Two hundred milliliters of oxygen gas (O₂) are collected over water at 23 deg C and a pressure of 1 atmosphere. What volume would the oxygen occupy dry at 273 K and 1 atmosphere?

• 179.3 mL

• 184.4 mL

• 190.9 mL

• 194.5 mL

1 bar is equivalent to how many pascals?

• 10³

• 10⁴

• 10⁵

• 10⁶

What law provides an absolute reference point for the determination of entropy?

• Zeroth law of thermodynamics

• Second law of thermodynamics

• First law of thermodynamics

• Third law of thermodynamics

On a level roadway, the coefficient of friction between the tires of a car and the asphalt is 0.80. What is the maximum speed at which a car can round a turn of radius 25 m if the car is not to slip?

• 14 mph

• 31 mph

• 43 mph

• 18 mph

What height of mercury column is equivalent to a pressure of 100 psig? Density of mercury is 848 lb/ft³.

• 14 ft

• 17 ft

• 12 ft

• 11 ft

MC cable insulation shall have a maximum operating temperature of not less than

• 75 deg C

• 80 deg C

• 90 deg C

• 60 deg C

Steels can be strengthened by all of the following practices, EXCEPT:

• Annealing

• Quenching and tempering

• Work hardening

• Grain refinement

Which of the following metals has the highest melting point?

• Copper

• Gold

• Silver

• Tungsten

The term "enthalpy" comes from the Greek "enthalpen" which means

• Warm

• Hot

• Heat

• Cold

What is the strong bond between hydrogen atoms known as?

• The ionic bond

• The metallic bond

• Ionic and metallic bonds

• The covalent bond