Astronomy quiz question: Camelopardalis from lowest to highest position in sky

Astronomy 210 Quiz 1, fall semester 2013
Cuesta College, San Luis Obispo, CA

The diagram at right shows positions of constellations and stars near the horizon, as seen at 9:00 PM by an observer in 
San Luis Obispo, CA. Ignore daylight saving 
time. Assume you can see stars in daylight. How many hours will pass 
until the constellation Camelopardalis 
reaches its highest point in the sky?
(A) 1 hour.
(B) 6 hours.
(C) 12 hours.
(D) 24 hours.

Correct answer (highlight to unhide): (C)

Using a starwheel (planisphere), the sky as shown is 9:00 PM on July 20 (or some other start time/date can be selected). Camelopardalis will be above Polaris at 9:00 AM on the next day, July 21, approximately 12 hours later.

Section 70158
Exam code: quiz01n9YE
(A) : 1 student
(B) : 7 students
(C) : 22 students
(D) : 1 student

Success level: 73% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.51