Quiz Questions - WCS EL A

Question 1 1 Marks

What is the work done in joules if a load of 15.5 kg is lifted through a height of 4.4 metres?

A

639 Joules

B

649 Joules

C

659 Joules

D

669 Joules

Question 2 1 Marks

What is the work done in unit time?

A

Energy

B

Power

C

Force

D

Acceleration

Question 3 1 Marks

What is the ratio of power output to power input?

A

Work

B

Energy

C

Efficiency

D

Acceleration

Question 4 1 Marks

What is the capacity of a body to do work is called?

A

Energy

B

Power

C

Acceleration

D

Force

Question 5 1 Marks

How many watts for 1 horse power in British system?

A

726 watts

B

736 watts

C

746 watts

D

756 watts

Question 6 1 Marks

What is the work done, if a force of 250 newtons acted upon a body and the body has been moved through a distance of 15 metres?

A

3720 Joules

B

3730 Joules

C

3740 Joules

D

3750 Joules

Question 7 1 Marks

What is the total resistance if three resistances of 3 ohms, 9 ohms and 5 ohms are connected in series?

A

11 ohms

B

7 ohm

C

17 ohms

D

1/17 ohms

Question 8 1 Marks

Which law states that at constant termperature the current passing through a closed circuit is directly proportional to the potential difference and inversely proportional to the resistance?

A

Ohm's law

B

Lenz's law

C

Newton's law

D

Hooke's law

Question 9 1 Marks

Which alloy used in electric lamp as filament?

A

Cobalt

B

Vanadium

C

Tungsten

D

Silicon

Question 10 1 Marks

What does EMF stands for?

A

Electronic Magnetic Force

B

Electro Motive Force

C

Electro Magnetic Force

D

Electromated Force