Engineering

Question 1

1A gear of 20 teeth drives a gear of 60 teeth. The velocity ratio is

Hard

A. 40 B. 3 C. 1/3 D. 80

Question 2

2Bronze is an alloy of copper and

Easy

A. zinc B. tin C. iron D. lead

Question 3

3A beam supported at both ends is a

Easy

A. column B. cantilever C. simply supported beam D. arch

Question 4

4Resistance to scratching and wear is

Easy

A. toughness B. hardness C. ductility D. malleability

Question 5

5A microcontroller such as the Arduino contains

Easy

A. only a battery B. a hard disk C. a processor, memory and input/output pins on one chip D. only a screen

Question 6

6Heat moves through a solid metal rod mainly by

Easy

A. evaporation B. radiation C. convection D. conduction

Question 7

7A triangle is used in trusses because it

Easy

A. is rigid and does not change shape under load B. looks attractive C. is cheaper to paint D. uses more material

Question 8

8A force of 2,000 N acts on an area of 0.01 m². What is the stress?

Easy

A. 200,000 Pa B. 20 Pa C. 200 Pa D. 20,000 Pa

Question 9

9A quick, low-cost model used to test an idea early is a

Easy

A. low-fidelity prototype B. invoice C. final product D. patent

Question 10

10Tension in a member means it is being

Easy

A. twisted B. pulled C. pushed D. bent