4th Year Quiz Show Questions

Easy (30 secs)

Which of the following refers to the diffusion of a solvent into a stronger solution in an attempt to equalize the two concentrations?

(a)  

Easy (30 secs)

The mathematical expression (1+i)^n is referred to

• A. Compounded

• B. Interest Factor

• C. Future Factor

• D. Compound Amount Factor

Easy (30 secs)

The mass of neutron is approximately how many times greater than the mass of an electron?

• A. 1890

• B. 1855

• C. 1811

• D. 1839

Average (45 secs)

Calculate the volume (in liter) of a 20.0 M solution containing 4.22 mol of solute.

• A. 0.12

• B. 1.2

• C. 0.47

• D. 2.11

Answer explanation

Easy (30 secs)

Evaluate the limit: limit (x² – 16)/(x – 4) as x approaches to 4.

• A. 4

• B. 2

• C. 8

• D. 16

Average (45 secs)

The Ford Company increased its assets price from 22 to 29 pesos. What is the percentage of increase?

• A. 15.74 %

• B. 55%

• C. 39.25 %

• D. 31.82 %

Difficult (60 secs)

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Average (45 secs)

The no-load speed of a compound motor is 1,650 rpm. How fast will it operate when it delivers rated horsepower output, if the speed regulation is 12.5 percent?

• A. 1,444 rpm

• B. 1,467 rpm

• C. 1,856 rpm

• D. 1,500 rpm

Answer explanation

Difficult (60 secs)

A 12 v DC shunt motor has an armature resistance of 200 mΩ. if the full-load armature current is 75 amperes, find the starting resistance needed to limit the armature starting current to 150% of the full-load value. Allow brush contact drop of 2 volts.

• A. 0.804Ω

• B. 0.849Ω

• C. 0.822Ω

• D. 0.862Ω

Answer explanation

 

Easy (30 secs)

When a source of sound or a listener or both are in motion relative to the air, the pitch of the sound heard by the listener is not the same as when source and listener are at rest. The phenomenon refers to?

(a)