MATH 1ST YEAR 2ND TEST

What is the carbon percentage in medium carbon steel?

• 0.05% to 0.15%

  
  

• 0.15% to 0.25%

  
  

• 0.25% to 0.5%

  
  

• 0.5% to 1.5%

  
  

Which among the following is an insulator?

• Copper
  

• Aluminium

• Silver

• Mica

How many ergs for 1 Joule?

• 103 ergs

• 105 ergs

• 107 ergs

• 109 ergs

What is the work done in unit time?

• Energy

• Power

• Force

• Acceleration

What is the acceleration of a car if the speed of the car has increased from 25 km per hour to 40 km per hour in one minute?

• 0.059 m/sec2

• 0.59 m/sec2

• 0.069 m/sec2

• 0.69 m/sec2

What is the unit of acceleration of an object?

• Metre/second
  

• Metre/second2

• Metre/minutes

• Metre/minutes2

What is the unit for velocity?

• Metre/second

• Metre/second2

• Metre/minute

• Metre/hour

What is the formula for speed?

• Distance covered
  

• Change in velocity
  

• Distance in definite
  

• 
  Change in momentum/Time
  

Which rubber is used as insulator for power cables and control wires?

• Butyl

• Hypalone

• Silicon

• Nitrite butadiene

Which insulating material is used for making switches?

• Porcelain

• PVC

• Bakelite

• Ebonite