Questions

Multiple-choice questions you can practise one by one. Open a question, tap an answer and see at once whether it is right. For a random set, try Quick practice.

941 questions

• What is the HCF of 12 and 18?

  Reasoning, Aptitude & IPR Essentials for Competitive Examinations › Unit I: Quantitative Aptitude · Easy

• Which number is divisible by 3?

  Reasoning, Aptitude & IPR Essentials for Competitive Examinations › Unit I: Quantitative Aptitude · Easy

• What is the remainder when 27 is divided by 5?

  Reasoning, Aptitude & IPR Essentials for Competitive Examinations › Unit I: Quantitative Aptitude · Easy

• Which of the following is an even number?

  Reasoning, Aptitude & IPR Essentials for Competitive Examinations › Unit I: Quantitative Aptitude · Easy

• What is the smallest prime number?

  Reasoning, Aptitude & IPR Essentials for Competitive Examinations › Unit I: Quantitative Aptitude · Easy

• Which pair is correct?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Medium

• Find correctly matched pair?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Medium

• Which pair shown below is correctly matched?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Medium

• Why can an alloy have higher resistivity than its pure base metal?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• What does the band model explain most directly?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• Why can hardness alone be insufficient for an impact-loaded insulator?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• Can a material be both a good conductor and ferromagnetic?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• Why does a large band gap usually mean low intrinsic conductivity at room temperature?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• Can a material have high thermal conductivity but low electrical conductivity?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• A uniform wire's length doubles with area and temperature constant. Its resistance ideally:

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• Why does a pentavalent impurity usually make silicon N-type?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• Why does band theory describe solids rather than only isolated atoms?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• A semiconductor has a nearly full valence band and a small gap. Conductivity can be raised by:

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• What happens to intrinsic carrier concentrations when a semiconductor is heated?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard

• A wire is stretched with volume approximately constant. What happens to resistance?

  Electrical Engineering Materials › Unit 1: Introduction to Materials · Hard