Question 4171:

• WAEC 2019

Which of the following materials does not serve as a safety device in electrical circuits?

A. Connecting wires
B. Earth wire
C. Fuse
D. Switch

Question 4172:

• WAEC 2019

Which of the following liquids has the highest surface tension?

A. Soapy water
B. Cold water
C. Hot water
D. Oily water

Question 4173:

• WAEC 2019

The nucleon and proton numbers of a neutral atom of an element are 238 and 92 respectively. Determine the number of neutrons in the atom.

A. 119
B. 330
C. 165
D. 146

Question 4174:

• WAEC 2019

An instrument used to measure relative humidity is the?

A. Hygrometer
B. Hydrometer
C. Pyrometer
D. Manometer

Question 4175:

• WAEC 2019

The area under a velocity-time graph represents

A. Speed
B. Acceleration
C. Moment
D. Distance