Unit 2 MCQ Bank

For a roller support on a horizontal surface in a 2D beam problem, the reaction is usually:

A UDL of intensity w over a loaded length L is replaced by which equivalent point load?

An applied couple on a beam appears in which equilibrium equation?

A triangular UVL varying from 0 to w over length L is replaced by:

A pin support in a 2D equilibrium problem can provide:

At a smooth contact surface, the reaction force acts:

When solving beam reactions, why is it often efficient to take moments about one support first?

A fixed support in planar equilibrium can provide:

Lami's theorem applies directly only when a body is in equilibrium under:

For a smooth cylinder touching a smooth plane, the reaction from the plane acts:

A UDL acts only over the first 4 m of a 10 m beam. Where does its equivalent point load act from the left end?

If anticlockwise moments are taken as positive, a clockwise applied couple enters the moment equation as:

If a couple is shown at a different point on the same beam, what changes in the moment equation?

For a UVL that increases from left to right, which support usually carries the larger reaction?

If a beam has a pin at A, a roller at B, and all applied loads are vertical, then the horizontal reaction at A is:

For a ladder against a smooth vertical wall, the wall reaction is:

At the rough floor contact of a ladder problem, the safest free-body-model choice is usually:

If a rigid body is in equilibrium under exactly three non-parallel forces, their lines of action must be:

A two-force member in equilibrium carries forces that are:

Before writing Sigma Fx, Sigma Fy, or Sigma M, the body must first be:

An ideal hinge or pin support does not resist:

A rocker support on a smooth surface provides a reaction that acts:

The magnitude of the equivalent point load for any distributed load equals:

A point load contributes zero moment about point A if:

Adding an external couple to a beam affects which equilibrium relationship directly?

For a simply supported beam carrying only vertical loads, the sum of vertical reactions must equal:

For a beam carrying one inclined point load, which part of that load enters the moment equation about a support on the beam axis?

A smooth collar sliding on a vertical guide can exert on the guide-connected member a reaction that is:

A triangular UVL that rises from zero at A to maximum at B has its resultant located:

In a wall-bracket or crane problem, the tension in a cable acts:

If you take moments about support B on a simply supported beam, which reaction drops out automatically?

For a beam with a pin at A and a roller at B, a horizontal external force is resisted primarily by:

For a rigid body in plane equilibrium, the maximum number of independent scalar equilibrium equations is:

Replacing a distributed load by its equivalent point load is valid for finding support reactions because:

Why should support types be identified before writing equations?

For a rough surface contact, it is usually best to represent the contact reaction as:

For a smooth surface, which contact-force component is guaranteed to be absent?

When preparing a free-body diagram for beam reactions, a point load should be:

For a triangular UVL that increases from left to right, the distance L/3 should be measured from:

If the chosen sign convention is anticlockwise positive, an anticlockwise applied couple is entered as:

Why does an applied couple not appear in Sigma Fy = 0?

For a sphere held between two smooth planes, each plane reaction acts:

Which practice is most reliable when writing a moment equation?

If a beam carries both a rectangular load and a triangular load, the cleanest reaction method is usually to:

If an external point load acts exactly at support A, what is its moment about A?

On the free-body diagram of the entire beam or rigid body, internal forces within the body are:

In many ladder-friction problems, taking moments about the foot of the ladder is useful because it eliminates:

For a simply supported beam with two unknown vertical reactions, the most efficient equation sequence is often:

A planar support arrangement is statically convenient when the number of independent reaction unknowns is:

If a simply supported beam carries only an external couple and no other loads, the support reactions must be: