Engineering Physics Practice Test 14

First Law of Thermodynamics MCQ (Multiple Choice Questions) PDF - 14

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First Law of Thermodynamics Questions and Answers PDF Download: Quiz 14

MCQ 66: 1st law of thermodynamic states that internal energy of system tends to increase if energy is

A) subtracted as heat

B) added as heat

C) added as electrons

D) constant

MCQ 67: Normal blood systolic pressure is approximately equals to

A) 1.6x10⁴ Pa

B) 1x10^-12 Pa

C) 2x10⁵ Pa

D) 1x10⁵ Pa

MCQ 68: Aluminium has a density of

A) 2320 kg/m³

B) 7860 kg/m³

C) 2700 kg/m³

D) 2190 kg/m³

MCQ 69: Mirror which converges light to a focal point is

A) concave mirror

B) convex mirror

C) plane mirror

D) virtual mirror

MCQ 70: Sirius B has a mass of

A) 1.99x10³⁰ kg

B) 2x10³⁰ kg

C) 1.90x10²⁷ kg

D) 5.98x10²⁴ kg

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