TMU Practical Evaluations 3

Question 1

In a TMU electrical engineering practical, what instrument measures electrical resistance in a circuit?

Accepted Answer

Ohmmeter

Answer

An ohmmeter measures resistance in ohms; the other instruments measure voltage, current, and power respectively.

Question 2

A TMU architecture student is presenting a scale model. If the scale is 1:50, and a wall in the model is 4 cm long, how long is the actual wall?

Accepted Answer

200 cm

Answer

Multiplying the model length (4 cm) by the scale factor (50) gives 200 cm, or 2 meters, for the actual wall length.

Question 3

During a TMU chemistry practical, a student must dilute a concentrated acid. What is the safe procedure?

Accepted Answer

Add acid slowly to water while stirring

Answer

Always add acid to water (not water to acid) because the heat generated is absorbed by the larger water volume, preventing dangerous spattering.

Question 4

In a TMU communications practical, what does signal-to-noise ratio (SNR) measure?

Accepted Answer

The ratio of useful signal power to background noise power

Answer

SNR compares the level of a desired signal to the level of background noise, with higher SNR indicating cleaner signal quality.

Question 5

When conducting a TMU social science practical involving human participants, which ethical requirement is paramount?

Accepted Answer

Obtaining informed consent from all participants

Answer

Informed consent is the foundational ethical requirement ensuring participants understand the study and voluntarily agree to take part.

(TMU) Toronto Metropolitan University Exam Practice Test