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“Engineering job preparation guide for freshers and experienced candidates. Number of Engineering frequently asked questions(FAQs) asked in many interviews”

82 Engineering Questions And Answers

41⟩ The angle of inclination of a vehicle when moving along a circular path __________ upon its mass. A. depends B. does not depend

Option B

(does not depend)

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42⟩ A smooth cylinder lying on its convex surface remains in __________ equilibrium. A. stable B. unstable C. neutral

Option B

(unstable)

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43⟩ The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is A. sin θ B. cos θ C. tan θ D. cosec θ

Option A

(sin θ)

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44⟩ If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is A. 30° B. 60° C. 90° D. 120°

Option D

(120°)

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45⟩ According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction. A. True B. False

Option B

(False)

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46⟩ The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion. A. Agree B. Disagree

Option A

(Agree)

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47⟩ Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity A. v B. v/2 C. v/4 D. v/8

Option B

(v/2)

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48⟩ Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies. A. Yes B. No

Option A

(Yes)

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49⟩ The friction experienced by a body, when in motion, is known as A. rolling friction B. dynamic friction C. limiting friction D. static friction

Option B

(dynamic friction)

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50⟩ The coefficient of restitution for elastic bodies is one. A. Correct B. Incorrect

Option B

(Incorrect)

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51⟩ Which of the following is not an electrical quantity? A. voltage B. current C. distance D. power

Option C

(distance)

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52⟩ Two materials having temperature coefficients of 0.004 and 0.0004 respectively are joined in series. The overall temperature coefficient is likely to be A. 0.08 B. 0.04 C. 0.001 D. 0.0001

Option C

(0.001)

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53⟩ Seven thousand volts can be expressed as A. 7 kV B. 7 MV C. 7 mV D. either 7 kV or 7 mV

Option A

(7 kV)

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54⟩ The number of valence electrons in pentavalent impurity is A. 5 B. 4 C. 3 D. 1

Option A

(5)

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55⟩ In a coaxial cable, braided copper is used for A. conductor B. shield C. dielectric D. jacket

Option B

(shield)

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56⟩ Which element exhibits the property of inertia? A. Resistance B. Capacitance C. Inductance D. Both resistance and inductance

Option C

(Inductance)

Explanation:

Inductance opposes rise and decay of current. Hence it has the property of inertia.

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57⟩ In atomic physics, a state with l = 0 is called p state. A. True B. False

Option B

(False)

Explanation:

The state with l = 0 is called s state.

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58⟩ Material which lack permanent magnetic dipoles are known as A. paramagnetic B. diamagnetic C. ferromagnetic D. ferrimagnetic

Option B

(diamagnetic)

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59⟩ If the diameter of a wire is doubled, its current carrying capacity becomes A. one-fourth B. half C. twice D. four times

Option D

(four times)

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60⟩ The hysteresis phenomenon in ferromagnetic materials exists at all temperatures. A. True B. False

Option B

(False)

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Engineering

Home Engineering Engineering

82 Engineering Questions And Answers

41⟩ The angle of inclination of a vehicle when moving along a circular path __________ upon its mass. A. depends B. does not depend

42⟩ A smooth cylinder lying on its convex surface remains in __________ equilibrium. A. stable B. unstable C. neutral

43⟩ The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is A. sin θ B. cos θ C. tan θ D. cosec θ

44⟩ If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is A. 30° B. 60° C. 90° D. 120°

45⟩ According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction. A. True B. False

46⟩ The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion. A. Agree B. Disagree

47⟩ Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity A. v B. v/2 C. v/4 D. v/8

48⟩ Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies. A. Yes B. No

49⟩ The friction experienced by a body, when in motion, is known as A. rolling friction B. dynamic friction C. limiting friction D. static friction

50⟩ The coefficient of restitution for elastic bodies is one. A. Correct B. Incorrect

51⟩ Which of the following is not an electrical quantity? A. voltage B. current C. distance D. power

52⟩ Two materials having temperature coefficients of 0.004 and 0.0004 respectively are joined in series. The overall temperature coefficient is likely to be A. 0.08 B. 0.04 C. 0.001 D. 0.0001

53⟩ Seven thousand volts can be expressed as A. 7 kV B. 7 MV C. 7 mV D. either 7 kV or 7 mV

54⟩ The number of valence electrons in pentavalent impurity is A. 5 B. 4 C. 3 D. 1

55⟩ In a coaxial cable, braided copper is used for A. conductor B. shield C. dielectric D. jacket

56⟩ Which element exhibits the property of inertia? A. Resistance B. Capacitance C. Inductance D. Both resistance and inductance

57⟩ In atomic physics, a state with l = 0 is called p state. A. True B. False

58⟩ Material which lack permanent magnetic dipoles are known as A. paramagnetic B. diamagnetic C. ferromagnetic D. ferrimagnetic

59⟩ If the diameter of a wire is doubled, its current carrying capacity becomes A. one-fourth B. half C. twice D. four times

60⟩ The hysteresis phenomenon in ferromagnetic materials exists at all temperatures. A. True B. False

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