
A display has a problem with the intensity and hue of color information.
Which tool should be used to this?
A) DSP
B) Vectorscope
C) Oscilloscope
D) Waveform Monitor Ans✓✓✓ Answer: B) Vectorscope.
Rationale: Identifying the correct tool to monitor the video signal. While
two of the other distractors are also used for monitoring the video signal,
only the wave form monitor can provide information on hue adjustment
together with information on signal amplitude.
Reference: CTS Exam Guide, 2nd Edition, p. 577
answers
A client requires a front projection system. What drawings should be
requested from the client to select the appropriate lens? Ans✓✓✓
Answer: Reflected ceiling plans and elevations.
Rationale: Reflected ceiling plans show distance and elevations show
screen size.
Reference: CTS Exam Study Guide, 2nd Edition, Chapter 12
A client requires a new boardroom. The sales person and engineer are
sent to the premises to survey the facility and discuss the opportunity
with the client. This process is best described as a ____________.
Ans✓✓✓ Answer: Needs Analysis.
Rationale: This is the definition of a needs analysis.
Reference: CTS Study Guide, 2nd Edition, Chapter 11, Gathering
Customer Information, pp. 191-193
A contract is awarded to an AV contractor after a ___________.
Ans✓✓✓ Answer: Review of proposals and price negotiations.
Rationale: Vendor selection process is well understood.
,Reference: CTS Exam Guide, 2nd Edition, Chapter 15, pp. 290 - 291
A dimmer rack with a constant load capability is powering twenty-four
incandescent lights during a stage production. The dinner rack is running
steady 230 VAC supply and averaging approximately 98 amps draw.
Suddenly the line voltage drops to 211 VAC.
Calculate the expected amperage draw. Ans✓✓✓ Answer: 90 amps.
Rationale: This is to test familiarity with Ohm's law and the
relationships between voltage, current, and resistance.
- The description tells us the load is constant. This means that resistance
is constant.
- According to Ohm'a law, Voltage = Current (amps) multiplied by the
load (ohms)
- So, 230 volts divides by 98 amps give a load of 2.35 ohms.
- If the voltage drops but the load remains consistent, then the current
must also decrease.
-So, 211 volts divided by 2.35 ohms = 89.79, rounded to 90 ohms.
, Note that lamps and dimmers are a resistive load, not a constant power
load such as an amplifier or a projector. Therefore, the current, will
decrease when the voltage drops, not increase. The answer will be
different with constant power devices such as amplifiers and projectors.
Reference: CTS Exam Guide, 2nd Edition, Chapter 9, pp. 161-164
A display has a problem with the intensity and hue of color information.
Which tool should be used to this?
A) DSP
B) Vectorscope
C) Oscilloscope
D) Waveform Monitor Ans✓✓✓ Answer: B) Vectorscope.
Rationale: Identifying the correct tool to monitor the video signal. While
two of the other distractors are also used for monitoring the video signal,
only the wave form monitor can provide information on hue adjustment
together with information on signal amplitude.
Reference: CTS Exam Guide, 2nd Edition, p. 577
