ST2054

What is the chemical formula of ammonia?

• NH4
• NH3
• N2H3
• N3H2

It is a quantity which measures the resistance of the mass to being revolved about the line

• Modulus of elasticity
• Strain
• Stress
• Moment of inertia

What is the empirical formula for C2H6?

• CH3
• C2H
• CH2
• C3H2

What do you call an overload condition that occurs near large concentrated loads?

• Web crippling
• Load buckling
• Vertical buckling
• Lateral buckling

What do you call the relative stiffness when more than one spring or resisting member shares the load?

• Volumetric expansion
• Rigidness
• Stiffness
• Shear modulus

Maximum distance for support of rigid metallic conduits.

• 2000 mm
• 2500 mm
• 3000 mm
• 3500 mm

The maximum diameter of a steel ground electrode is

• 10 mm
• 12 mm
• 14 mm
• 16 mm

Which of the following moment occurs when the shear is zero?

• Statistical moment
• One-way moment
• Resisting moment
• Maximum moment

Which one will occur whenever there is a discontinuity or non-uniformity in an object?

• Stress riser
• Stress concentrations
• Principal stresses
• Combined stresses

Any pair of equal, opposite and parallel forces constitutes which of the following?

• Couple
• torque
• Moment
• Dead load